./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-83.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090966e7-a25f-4d42-81e2-d665905effc2/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090966e7-a25f-4d42-81e2-d665905effc2/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090966e7-a25f-4d42-81e2-d665905effc2/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090966e7-a25f-4d42-81e2-d665905effc2/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-83.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090966e7-a25f-4d42-81e2-d665905effc2/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090966e7-a25f-4d42-81e2-d665905effc2/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1a326c2fbbb6417ff70dc27510b2ae37e6b7c3658951387b9f90f15bb09c3ae0 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:57:28,190 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:57:28,329 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090966e7-a25f-4d42-81e2-d665905effc2/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-26 11:57:28,339 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:57:28,340 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:57:28,374 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:57:28,375 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:57:28,376 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:57:28,377 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:57:28,382 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:57:28,383 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:57:28,383 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:57:28,384 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:57:28,386 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:57:28,386 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:57:28,387 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:57:28,387 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:57:28,387 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:57:28,388 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:57:28,388 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:57:28,389 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:57:28,389 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:57:28,390 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:57:28,390 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:57:28,391 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:57:28,391 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:57:28,391 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:57:28,392 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:57:28,393 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:57:28,393 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:57:28,394 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:57:28,395 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:57:28,395 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:57:28,395 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:57:28,396 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:57:28,396 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:57:28,396 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:57:28,396 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:57:28,396 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:57:28,397 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:57:28,397 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:57:28,397 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:57:28,398 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090966e7-a25f-4d42-81e2-d665905effc2/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090966e7-a25f-4d42-81e2-d665905effc2/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1a326c2fbbb6417ff70dc27510b2ae37e6b7c3658951387b9f90f15bb09c3ae0 [2023-11-26 11:57:28,747 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:57:28,800 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:57:28,803 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:57:28,804 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:57:28,805 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:57:28,807 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090966e7-a25f-4d42-81e2-d665905effc2/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-83.i [2023-11-26 11:57:31,895 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:57:32,227 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:57:32,229 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090966e7-a25f-4d42-81e2-d665905effc2/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-83.i [2023-11-26 11:57:32,243 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090966e7-a25f-4d42-81e2-d665905effc2/bin/uautomizer-verify-VRDe98Ueme/data/77a2b6c54/8b448849dda948ca9f8d6964dd612b07/FLAG1a2780403 [2023-11-26 11:57:32,262 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090966e7-a25f-4d42-81e2-d665905effc2/bin/uautomizer-verify-VRDe98Ueme/data/77a2b6c54/8b448849dda948ca9f8d6964dd612b07 [2023-11-26 11:57:32,272 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:57:32,275 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:57:32,279 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:57:32,279 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:57:32,286 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:57:32,287 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:57:32" (1/1) ... [2023-11-26 11:57:32,288 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fdeb01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:32, skipping insertion in model container [2023-11-26 11:57:32,289 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:57:32" (1/1) ... [2023-11-26 11:57:32,337 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:57:32,577 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090966e7-a25f-4d42-81e2-d665905effc2/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-83.i[915,928] [2023-11-26 11:57:32,673 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:57:32,694 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:57:32,713 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090966e7-a25f-4d42-81e2-d665905effc2/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-83.i[915,928] [2023-11-26 11:57:32,765 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:57:32,792 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:57:32,793 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:32 WrapperNode [2023-11-26 11:57:32,794 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:57:32,796 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:57:32,796 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:57:32,796 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:57:32,805 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:32" (1/1) ... [2023-11-26 11:57:32,819 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:32" (1/1) ... [2023-11-26 11:57:32,876 INFO L138 Inliner]: procedures = 26, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 104 [2023-11-26 11:57:32,877 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:57:32,884 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:57:32,885 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:57:32,885 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:57:32,896 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:32" (1/1) ... [2023-11-26 11:57:32,897 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:32" (1/1) ... [2023-11-26 11:57:32,900 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:32" (1/1) ... [2023-11-26 11:57:32,921 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-26 11:57:32,921 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:32" (1/1) ... [2023-11-26 11:57:32,921 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:32" (1/1) ... [2023-11-26 11:57:32,930 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:32" (1/1) ... [2023-11-26 11:57:32,933 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:32" (1/1) ... [2023-11-26 11:57:32,936 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:32" (1/1) ... [2023-11-26 11:57:32,938 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:32" (1/1) ... [2023-11-26 11:57:32,944 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:57:32,945 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:57:32,945 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:57:32,945 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:57:32,946 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:32" (1/1) ... [2023-11-26 11:57:32,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:57:32,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090966e7-a25f-4d42-81e2-d665905effc2/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:33,000 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090966e7-a25f-4d42-81e2-d665905effc2/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:33,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090966e7-a25f-4d42-81e2-d665905effc2/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:57:33,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:57:33,055 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 11:57:33,055 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 11:57:33,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 11:57:33,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:57:33,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:57:33,196 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:57:33,198 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:57:33,573 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:57:33,652 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:57:33,653 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 11:57:33,665 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:57:33 BoogieIcfgContainer [2023-11-26 11:57:33,666 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:57:33,668 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:57:33,668 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:57:33,672 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:57:33,672 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:57:32" (1/3) ... [2023-11-26 11:57:33,673 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b2c5b60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:57:33, skipping insertion in model container [2023-11-26 11:57:33,673 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:32" (2/3) ... [2023-11-26 11:57:33,674 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b2c5b60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:57:33, skipping insertion in model container [2023-11-26 11:57:33,674 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:57:33" (3/3) ... [2023-11-26 11:57:33,675 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-83.i [2023-11-26 11:57:33,695 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:57:33,695 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 11:57:33,746 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:57:33,754 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6b2ce45, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:57:33,754 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 11:57:33,758 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 21 states have (on average 1.380952380952381) internal successors, (29), 22 states have internal predecessors, (29), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-26 11:57:33,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-11-26 11:57:33,771 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:57:33,772 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:57:33,772 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:57:33,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:33,778 INFO L85 PathProgramCache]: Analyzing trace with hash 2095444992, now seen corresponding path program 1 times [2023-11-26 11:57:33,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:33,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830390913] [2023-11-26 11:57:33,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:33,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:33,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:34,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:57:34,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830390913] [2023-11-26 11:57:34,054 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-26 11:57:34,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [725225606] [2023-11-26 11:57:34,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:34,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:57:34,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090966e7-a25f-4d42-81e2-d665905effc2/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:34,061 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090966e7-a25f-4d42-81e2-d665905effc2/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:57:34,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090966e7-a25f-4d42-81e2-d665905effc2/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 11:57:34,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:34,239 INFO L262 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-26 11:57:34,248 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:57:34,313 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2023-11-26 11:57:34,318 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:57:34,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [725225606] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:57:34,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:57:34,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:57:34,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222461943] [2023-11-26 11:57:34,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:57:34,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 11:57:34,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:57:34,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 11:57:34,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:57:34,377 INFO L87 Difference]: Start difference. First operand has 39 states, 21 states have (on average 1.380952380952381) internal successors, (29), 22 states have internal predecessors, (29), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-26 11:57:34,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:57:34,430 INFO L93 Difference]: Finished difference Result 77 states and 132 transitions. [2023-11-26 11:57:34,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 11:57:34,435 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 90 [2023-11-26 11:57:34,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:57:34,446 INFO L225 Difference]: With dead ends: 77 [2023-11-26 11:57:34,446 INFO L226 Difference]: Without dead ends: 37 [2023-11-26 11:57:34,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:57:34,456 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:57:34,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 51 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:57:34,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-11-26 11:57:34,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2023-11-26 11:57:34,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 20 states have (on average 1.2) internal successors, (24), 20 states have internal predecessors, (24), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-26 11:57:34,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 54 transitions. [2023-11-26 11:57:34,514 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 54 transitions. Word has length 90 [2023-11-26 11:57:34,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:57:34,515 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 54 transitions. [2023-11-26 11:57:34,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-26 11:57:34,515 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 54 transitions. [2023-11-26 11:57:34,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-11-26 11:57:34,519 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:57:34,520 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:57:34,525 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090966e7-a25f-4d42-81e2-d665905effc2/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:34,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090966e7-a25f-4d42-81e2-d665905effc2/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:57:34,721 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:57:34,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:34,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1295335866, now seen corresponding path program 1 times [2023-11-26 11:57:34,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:34,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51084125] [2023-11-26 11:57:34,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:34,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:34,799 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:57:34,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1933139920] [2023-11-26 11:57:34,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:34,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:57:34,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090966e7-a25f-4d42-81e2-d665905effc2/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:34,809 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090966e7-a25f-4d42-81e2-d665905effc2/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:57:34,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090966e7-a25f-4d42-81e2-d665905effc2/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 11:57:34,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:57:34,952 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:57:34,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:57:35,055 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:57:35,056 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 11:57:35,057 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-26 11:57:35,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090966e7-a25f-4d42-81e2-d665905effc2/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:35,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090966e7-a25f-4d42-81e2-d665905effc2/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:57:35,269 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-26 11:57:35,274 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 11:57:35,368 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 11:57:35 BoogieIcfgContainer [2023-11-26 11:57:35,368 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 11:57:35,369 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 11:57:35,369 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 11:57:35,382 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 11:57:35,383 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:57:33" (3/4) ... [2023-11-26 11:57:35,391 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 11:57:35,392 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 11:57:35,393 INFO L158 Benchmark]: Toolchain (without parser) took 3118.19ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 107.3MB in the beginning and 140.6MB in the end (delta: -33.3MB). Peak memory consumption was 2.7MB. Max. memory is 16.1GB. [2023-11-26 11:57:35,393 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 115.3MB. Free memory is still 87.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:57:35,394 INFO L158 Benchmark]: CACSL2BoogieTranslator took 515.82ms. Allocated memory is still 142.6MB. Free memory was 107.3MB in the beginning and 94.9MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-26 11:57:35,394 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.18ms. Allocated memory is still 142.6MB. Free memory was 94.9MB in the beginning and 91.3MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 11:57:35,395 INFO L158 Benchmark]: Boogie Preprocessor took 59.81ms. Allocated memory is still 142.6MB. Free memory was 91.3MB in the beginning and 86.3MB in the end (delta: 5.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:57:35,396 INFO L158 Benchmark]: RCFGBuilder took 720.94ms. Allocated memory is still 142.6MB. Free memory was 86.3MB in the beginning and 100.1MB in the end (delta: -13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-26 11:57:35,396 INFO L158 Benchmark]: TraceAbstraction took 1700.05ms. Allocated memory is still 142.6MB. Free memory was 98.9MB in the beginning and 108.7MB in the end (delta: -9.8MB). Peak memory consumption was 58.3MB. Max. memory is 16.1GB. [2023-11-26 11:57:35,397 INFO L158 Benchmark]: Witness Printer took 23.53ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 108.6MB in the beginning and 140.6MB in the end (delta: -32.0MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. [2023-11-26 11:57:35,400 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 115.3MB. Free memory is still 87.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 515.82ms. Allocated memory is still 142.6MB. Free memory was 107.3MB in the beginning and 94.9MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.18ms. Allocated memory is still 142.6MB. Free memory was 94.9MB in the beginning and 91.3MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.81ms. Allocated memory is still 142.6MB. Free memory was 91.3MB in the beginning and 86.3MB in the end (delta: 5.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 720.94ms. Allocated memory is still 142.6MB. Free memory was 86.3MB in the beginning and 100.1MB in the end (delta: -13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1700.05ms. Allocated memory is still 142.6MB. Free memory was 98.9MB in the beginning and 108.7MB in the end (delta: -9.8MB). Peak memory consumption was 58.3MB. Max. memory is 16.1GB. * Witness Printer took 23.53ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 108.6MB in the beginning and 140.6MB in the end (delta: -32.0MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 83, overapproximation of someBinaryArithmeticDOUBLEoperation at line 50. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 128; [L23] unsigned char var_1_2 = 0; [L24] unsigned short int var_1_3 = 25; [L25] unsigned char var_1_4 = 4; [L26] double var_1_8 = 49.8; [L27] double var_1_9 = 127.8; [L28] double var_1_10 = 7.2; [L29] signed char var_1_11 = -1; [L30] signed char var_1_12 = 2; [L31] signed char var_1_13 = 4; [L32] signed char var_1_14 = 16; [L33] unsigned short int var_1_15 = 0; [L87] isInitial = 1 [L88] FCALL initially() [L89] int k_loop; [L90] k_loop = 0 VAL [isInitial=1, k_loop=0, var_1_10=36/5, var_1_11=-1, var_1_12=2, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=0, var_1_3=25, var_1_4=4, var_1_8=249/5, var_1_9=639/5] [L90] COND TRUE k_loop < 1 [L91] FCALL updateLastVariables() [L92] CALL updateVariables() [L56] var_1_2 = __VERIFIER_nondet_uchar() [L57] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=36/5, var_1_11=-1, var_1_12=2, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_3=25, var_1_4=4, var_1_8=249/5, var_1_9=639/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=36/5, var_1_11=-1, var_1_12=2, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_3=25, var_1_4=4, var_1_8=249/5, var_1_9=639/5] [L57] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=36/5, var_1_11=-1, var_1_12=2, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_3=25, var_1_4=4, var_1_8=249/5, var_1_9=639/5] [L58] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=36/5, var_1_11=-1, var_1_12=2, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=1, var_1_3=25, var_1_4=4, var_1_8=249/5, var_1_9=639/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=36/5, var_1_11=-1, var_1_12=2, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=1, var_1_3=25, var_1_4=4, var_1_8=249/5, var_1_9=639/5] [L58] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_10=36/5, var_1_11=-1, var_1_12=2, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=1, var_1_3=25, var_1_4=4, var_1_8=249/5, var_1_9=639/5] [L59] var_1_3 = __VERIFIER_nondet_ushort() [L60] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=36/5, var_1_11=-1, var_1_12=2, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=1, var_1_4=4, var_1_8=249/5, var_1_9=639/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=36/5, var_1_11=-1, var_1_12=2, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=1, var_1_4=4, var_1_8=249/5, var_1_9=639/5] [L60] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=36/5, var_1_11=-1, var_1_12=2, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=1, var_1_4=4, var_1_8=249/5, var_1_9=639/5] [L61] CALL assume_abort_if_not(var_1_3 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_10=36/5, var_1_11=-1, var_1_12=2, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=1, var_1_3=0, var_1_4=4, var_1_8=249/5, var_1_9=639/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=36/5, var_1_11=-1, var_1_12=2, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=1, var_1_3=0, var_1_4=4, var_1_8=249/5, var_1_9=639/5] [L61] RET assume_abort_if_not(var_1_3 <= 65534) VAL [isInitial=1, var_1_10=36/5, var_1_11=-1, var_1_12=2, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=1, var_1_3=0, var_1_4=4, var_1_8=249/5, var_1_9=639/5] [L62] var_1_4 = __VERIFIER_nondet_uchar() [L63] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=36/5, var_1_11=-1, var_1_12=2, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=1, var_1_3=0, var_1_8=249/5, var_1_9=639/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=36/5, var_1_11=-1, var_1_12=2, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=1, var_1_3=0, var_1_8=249/5, var_1_9=639/5] [L63] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_10=36/5, var_1_11=-1, var_1_12=2, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=1, var_1_3=0, var_1_8=249/5, var_1_9=639/5] [L64] CALL assume_abort_if_not(var_1_4 <= 255) VAL [\old(cond)=1, isInitial=1, var_1_10=36/5, var_1_11=-1, var_1_12=2, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=1, var_1_3=0, var_1_8=249/5, var_1_9=639/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=36/5, var_1_11=-1, var_1_12=2, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=1, var_1_3=0, var_1_8=249/5, var_1_9=639/5] [L64] RET assume_abort_if_not(var_1_4 <= 255) VAL [isInitial=1, var_1_10=36/5, var_1_11=-1, var_1_12=2, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=1, var_1_3=0, var_1_8=249/5, var_1_9=639/5] [L65] CALL assume_abort_if_not(var_1_4 != 0) VAL [\old(cond)=1, isInitial=1, var_1_10=36/5, var_1_11=-1, var_1_12=2, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=1, var_1_3=0, var_1_4=1, var_1_8=249/5, var_1_9=639/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=36/5, var_1_11=-1, var_1_12=2, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=1, var_1_3=0, var_1_4=1, var_1_8=249/5, var_1_9=639/5] [L65] RET assume_abort_if_not(var_1_4 != 0) VAL [isInitial=1, var_1_10=36/5, var_1_11=-1, var_1_12=2, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=1, var_1_3=0, var_1_4=1, var_1_8=249/5, var_1_9=639/5] [L66] var_1_9 = __VERIFIER_nondet_double() [L67] CALL assume_abort_if_not((var_1_9 >= -461168.6018427382800e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 4611686.018427382800e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=36/5, var_1_11=-1, var_1_12=2, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=1, var_1_3=0, var_1_4=1, var_1_8=249/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=36/5, var_1_11=-1, var_1_12=2, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=1, var_1_3=0, var_1_4=1, var_1_8=249/5] [L67] RET assume_abort_if_not((var_1_9 >= -461168.6018427382800e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 4611686.018427382800e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=36/5, var_1_11=-1, var_1_12=2, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=1, var_1_3=0, var_1_4=1, var_1_8=249/5] [L68] var_1_10 = __VERIFIER_nondet_double() [L69] CALL assume_abort_if_not((var_1_10 >= -461168.6018427382800e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 4611686.018427382800e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_11=-1, var_1_12=2, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=1, var_1_3=0, var_1_4=1, var_1_8=249/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_11=-1, var_1_12=2, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=1, var_1_3=0, var_1_4=1, var_1_8=249/5] [L69] RET assume_abort_if_not((var_1_10 >= -461168.6018427382800e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 4611686.018427382800e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, var_1_11=-1, var_1_12=2, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=1, var_1_3=0, var_1_4=1, var_1_8=249/5] [L70] var_1_12 = __VERIFIER_nondet_char() [L71] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=-1, var_1_12=0, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=1, var_1_3=0, var_1_4=1, var_1_8=249/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_11=-1, var_1_12=0, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=1, var_1_3=0, var_1_4=1, var_1_8=249/5] [L71] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, var_1_11=-1, var_1_12=0, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=1, var_1_3=0, var_1_4=1, var_1_8=249/5] [L72] CALL assume_abort_if_not(var_1_12 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_11=-1, var_1_12=0, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=1, var_1_3=0, var_1_4=1, var_1_8=249/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_11=-1, var_1_12=0, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=1, var_1_3=0, var_1_4=1, var_1_8=249/5] [L72] RET assume_abort_if_not(var_1_12 <= 63) VAL [isInitial=1, var_1_11=-1, var_1_12=0, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=1, var_1_3=0, var_1_4=1, var_1_8=249/5] [L73] var_1_13 = __VERIFIER_nondet_char() [L74] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=-1, var_1_12=0, var_1_13=0, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=1, var_1_3=0, var_1_4=1, var_1_8=249/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_11=-1, var_1_12=0, var_1_13=0, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=1, var_1_3=0, var_1_4=1, var_1_8=249/5] [L74] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, var_1_11=-1, var_1_12=0, var_1_13=0, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=1, var_1_3=0, var_1_4=1, var_1_8=249/5] [L75] CALL assume_abort_if_not(var_1_13 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_11=-1, var_1_12=0, var_1_13=0, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=1, var_1_3=0, var_1_4=1, var_1_8=249/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_11=-1, var_1_12=0, var_1_13=0, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=1, var_1_3=0, var_1_4=1, var_1_8=249/5] [L75] RET assume_abort_if_not(var_1_13 <= 63) VAL [isInitial=1, var_1_11=-1, var_1_12=0, var_1_13=0, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=1, var_1_3=0, var_1_4=1, var_1_8=249/5] [L76] var_1_14 = __VERIFIER_nondet_char() [L77] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=-1, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=0, var_1_1=128, var_1_2=1, var_1_3=0, var_1_4=1, var_1_8=249/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_11=-1, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=0, var_1_1=128, var_1_2=1, var_1_3=0, var_1_4=1, var_1_8=249/5] [L77] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, var_1_11=-1, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=0, var_1_1=128, var_1_2=1, var_1_3=0, var_1_4=1, var_1_8=249/5] [L78] CALL assume_abort_if_not(var_1_14 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_11=-1, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=0, var_1_1=128, var_1_2=1, var_1_3=0, var_1_4=1, var_1_8=249/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_11=-1, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=0, var_1_1=128, var_1_2=1, var_1_3=0, var_1_4=1, var_1_8=249/5] [L78] RET assume_abort_if_not(var_1_14 <= 126) VAL [isInitial=1, var_1_11=-1, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=0, var_1_1=128, var_1_2=1, var_1_3=0, var_1_4=1, var_1_8=249/5] [L92] RET updateVariables() [L93] CALL step() [L37] var_1_11 = ((var_1_12 + var_1_13) - ((((25) < (var_1_14)) ? (25) : (var_1_14)))) [L38] var_1_15 = var_1_14 [L39] signed long int stepLocal_0 = var_1_3 / var_1_4; VAL [isInitial=1, stepLocal_0=0, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=0, var_1_1=128, var_1_2=1, var_1_3=0, var_1_4=1, var_1_8=249/5] [L40] COND TRUE \read(var_1_2) [L41] var_1_1 = (((((((var_1_3) < 0 ) ? -(var_1_3) : (var_1_3))) < 0 ) ? -((((var_1_3) < 0 ) ? -(var_1_3) : (var_1_3))) : ((((var_1_3) < 0 ) ? -(var_1_3) : (var_1_3))))) VAL [isInitial=1, stepLocal_0=0, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=0, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=1, var_1_8=249/5] [L49] COND TRUE var_1_11 >= ((var_1_3 / var_1_4) + (var_1_1 * var_1_11)) [L50] var_1_8 = (var_1_9 + ((((var_1_10) < 0 ) ? -(var_1_10) : (var_1_10)))) VAL [isInitial=1, stepLocal_0=0, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=0, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=1] [L93] RET step() [L94] CALL, EXPR property() [L83-L84] return (((var_1_2 ? (var_1_1 == ((unsigned short int) (((((((var_1_3) < 0 ) ? -(var_1_3) : (var_1_3))) < 0 ) ? -((((var_1_3) < 0 ) ? -(var_1_3) : (var_1_3))) : ((((var_1_3) < 0 ) ? -(var_1_3) : (var_1_3))))))) : (((var_1_3 / var_1_4) >= (((((var_1_15 * var_1_15)) < (var_1_11)) ? ((var_1_15 * var_1_15)) : (var_1_11)))) ? (var_1_1 == ((unsigned short int) var_1_4)) : (var_1_1 == ((unsigned short int) 5)))) && ((var_1_11 >= ((var_1_3 / var_1_4) + (var_1_1 * var_1_11))) ? (var_1_8 == ((double) (var_1_9 + ((((var_1_10) < 0 ) ? -(var_1_10) : (var_1_10)))))) : (var_1_8 == ((double) var_1_9)))) && (var_1_11 == ((signed char) ((var_1_12 + var_1_13) - ((((25) < (var_1_14)) ? (25) : (var_1_14))))))) && (var_1_15 == ((unsigned short int) var_1_14)) ; [L94] RET, EXPR property() [L94] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=0, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=1] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=0, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 2, TraceHistogramMax: 15, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 51 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 51 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 89 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 270 NumberOfCodeBlocks, 270 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 89 ConstructedInterpolants, 0 QuantifiedInterpolants, 89 SizeOfPredicates, 0 NumberOfNonLiveVariables, 218 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 420/420 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-26 11:57:35,425 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090966e7-a25f-4d42-81e2-d665905effc2/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090966e7-a25f-4d42-81e2-d665905effc2/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090966e7-a25f-4d42-81e2-d665905effc2/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090966e7-a25f-4d42-81e2-d665905effc2/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090966e7-a25f-4d42-81e2-d665905effc2/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-83.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090966e7-a25f-4d42-81e2-d665905effc2/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090966e7-a25f-4d42-81e2-d665905effc2/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1a326c2fbbb6417ff70dc27510b2ae37e6b7c3658951387b9f90f15bb09c3ae0 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:57:38,370 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:57:38,533 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090966e7-a25f-4d42-81e2-d665905effc2/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-26 11:57:38,542 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:57:38,543 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:57:38,591 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:57:38,592 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:57:38,593 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:57:38,595 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:57:38,600 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:57:38,601 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:57:38,602 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:57:38,603 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:57:38,605 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:57:38,606 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:57:38,607 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:57:38,607 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:57:38,608 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:57:38,609 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:57:38,610 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:57:38,610 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:57:38,611 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:57:38,612 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:57:38,612 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 11:57:38,613 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-26 11:57:38,613 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-26 11:57:38,614 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:57:38,614 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:57:38,615 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:57:38,615 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:57:38,617 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:57:38,617 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:57:38,618 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:57:38,618 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:57:38,618 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:57:38,619 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:57:38,620 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:57:38,620 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-26 11:57:38,620 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-26 11:57:38,621 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:57:38,621 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:57:38,621 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:57:38,622 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:57:38,622 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:57:38,623 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-26 11:57:38,623 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090966e7-a25f-4d42-81e2-d665905effc2/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090966e7-a25f-4d42-81e2-d665905effc2/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1a326c2fbbb6417ff70dc27510b2ae37e6b7c3658951387b9f90f15bb09c3ae0 [2023-11-26 11:57:39,082 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:57:39,111 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:57:39,114 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:57:39,115 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:57:39,116 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:57:39,119 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090966e7-a25f-4d42-81e2-d665905effc2/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-83.i [2023-11-26 11:57:42,358 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:57:42,681 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:57:42,681 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090966e7-a25f-4d42-81e2-d665905effc2/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-83.i [2023-11-26 11:57:42,690 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090966e7-a25f-4d42-81e2-d665905effc2/bin/uautomizer-verify-VRDe98Ueme/data/37171f7c8/232f3f28171e492fa87ed53ba39b0b05/FLAGb82b460bc [2023-11-26 11:57:42,705 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090966e7-a25f-4d42-81e2-d665905effc2/bin/uautomizer-verify-VRDe98Ueme/data/37171f7c8/232f3f28171e492fa87ed53ba39b0b05 [2023-11-26 11:57:42,707 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:57:42,709 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:57:42,710 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:57:42,711 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:57:42,717 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:57:42,718 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:57:42" (1/1) ... [2023-11-26 11:57:42,719 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30cd1464 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:42, skipping insertion in model container [2023-11-26 11:57:42,719 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:57:42" (1/1) ... [2023-11-26 11:57:42,755 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:57:42,926 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090966e7-a25f-4d42-81e2-d665905effc2/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-83.i[915,928] [2023-11-26 11:57:42,977 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:57:42,994 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:57:43,009 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090966e7-a25f-4d42-81e2-d665905effc2/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-83.i[915,928] [2023-11-26 11:57:43,034 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:57:43,055 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:57:43,055 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:43 WrapperNode [2023-11-26 11:57:43,056 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:57:43,057 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:57:43,057 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:57:43,057 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:57:43,066 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:43" (1/1) ... [2023-11-26 11:57:43,081 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:43" (1/1) ... [2023-11-26 11:57:43,112 INFO L138 Inliner]: procedures = 27, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 101 [2023-11-26 11:57:43,113 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:57:43,114 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:57:43,114 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:57:43,115 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:57:43,128 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:43" (1/1) ... [2023-11-26 11:57:43,128 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:43" (1/1) ... [2023-11-26 11:57:43,134 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:43" (1/1) ... [2023-11-26 11:57:43,150 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-26 11:57:43,150 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:43" (1/1) ... [2023-11-26 11:57:43,151 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:43" (1/1) ... [2023-11-26 11:57:43,163 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:43" (1/1) ... [2023-11-26 11:57:43,167 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:43" (1/1) ... [2023-11-26 11:57:43,171 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:43" (1/1) ... [2023-11-26 11:57:43,173 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:43" (1/1) ... [2023-11-26 11:57:43,178 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:57:43,179 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:57:43,179 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:57:43,180 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:57:43,181 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:43" (1/1) ... [2023-11-26 11:57:43,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:57:43,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090966e7-a25f-4d42-81e2-d665905effc2/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:43,220 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090966e7-a25f-4d42-81e2-d665905effc2/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:43,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090966e7-a25f-4d42-81e2-d665905effc2/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:57:43,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:57:43,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-26 11:57:43,253 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 11:57:43,253 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 11:57:43,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:57:43,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:57:43,422 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:57:43,424 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:57:44,468 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:57:44,572 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:57:44,572 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 11:57:44,573 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:57:44 BoogieIcfgContainer [2023-11-26 11:57:44,574 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:57:44,578 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:57:44,578 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:57:44,583 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:57:44,584 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:57:42" (1/3) ... [2023-11-26 11:57:44,586 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26bea105 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:57:44, skipping insertion in model container [2023-11-26 11:57:44,586 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:43" (2/3) ... [2023-11-26 11:57:44,589 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26bea105 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:57:44, skipping insertion in model container [2023-11-26 11:57:44,589 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:57:44" (3/3) ... [2023-11-26 11:57:44,590 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-83.i [2023-11-26 11:57:44,615 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:57:44,616 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 11:57:44,698 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:57:44,709 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5ea98aec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:57:44,710 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 11:57:44,716 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 21 states have (on average 1.380952380952381) internal successors, (29), 22 states have internal predecessors, (29), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-26 11:57:44,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-11-26 11:57:44,733 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:57:44,734 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:57:44,735 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:57:44,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:44,744 INFO L85 PathProgramCache]: Analyzing trace with hash 2095444992, now seen corresponding path program 1 times [2023-11-26 11:57:44,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 11:57:44,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [251621583] [2023-11-26 11:57:44,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:44,766 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 11:57:44,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090966e7-a25f-4d42-81e2-d665905effc2/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 11:57:44,770 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090966e7-a25f-4d42-81e2-d665905effc2/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-26 11:57:44,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090966e7-a25f-4d42-81e2-d665905effc2/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-26 11:57:45,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:45,196 INFO L262 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-26 11:57:45,245 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:57:45,318 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 220 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2023-11-26 11:57:45,321 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:57:45,322 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 11:57:45,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [251621583] [2023-11-26 11:57:45,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [251621583] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:57:45,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:57:45,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:57:45,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530397322] [2023-11-26 11:57:45,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:57:45,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 11:57:45,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 11:57:45,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 11:57:45,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:57:45,390 INFO L87 Difference]: Start difference. First operand has 39 states, 21 states have (on average 1.380952380952381) internal successors, (29), 22 states have internal predecessors, (29), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-26 11:57:46,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:57:46,022 INFO L93 Difference]: Finished difference Result 77 states and 132 transitions. [2023-11-26 11:57:46,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 11:57:46,026 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 90 [2023-11-26 11:57:46,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:57:46,038 INFO L225 Difference]: With dead ends: 77 [2023-11-26 11:57:46,038 INFO L226 Difference]: Without dead ends: 37 [2023-11-26 11:57:46,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:57:46,049 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-26 11:57:46,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 51 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-26 11:57:46,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-11-26 11:57:46,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2023-11-26 11:57:46,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 20 states have (on average 1.2) internal successors, (24), 20 states have internal predecessors, (24), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-26 11:57:46,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 54 transitions. [2023-11-26 11:57:46,103 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 54 transitions. Word has length 90 [2023-11-26 11:57:46,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:57:46,104 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 54 transitions. [2023-11-26 11:57:46,104 INFO L496 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-26 11:57:46,104 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 54 transitions. [2023-11-26 11:57:46,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-11-26 11:57:46,110 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:57:46,111 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:57:46,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090966e7-a25f-4d42-81e2-d665905effc2/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:46,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090966e7-a25f-4d42-81e2-d665905effc2/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 11:57:46,320 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:57:46,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:46,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1295335866, now seen corresponding path program 1 times [2023-11-26 11:57:46,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 11:57:46,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [895222619] [2023-11-26 11:57:46,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:46,323 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 11:57:46,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090966e7-a25f-4d42-81e2-d665905effc2/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 11:57:46,324 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090966e7-a25f-4d42-81e2-d665905effc2/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-26 11:57:46,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090966e7-a25f-4d42-81e2-d665905effc2/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-26 11:57:46,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:46,634 INFO L262 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-26 11:57:46,651 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:58:27,278 WARN L293 SmtUtils]: Spent 14.87s on a formula simplification that was a NOOP. DAG size: 84 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)