./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-40.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9b08c7-b3fd-4332-b662-040801a2d75a/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9b08c7-b3fd-4332-b662-040801a2d75a/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_ea9b08c7-b3fd-4332-b662-040801a2d75a/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9b08c7-b3fd-4332-b662-040801a2d75a/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-40.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9b08c7-b3fd-4332-b662-040801a2d75a/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_ea9b08c7-b3fd-4332-b662-040801a2d75a/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 08c7e61f5459d5fc0a0cd65e2d0a5eb61e01ee4aec3eee7dfe70e8ab0a3470e9 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:48:52,206 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:48:52,284 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9b08c7-b3fd-4332-b662-040801a2d75a/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-26 11:48:52,298 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:48:52,302 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:48:52,361 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:48:52,365 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:48:52,366 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:48:52,367 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:48:52,374 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:48:52,374 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:48:52,375 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:48:52,376 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:48:52,377 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:48:52,378 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:48:52,378 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:48:52,379 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:48:52,379 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:48:52,380 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:48:52,380 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:48:52,380 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:48:52,381 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:48:52,381 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:48:52,382 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:48:52,382 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:48:52,383 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:48:52,383 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:48:52,384 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:48:52,384 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:48:52,385 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:48:52,386 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:48:52,386 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:48:52,386 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:48:52,387 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:48:52,387 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:48:52,387 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:48:52,387 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:48:52,388 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:48:52,388 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:48:52,388 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:48:52,388 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:48:52,389 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:48:52,389 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_ea9b08c7-b3fd-4332-b662-040801a2d75a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9b08c7-b3fd-4332-b662-040801a2d75a/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08c7e61f5459d5fc0a0cd65e2d0a5eb61e01ee4aec3eee7dfe70e8ab0a3470e9 [2023-11-26 11:48:52,679 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:48:52,740 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:48:52,743 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:48:52,744 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:48:52,745 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:48:52,746 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9b08c7-b3fd-4332-b662-040801a2d75a/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-40.i [2023-11-26 11:48:55,869 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:48:56,169 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:48:56,170 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9b08c7-b3fd-4332-b662-040801a2d75a/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-40.i [2023-11-26 11:48:56,180 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9b08c7-b3fd-4332-b662-040801a2d75a/bin/uautomizer-verify-VRDe98Ueme/data/7f104d83d/52c159684f69439b81e6332336d86e12/FLAG8ab438788 [2023-11-26 11:48:56,205 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9b08c7-b3fd-4332-b662-040801a2d75a/bin/uautomizer-verify-VRDe98Ueme/data/7f104d83d/52c159684f69439b81e6332336d86e12 [2023-11-26 11:48:56,208 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:48:56,209 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:48:56,211 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:48:56,211 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:48:56,226 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:48:56,227 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:48:56" (1/1) ... [2023-11-26 11:48:56,228 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@567e472 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:56, skipping insertion in model container [2023-11-26 11:48:56,228 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:48:56" (1/1) ... [2023-11-26 11:48:56,261 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:48:56,464 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_ea9b08c7-b3fd-4332-b662-040801a2d75a/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-40.i[915,928] [2023-11-26 11:48:56,529 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:48:56,543 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:48:56,558 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_ea9b08c7-b3fd-4332-b662-040801a2d75a/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-40.i[915,928] [2023-11-26 11:48:56,585 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:48:56,604 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:48:56,604 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:56 WrapperNode [2023-11-26 11:48:56,605 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:48:56,606 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:48:56,606 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:48:56,606 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:48:56,615 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:56" (1/1) ... [2023-11-26 11:48:56,625 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:56" (1/1) ... [2023-11-26 11:48:56,656 INFO L138 Inliner]: procedures = 26, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 110 [2023-11-26 11:48:56,657 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:48:56,657 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:48:56,658 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:48:56,658 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:48:56,671 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:56" (1/1) ... [2023-11-26 11:48:56,672 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:56" (1/1) ... [2023-11-26 11:48:56,677 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:56" (1/1) ... [2023-11-26 11:48:56,697 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 11:48:56,697 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:56" (1/1) ... [2023-11-26 11:48:56,697 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:56" (1/1) ... [2023-11-26 11:48:56,706 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:56" (1/1) ... [2023-11-26 11:48:56,711 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:56" (1/1) ... [2023-11-26 11:48:56,713 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:56" (1/1) ... [2023-11-26 11:48:56,714 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:56" (1/1) ... [2023-11-26 11:48:56,717 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:48:56,718 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:48:56,719 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:48:56,719 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:48:56,720 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:56" (1/1) ... [2023-11-26 11:48:56,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:48:56,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9b08c7-b3fd-4332-b662-040801a2d75a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:48:56,777 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9b08c7-b3fd-4332-b662-040801a2d75a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:48:56,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9b08c7-b3fd-4332-b662-040801a2d75a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:48:56,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:48:56,824 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 11:48:56,826 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 11:48:56,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 11:48:56,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:48:56,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:48:56,978 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:48:56,986 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:48:57,417 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:48:57,491 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:48:57,491 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 11:48:57,492 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:48:57 BoogieIcfgContainer [2023-11-26 11:48:57,492 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:48:57,495 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:48:57,495 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:48:57,500 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:48:57,500 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:48:56" (1/3) ... [2023-11-26 11:48:57,501 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5edd6cce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:48:57, skipping insertion in model container [2023-11-26 11:48:57,501 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:56" (2/3) ... [2023-11-26 11:48:57,502 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5edd6cce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:48:57, skipping insertion in model container [2023-11-26 11:48:57,502 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:48:57" (3/3) ... [2023-11-26 11:48:57,503 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-40.i [2023-11-26 11:48:57,528 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:48:57,528 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 11:48:57,596 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:48:57,607 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;@53599699, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:48:57,607 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 11:48:57,612 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 27 states have internal predecessors, (37), 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 11:48:57,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-26 11:48:57,634 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:48:57,635 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:48:57,636 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:48:57,642 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:48:57,643 INFO L85 PathProgramCache]: Analyzing trace with hash 639431284, now seen corresponding path program 1 times [2023-11-26 11:48:57,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:48:57,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26353338] [2023-11-26 11:48:57,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:57,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:48:57,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:57,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:48:57,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26353338] [2023-11-26 11:48:57,930 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-26 11:48:57,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [538026388] [2023-11-26 11:48:57,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:57,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:48:57,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9b08c7-b3fd-4332-b662-040801a2d75a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:48:57,936 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9b08c7-b3fd-4332-b662-040801a2d75a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:48:57,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9b08c7-b3fd-4332-b662-040801a2d75a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 11:48:58,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:58,112 INFO L262 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-26 11:48:58,123 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:48:58,166 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 11:48:58,167 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:48:58,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [538026388] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:48:58,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:48:58,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:48:58,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891138889] [2023-11-26 11:48:58,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:48:58,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 11:48:58,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:48:58,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 11:48:58,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:48:58,221 INFO L87 Difference]: Start difference. First operand has 44 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 27 states have internal predecessors, (37), 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 11.5) internal successors, (23), 2 states have internal predecessors, (23), 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 11:48:58,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:48:58,269 INFO L93 Difference]: Finished difference Result 87 states and 148 transitions. [2023-11-26 11:48:58,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 11:48:58,272 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 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 93 [2023-11-26 11:48:58,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:48:58,281 INFO L225 Difference]: With dead ends: 87 [2023-11-26 11:48:58,282 INFO L226 Difference]: Without dead ends: 42 [2023-11-26 11:48:58,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 92 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 11:48:58,290 INFO L413 NwaCegarLoop]: 59 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, 59 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 11:48:58,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 59 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:48:58,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-11-26 11:48:58,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2023-11-26 11:48:58,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 25 states have (on average 1.28) internal successors, (32), 25 states have internal predecessors, (32), 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 11:48:58,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 62 transitions. [2023-11-26 11:48:58,343 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 62 transitions. Word has length 93 [2023-11-26 11:48:58,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:48:58,344 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 62 transitions. [2023-11-26 11:48:58,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 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 11:48:58,345 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 62 transitions. [2023-11-26 11:48:58,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-26 11:48:58,351 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:48:58,351 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:48:58,367 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9b08c7-b3fd-4332-b662-040801a2d75a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-26 11:48:58,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9b08c7-b3fd-4332-b662-040801a2d75a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-26 11:48:58,559 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:48:58,562 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:48:58,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1686083522, now seen corresponding path program 1 times [2023-11-26 11:48:58,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:48:58,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573409817] [2023-11-26 11:48:58,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:58,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:48:58,651 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:48:58,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1902441976] [2023-11-26 11:48:58,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:58,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:48:58,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9b08c7-b3fd-4332-b662-040801a2d75a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:48:58,654 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9b08c7-b3fd-4332-b662-040801a2d75a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:48:58,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9b08c7-b3fd-4332-b662-040801a2d75a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 11:48:58,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:58,814 INFO L262 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 11:48:58,823 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:48:58,943 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-26 11:48:58,943 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:48:58,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:48:58,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573409817] [2023-11-26 11:48:58,944 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:48:58,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1902441976] [2023-11-26 11:48:58,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1902441976] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:48:58,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:48:58,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:48:58,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503203705] [2023-11-26 11:48:58,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:48:58,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:48:58,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:48:58,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:48:58,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:48:58,963 INFO L87 Difference]: Start difference. First operand 42 states and 62 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-26 11:48:59,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:48:59,044 INFO L93 Difference]: Finished difference Result 91 states and 132 transitions. [2023-11-26 11:48:59,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:48:59,045 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 93 [2023-11-26 11:48:59,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:48:59,053 INFO L225 Difference]: With dead ends: 91 [2023-11-26 11:48:59,053 INFO L226 Difference]: Without dead ends: 50 [2023-11-26 11:48:59,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:48:59,057 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 12 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:48:59,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 107 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:48:59,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-11-26 11:48:59,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 44. [2023-11-26 11:48:59,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 27 states have internal predecessors, (34), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-26 11:48:59,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 64 transitions. [2023-11-26 11:48:59,073 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 64 transitions. Word has length 93 [2023-11-26 11:48:59,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:48:59,075 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 64 transitions. [2023-11-26 11:48:59,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-26 11:48:59,076 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 64 transitions. [2023-11-26 11:48:59,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-26 11:48:59,079 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:48:59,079 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:48:59,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9b08c7-b3fd-4332-b662-040801a2d75a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-26 11:48:59,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9b08c7-b3fd-4332-b662-040801a2d75a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:48:59,286 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:48:59,287 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:48:59,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1628825220, now seen corresponding path program 1 times [2023-11-26 11:48:59,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:48:59,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187265986] [2023-11-26 11:48:59,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:59,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:48:59,391 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:48:59,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1483473265] [2023-11-26 11:48:59,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:59,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:48:59,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9b08c7-b3fd-4332-b662-040801a2d75a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:48:59,404 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9b08c7-b3fd-4332-b662-040801a2d75a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:48:59,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9b08c7-b3fd-4332-b662-040801a2d75a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-26 11:48:59,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:48:59,636 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:48:59,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:48:59,758 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:48:59,759 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 11:48:59,760 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-26 11:48:59,774 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9b08c7-b3fd-4332-b662-040801a2d75a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-26 11:48:59,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9b08c7-b3fd-4332-b662-040801a2d75a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:48:59,972 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-26 11:48:59,977 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 11:49:00,070 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 11:49:00 BoogieIcfgContainer [2023-11-26 11:49:00,070 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 11:49:00,071 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 11:49:00,072 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 11:49:00,072 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 11:49:00,072 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:48:57" (3/4) ... [2023-11-26 11:49:00,075 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 11:49:00,076 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 11:49:00,078 INFO L158 Benchmark]: Toolchain (without parser) took 3868.05ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 135.5MB in the beginning and 138.7MB in the end (delta: -3.2MB). Peak memory consumption was 30.0MB. Max. memory is 16.1GB. [2023-11-26 11:49:00,079 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 123.7MB. Free memory is still 96.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:49:00,079 INFO L158 Benchmark]: CACSL2BoogieTranslator took 394.37ms. Allocated memory is still 163.6MB. Free memory was 135.5MB in the beginning and 122.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-26 11:49:00,080 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.70ms. Allocated memory is still 163.6MB. Free memory was 122.8MB in the beginning and 120.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:49:00,081 INFO L158 Benchmark]: Boogie Preprocessor took 60.11ms. Allocated memory is still 163.6MB. Free memory was 120.8MB in the beginning and 118.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:49:00,082 INFO L158 Benchmark]: RCFGBuilder took 773.81ms. Allocated memory is still 163.6MB. Free memory was 118.7MB in the beginning and 125.5MB in the end (delta: -6.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-26 11:49:00,083 INFO L158 Benchmark]: TraceAbstraction took 2575.64ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 124.7MB in the beginning and 138.7MB in the end (delta: -14.0MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. [2023-11-26 11:49:00,083 INFO L158 Benchmark]: Witness Printer took 5.37ms. Allocated memory is still 197.1MB. Free memory is still 138.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:49:00,087 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 123.7MB. Free memory is still 96.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 394.37ms. Allocated memory is still 163.6MB. Free memory was 135.5MB in the beginning and 122.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.70ms. Allocated memory is still 163.6MB. Free memory was 122.8MB in the beginning and 120.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.11ms. Allocated memory is still 163.6MB. Free memory was 120.8MB in the beginning and 118.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 773.81ms. Allocated memory is still 163.6MB. Free memory was 118.7MB in the beginning and 125.5MB in the end (delta: -6.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2575.64ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 124.7MB in the beginning and 138.7MB in the end (delta: -14.0MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. * Witness Printer took 5.37ms. Allocated memory is still 197.1MB. Free memory is still 138.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 88. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed long int var_1_1 = -4; [L23] unsigned char var_1_2 = 0; [L24] unsigned char var_1_3 = 0; [L25] signed short int var_1_7 = 5; [L26] unsigned long int var_1_9 = 256; [L27] signed char var_1_10 = 10; [L28] signed char var_1_11 = 4; [L29] float var_1_12 = 32.4; [L30] float var_1_13 = 1.2; [L31] float var_1_14 = 64.8; [L32] float var_1_15 = 127.3; [L33] float var_1_16 = 4.02; [L34] signed char var_1_17 = -32; [L35] unsigned long int last_1_var_1_9 = 256; [L92] isInitial = 1 [L93] FCALL initially() [L94] int k_loop; [L95] k_loop = 0 VAL [isInitial=1, k_loop=0, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=0, var_1_7=5, var_1_9=256] [L95] COND TRUE k_loop < 1 [L96] CALL updateLastVariables() [L85] last_1_var_1_9 = var_1_9 [L96] RET updateLastVariables() [L97] CALL updateVariables() [L59] var_1_2 = __VERIFIER_nondet_uchar() [L60] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_3=0, var_1_7=5, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_3=0, var_1_7=5, var_1_9=256] [L60] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_3=0, var_1_7=5, var_1_9=256] [L61] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=0, var_1_7=5, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=0, var_1_7=5, var_1_9=256] [L61] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=0, var_1_7=5, var_1_9=256] [L62] var_1_3 = __VERIFIER_nondet_uchar() [L63] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_7=5, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_7=5, var_1_9=256] [L63] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_7=5, var_1_9=256] [L64] CALL assume_abort_if_not(var_1_3 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=5, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=5, var_1_9=256] [L64] RET assume_abort_if_not(var_1_3 <= 1) VAL [isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=5, var_1_9=256] [L65] var_1_7 = __VERIFIER_nondet_short() [L66] CALL assume_abort_if_not(var_1_7 >= -32768) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=-1, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=-1, var_1_9=256] [L66] RET assume_abort_if_not(var_1_7 >= -32768) VAL [isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=-1, var_1_9=256] [L67] CALL assume_abort_if_not(var_1_7 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=-1, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=-1, var_1_9=256] [L67] RET assume_abort_if_not(var_1_7 <= 32767) VAL [isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=-1, var_1_9=256] [L68] CALL assume_abort_if_not(var_1_7 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=-1, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=-1, var_1_9=256] [L68] RET assume_abort_if_not(var_1_7 != 0) VAL [isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=-1, var_1_9=256] [L69] var_1_10 = __VERIFIER_nondet_char() [L70] CALL assume_abort_if_not(var_1_10 >= -1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=-1, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=-1, var_1_9=256] [L70] RET assume_abort_if_not(var_1_10 >= -1) VAL [isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=-1, var_1_9=256] [L71] CALL assume_abort_if_not(var_1_10 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=-1, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=-1, var_1_9=256] [L71] RET assume_abort_if_not(var_1_10 <= 127) VAL [isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=-1, var_1_9=256] [L72] var_1_11 = __VERIFIER_nondet_char() [L73] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=-1, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=-1, var_1_9=256] [L73] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=-1, var_1_9=256] [L74] CALL assume_abort_if_not(var_1_11 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=-1, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=-1, var_1_9=256] [L74] RET assume_abort_if_not(var_1_11 <= 127) VAL [isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=-1, var_1_9=256] [L75] var_1_13 = __VERIFIER_nondet_float() [L76] CALL assume_abort_if_not((var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=162/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=-1, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=162/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=-1, var_1_9=256] [L76] RET assume_abort_if_not((var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=162/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=-1, var_1_9=256] [L77] var_1_14 = __VERIFIER_nondet_float() [L78] CALL assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854765600e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=162/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=-1, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=162/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=-1, var_1_9=256] [L78] RET assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854765600e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=162/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=-1, var_1_9=256] [L79] var_1_15 = __VERIFIER_nondet_float() [L80] CALL assume_abort_if_not((var_1_15 >= -922337.2036854765600e+13F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=162/5, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=-1, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=162/5, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=-1, var_1_9=256] [L80] RET assume_abort_if_not((var_1_15 >= -922337.2036854765600e+13F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=162/5, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=-1, var_1_9=256] [L81] var_1_16 = __VERIFIER_nondet_float() [L82] CALL assume_abort_if_not((var_1_16 >= -922337.2036854765600e+13F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 9223372.036854765600e+12F && var_1_16 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=162/5, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=-1, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=162/5, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=-1, var_1_9=256] [L82] RET assume_abort_if_not((var_1_16 >= -922337.2036854765600e+13F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 9223372.036854765600e+12F && var_1_16 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=162/5, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=-1, var_1_9=256] [L97] RET updateVariables() [L98] CALL step() [L39] COND TRUE (var_1_10 - var_1_11) >= last_1_var_1_9 [L40] var_1_9 = (var_1_11 + 2u) VAL [isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=162/5, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=-1, var_1_9=2] [L42] COND FALSE !(\read(var_1_2)) [L45] var_1_12 = ((((var_1_15) > (var_1_16)) ? (var_1_15) : (var_1_16))) VAL [isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=2, var_1_15=2, var_1_16=0, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=-1, var_1_9=2] [L47] var_1_17 = -4 VAL [isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=2, var_1_15=2, var_1_16=0, var_1_17=-4, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=-1, var_1_9=2] [L48] COND FALSE !(\read(var_1_2)) VAL [isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=2, var_1_15=2, var_1_16=0, var_1_17=-4, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=-1, var_1_9=2] [L98] RET step() [L99] CALL, EXPR property() [L88-L89] return (((var_1_2 ? ((var_1_3 && (var_1_12 <= (- 63.9f))) ? ((var_1_12 >= var_1_12) ? (((var_1_9 / var_1_7) <= var_1_9) ? (var_1_1 == ((signed long int) var_1_9)) : 1) : 1) : 1) : 1) && (((var_1_10 - var_1_11) >= last_1_var_1_9) ? (var_1_9 == ((unsigned long int) (var_1_11 + 2u))) : 1)) && (var_1_2 ? (var_1_12 == ((float) ((((((((var_1_13 - var_1_14) < 0 ) ? -(var_1_13 - var_1_14) : (var_1_13 - var_1_14)))) < (((((var_1_15) < (var_1_16)) ? (var_1_15) : (var_1_16))))) ? (((((var_1_13 - var_1_14) < 0 ) ? -(var_1_13 - var_1_14) : (var_1_13 - var_1_14)))) : (((((var_1_15) < (var_1_16)) ? (var_1_15) : (var_1_16)))))))) : (var_1_12 == ((float) ((((var_1_15) > (var_1_16)) ? (var_1_15) : (var_1_16))))))) && (var_1_17 == ((signed char) -4)) ; [L99] RET, EXPR property() [L99] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=2, var_1_15=2, var_1_16=0, var_1_17=-4, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=-1, var_1_9=2] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=2, var_1_15=2, var_1_16=0, var_1_17=-4, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=-1, var_1_9=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 44 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.4s, OverallIterations: 3, TraceHistogramMax: 15, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 166 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 47 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 21 IncrementalHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 119 mSDtfsCounter, 21 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 184 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 2 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 372 NumberOfCodeBlocks, 372 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 184 ConstructedInterpolants, 0 QuantifiedInterpolants, 194 SizeOfPredicates, 1 NumberOfNonLiveVariables, 452 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 840/840 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 11:49:00,129 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9b08c7-b3fd-4332-b662-040801a2d75a/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9b08c7-b3fd-4332-b662-040801a2d75a/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9b08c7-b3fd-4332-b662-040801a2d75a/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_ea9b08c7-b3fd-4332-b662-040801a2d75a/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9b08c7-b3fd-4332-b662-040801a2d75a/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-40.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9b08c7-b3fd-4332-b662-040801a2d75a/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_ea9b08c7-b3fd-4332-b662-040801a2d75a/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 08c7e61f5459d5fc0a0cd65e2d0a5eb61e01ee4aec3eee7dfe70e8ab0a3470e9 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:49:03,092 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:49:03,209 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9b08c7-b3fd-4332-b662-040801a2d75a/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-26 11:49:03,215 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:49:03,216 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:49:03,242 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:49:03,243 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:49:03,244 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:49:03,245 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:49:03,245 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:49:03,246 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:49:03,247 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:49:03,248 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:49:03,248 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:49:03,249 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:49:03,250 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:49:03,250 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:49:03,251 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:49:03,251 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:49:03,252 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:49:03,253 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:49:03,253 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:49:03,254 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:49:03,254 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 11:49:03,255 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-26 11:49:03,255 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-26 11:49:03,256 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:49:03,256 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:49:03,257 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:49:03,257 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:49:03,258 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:49:03,258 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:49:03,259 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:49:03,259 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:49:03,260 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:49:03,260 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:49:03,260 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:49:03,261 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-26 11:49:03,261 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-26 11:49:03,262 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:49:03,262 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:49:03,263 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:49:03,263 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:49:03,263 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:49:03,264 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-26 11:49:03,264 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_ea9b08c7-b3fd-4332-b662-040801a2d75a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9b08c7-b3fd-4332-b662-040801a2d75a/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08c7e61f5459d5fc0a0cd65e2d0a5eb61e01ee4aec3eee7dfe70e8ab0a3470e9 [2023-11-26 11:49:03,694 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:49:03,720 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:49:03,723 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:49:03,725 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:49:03,725 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:49:03,727 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9b08c7-b3fd-4332-b662-040801a2d75a/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-40.i [2023-11-26 11:49:06,971 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:49:07,304 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:49:07,305 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9b08c7-b3fd-4332-b662-040801a2d75a/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-40.i [2023-11-26 11:49:07,315 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9b08c7-b3fd-4332-b662-040801a2d75a/bin/uautomizer-verify-VRDe98Ueme/data/41b470512/548c7d715da04b16ab7b9f69621ceb4d/FLAGecaad22c1 [2023-11-26 11:49:07,334 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9b08c7-b3fd-4332-b662-040801a2d75a/bin/uautomizer-verify-VRDe98Ueme/data/41b470512/548c7d715da04b16ab7b9f69621ceb4d [2023-11-26 11:49:07,341 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:49:07,343 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:49:07,347 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:49:07,347 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:49:07,353 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:49:07,354 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:49:07" (1/1) ... [2023-11-26 11:49:07,355 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cccc544 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:07, skipping insertion in model container [2023-11-26 11:49:07,356 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:49:07" (1/1) ... [2023-11-26 11:49:07,404 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:49:07,619 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_ea9b08c7-b3fd-4332-b662-040801a2d75a/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-40.i[915,928] [2023-11-26 11:49:07,675 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:49:07,707 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:49:07,731 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_ea9b08c7-b3fd-4332-b662-040801a2d75a/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-40.i[915,928] [2023-11-26 11:49:07,771 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:49:07,795 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:49:07,796 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:07 WrapperNode [2023-11-26 11:49:07,796 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:49:07,798 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:49:07,798 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:49:07,798 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:49:07,807 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:07" (1/1) ... [2023-11-26 11:49:07,835 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:07" (1/1) ... [2023-11-26 11:49:07,882 INFO L138 Inliner]: procedures = 27, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 107 [2023-11-26 11:49:07,885 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:49:07,887 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:49:07,887 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:49:07,887 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:49:07,901 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:07" (1/1) ... [2023-11-26 11:49:07,901 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:07" (1/1) ... [2023-11-26 11:49:07,919 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:07" (1/1) ... [2023-11-26 11:49:07,948 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 11:49:07,949 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:07" (1/1) ... [2023-11-26 11:49:07,949 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:07" (1/1) ... [2023-11-26 11:49:07,963 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:07" (1/1) ... [2023-11-26 11:49:07,967 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:07" (1/1) ... [2023-11-26 11:49:07,978 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:07" (1/1) ... [2023-11-26 11:49:07,980 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:07" (1/1) ... [2023-11-26 11:49:07,992 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:49:07,993 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:49:07,993 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:49:07,993 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:49:07,994 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:07" (1/1) ... [2023-11-26 11:49:08,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:49:08,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9b08c7-b3fd-4332-b662-040801a2d75a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:49:08,035 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9b08c7-b3fd-4332-b662-040801a2d75a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:49:08,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9b08c7-b3fd-4332-b662-040801a2d75a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:49:08,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:49:08,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-26 11:49:08,113 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 11:49:08,113 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 11:49:08,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:49:08,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:49:08,255 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:49:08,259 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:49:09,032 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:49:09,077 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:49:09,078 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 11:49:09,079 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:49:09 BoogieIcfgContainer [2023-11-26 11:49:09,079 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:49:09,082 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:49:09,082 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:49:09,086 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:49:09,087 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:49:07" (1/3) ... [2023-11-26 11:49:09,087 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e973e8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:49:09, skipping insertion in model container [2023-11-26 11:49:09,088 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:07" (2/3) ... [2023-11-26 11:49:09,088 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e973e8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:49:09, skipping insertion in model container [2023-11-26 11:49:09,089 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:49:09" (3/3) ... [2023-11-26 11:49:09,090 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-40.i [2023-11-26 11:49:09,115 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:49:09,115 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 11:49:09,181 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:49:09,192 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;@4bdc89cc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:49:09,194 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 11:49:09,200 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 27 states have internal predecessors, (37), 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 11:49:09,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-26 11:49:09,218 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:49:09,219 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:49:09,220 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:49:09,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:09,228 INFO L85 PathProgramCache]: Analyzing trace with hash 639431284, now seen corresponding path program 1 times [2023-11-26 11:49:09,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 11:49:09,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1622479614] [2023-11-26 11:49:09,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:09,251 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 11:49:09,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9b08c7-b3fd-4332-b662-040801a2d75a/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 11:49:09,257 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9b08c7-b3fd-4332-b662-040801a2d75a/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 11:49:09,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9b08c7-b3fd-4332-b662-040801a2d75a/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 11:49:09,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:09,670 INFO L262 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-26 11:49:09,681 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:49:09,763 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 188 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2023-11-26 11:49:09,763 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:49:09,764 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 11:49:09,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1622479614] [2023-11-26 11:49:09,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1622479614] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:49:09,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:49:09,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:49:09,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902044836] [2023-11-26 11:49:09,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:49:09,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 11:49:09,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 11:49:09,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 11:49:09,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:49:09,813 INFO L87 Difference]: Start difference. First operand has 44 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 27 states have internal predecessors, (37), 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 12.5) internal successors, (25), 2 states have internal predecessors, (25), 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 11:49:09,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:49:09,999 INFO L93 Difference]: Finished difference Result 87 states and 148 transitions. [2023-11-26 11:49:10,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 11:49:10,003 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (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 93 [2023-11-26 11:49:10,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:49:10,012 INFO L225 Difference]: With dead ends: 87 [2023-11-26 11:49:10,013 INFO L226 Difference]: Without dead ends: 42 [2023-11-26 11:49:10,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 92 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 11:49:10,024 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:49:10,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 59 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 11:49:10,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-11-26 11:49:10,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2023-11-26 11:49:10,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 25 states have (on average 1.28) internal successors, (32), 25 states have internal predecessors, (32), 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 11:49:10,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 62 transitions. [2023-11-26 11:49:10,074 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 62 transitions. Word has length 93 [2023-11-26 11:49:10,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:49:10,074 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 62 transitions. [2023-11-26 11:49:10,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (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 11:49:10,075 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 62 transitions. [2023-11-26 11:49:10,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-26 11:49:10,081 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:49:10,081 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:49:10,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9b08c7-b3fd-4332-b662-040801a2d75a/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 11:49:10,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9b08c7-b3fd-4332-b662-040801a2d75a/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 11:49:10,288 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:49:10,289 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:10,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1686083522, now seen corresponding path program 1 times [2023-11-26 11:49:10,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 11:49:10,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1057683817] [2023-11-26 11:49:10,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:10,291 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 11:49:10,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9b08c7-b3fd-4332-b662-040801a2d75a/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 11:49:10,292 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9b08c7-b3fd-4332-b662-040801a2d75a/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 11:49:10,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9b08c7-b3fd-4332-b662-040801a2d75a/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 11:49:10,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:10,682 INFO L262 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 11:49:10,697 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:49:10,758 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-26 11:49:10,759 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:49:10,759 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 11:49:10,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1057683817] [2023-11-26 11:49:10,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1057683817] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:49:10,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:49:10,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:49:10,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640354493] [2023-11-26 11:49:10,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:49:10,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:49:10,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 11:49:10,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:49:10,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:49:10,765 INFO L87 Difference]: Start difference. First operand 42 states and 62 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-26 11:49:10,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:49:10,991 INFO L93 Difference]: Finished difference Result 91 states and 132 transitions. [2023-11-26 11:49:10,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:49:10,993 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 93 [2023-11-26 11:49:10,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:49:10,996 INFO L225 Difference]: With dead ends: 91 [2023-11-26 11:49:10,996 INFO L226 Difference]: Without dead ends: 50 [2023-11-26 11:49:10,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:49:10,999 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 12 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:49:11,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 106 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 11:49:11,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-11-26 11:49:11,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 44. [2023-11-26 11:49:11,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 27 states have internal predecessors, (34), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-26 11:49:11,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 64 transitions. [2023-11-26 11:49:11,015 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 64 transitions. Word has length 93 [2023-11-26 11:49:11,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:49:11,018 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 64 transitions. [2023-11-26 11:49:11,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-26 11:49:11,018 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 64 transitions. [2023-11-26 11:49:11,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-26 11:49:11,023 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:49:11,024 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:49:11,041 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9b08c7-b3fd-4332-b662-040801a2d75a/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)] Forceful destruction successful, exit code 0 [2023-11-26 11:49:11,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9b08c7-b3fd-4332-b662-040801a2d75a/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 11:49:11,235 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:49:11,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:11,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1628825220, now seen corresponding path program 1 times [2023-11-26 11:49:11,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 11:49:11,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [153258109] [2023-11-26 11:49:11,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:11,238 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 11:49:11,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9b08c7-b3fd-4332-b662-040801a2d75a/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 11:49:11,239 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9b08c7-b3fd-4332-b662-040801a2d75a/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 11:49:11,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9b08c7-b3fd-4332-b662-040801a2d75a/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 (4)] Waiting until timeout for monitored process [2023-11-26 11:49:11,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:11,670 INFO L262 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-26 11:49:11,678 INFO L285 TraceCheckSpWp]: Computing forward predicates...