./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-79.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_e8d65f55-f7eb-4f56-b62d-6c713e9de446/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d65f55-f7eb-4f56-b62d-6c713e9de446/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_e8d65f55-f7eb-4f56-b62d-6c713e9de446/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d65f55-f7eb-4f56-b62d-6c713e9de446/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-79.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d65f55-f7eb-4f56-b62d-6c713e9de446/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_e8d65f55-f7eb-4f56-b62d-6c713e9de446/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 e506e1f7b38bbd8fe6b4b58e9d148d1ba7590120c1d7e1a0e5beae3abdd695ad --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:42:48,822 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:42:48,937 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d65f55-f7eb-4f56-b62d-6c713e9de446/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-26 10:42:48,944 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:42:48,945 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:42:48,985 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:42:48,986 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:42:48,987 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:42:48,988 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 10:42:48,993 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 10:42:48,994 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:42:48,995 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:42:48,996 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:42:48,998 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:42:48,998 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:42:48,999 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:42:48,999 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:42:49,000 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:42:49,001 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:42:49,001 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:42:49,002 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:42:49,005 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:42:49,006 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:42:49,006 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:42:49,007 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:42:49,007 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:42:49,008 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:42:49,009 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:42:49,009 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:42:49,010 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 10:42:49,011 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:42:49,011 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:42:49,012 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:42:49,012 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:42:49,012 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:42:49,013 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:42:49,013 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 10:42:49,013 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:42:49,014 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:42:49,014 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:42:49,014 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:42:49,015 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:42:49,015 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_e8d65f55-f7eb-4f56-b62d-6c713e9de446/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d65f55-f7eb-4f56-b62d-6c713e9de446/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e506e1f7b38bbd8fe6b4b58e9d148d1ba7590120c1d7e1a0e5beae3abdd695ad [2023-11-26 10:42:49,357 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:42:49,381 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:42:49,385 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:42:49,387 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:42:49,387 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:42:49,389 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d65f55-f7eb-4f56-b62d-6c713e9de446/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-79.i [2023-11-26 10:42:52,503 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:42:52,723 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:42:52,723 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d65f55-f7eb-4f56-b62d-6c713e9de446/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-79.i [2023-11-26 10:42:52,736 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d65f55-f7eb-4f56-b62d-6c713e9de446/bin/uautomizer-verify-VRDe98Ueme/data/6a3b4d97e/2ba871f931bd4144b2c5e3bf22b70b29/FLAG569c694fc [2023-11-26 10:42:52,752 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d65f55-f7eb-4f56-b62d-6c713e9de446/bin/uautomizer-verify-VRDe98Ueme/data/6a3b4d97e/2ba871f931bd4144b2c5e3bf22b70b29 [2023-11-26 10:42:52,755 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:42:52,757 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:42:52,759 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:42:52,759 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:42:52,765 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:42:52,766 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:42:52" (1/1) ... [2023-11-26 10:42:52,767 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49ade23e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:52, skipping insertion in model container [2023-11-26 10:42:52,768 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:42:52" (1/1) ... [2023-11-26 10:42:52,796 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:42:52,973 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_e8d65f55-f7eb-4f56-b62d-6c713e9de446/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-79.i[915,928] [2023-11-26 10:42:53,013 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:42:53,039 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:42:53,054 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_e8d65f55-f7eb-4f56-b62d-6c713e9de446/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-79.i[915,928] [2023-11-26 10:42:53,104 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:42:53,128 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:42:53,129 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:53 WrapperNode [2023-11-26 10:42:53,129 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:42:53,131 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:42:53,131 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:42:53,132 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:42:53,140 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:53" (1/1) ... [2023-11-26 10:42:53,165 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:53" (1/1) ... [2023-11-26 10:42:53,212 INFO L138 Inliner]: procedures = 26, calls = 26, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 103 [2023-11-26 10:42:53,214 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:42:53,215 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:42:53,215 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:42:53,215 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:42:53,228 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:53" (1/1) ... [2023-11-26 10:42:53,228 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:53" (1/1) ... [2023-11-26 10:42:53,234 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:53" (1/1) ... [2023-11-26 10:42:53,266 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 10:42:53,268 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:53" (1/1) ... [2023-11-26 10:42:53,269 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:53" (1/1) ... [2023-11-26 10:42:53,279 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:53" (1/1) ... [2023-11-26 10:42:53,291 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:53" (1/1) ... [2023-11-26 10:42:53,292 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:53" (1/1) ... [2023-11-26 10:42:53,298 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:53" (1/1) ... [2023-11-26 10:42:53,304 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:42:53,306 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:42:53,306 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:42:53,306 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:42:53,312 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:53" (1/1) ... [2023-11-26 10:42:53,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:42:53,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d65f55-f7eb-4f56-b62d-6c713e9de446/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:53,342 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d65f55-f7eb-4f56-b62d-6c713e9de446/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:42:53,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d65f55-f7eb-4f56-b62d-6c713e9de446/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:42:53,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:42:53,386 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 10:42:53,386 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 10:42:53,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 10:42:53,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:42:53,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:42:53,468 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:42:53,471 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:42:53,702 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:42:53,764 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:42:53,764 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 10:42:53,765 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:42:53 BoogieIcfgContainer [2023-11-26 10:42:53,765 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:42:53,768 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:42:53,768 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:42:53,772 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:42:53,772 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:42:52" (1/3) ... [2023-11-26 10:42:53,773 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@201c533 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:42:53, skipping insertion in model container [2023-11-26 10:42:53,773 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:53" (2/3) ... [2023-11-26 10:42:53,774 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@201c533 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:42:53, skipping insertion in model container [2023-11-26 10:42:53,774 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:42:53" (3/3) ... [2023-11-26 10:42:53,775 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-79.i [2023-11-26 10:42:53,801 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:42:53,801 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 10:42:53,847 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:42:53,854 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;@524c46a0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:42:53,854 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 10:42:53,857 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 25 states have (on average 1.44) internal successors, (36), 26 states have internal predecessors, (36), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-26 10:42:53,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-26 10:42:53,868 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:42:53,868 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:42:53,869 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:42:53,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:53,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1703742509, now seen corresponding path program 1 times [2023-11-26 10:42:53,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:53,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205495180] [2023-11-26 10:42:53,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:53,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:54,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:54,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 10:42:54,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:54,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-26 10:42:54,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:54,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 10:42:54,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:54,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-26 10:42:54,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:54,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-26 10:42:54,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:54,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-26 10:42:54,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:54,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-26 10:42:54,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:54,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-26 10:42:54,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:54,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-26 10:42:54,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:54,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-26 10:42:54,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:54,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-26 10:42:54,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:54,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-26 10:42:54,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:54,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-26 10:42:54,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:54,320 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-26 10:42:54,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:54,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205495180] [2023-11-26 10:42:54,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205495180] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:42:54,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:42:54,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:42:54,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912091614] [2023-11-26 10:42:54,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:42:54,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 10:42:54,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:54,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 10:42:54,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 10:42:54,363 INFO L87 Difference]: Start difference. First operand has 41 states, 25 states have (on average 1.44) internal successors, (36), 26 states have internal predecessors, (36), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-26 10:42:54,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:42:54,402 INFO L93 Difference]: Finished difference Result 79 states and 135 transitions. [2023-11-26 10:42:54,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 10:42:54,405 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 82 [2023-11-26 10:42:54,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:42:54,413 INFO L225 Difference]: With dead ends: 79 [2023-11-26 10:42:54,419 INFO L226 Difference]: Without dead ends: 39 [2023-11-26 10:42:54,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 41 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 10:42:54,427 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:42:54,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 54 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:42:54,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-11-26 10:42:54,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2023-11-26 10:42:54,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 24 states have internal predecessors, (31), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-26 10:42:54,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 57 transitions. [2023-11-26 10:42:54,478 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 57 transitions. Word has length 82 [2023-11-26 10:42:54,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:42:54,479 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 57 transitions. [2023-11-26 10:42:54,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-26 10:42:54,480 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 57 transitions. [2023-11-26 10:42:54,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-26 10:42:54,484 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:42:54,485 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:42:54,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 10:42:54,485 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:42:54,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:54,486 INFO L85 PathProgramCache]: Analyzing trace with hash -2025109917, now seen corresponding path program 1 times [2023-11-26 10:42:54,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:54,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526906470] [2023-11-26 10:42:54,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:54,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:54,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:54,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 10:42:54,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:54,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-26 10:42:54,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:54,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 10:42:54,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:54,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-26 10:42:54,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:54,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-26 10:42:54,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:54,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-26 10:42:54,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:54,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-26 10:42:54,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:54,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-26 10:42:54,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:54,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-26 10:42:54,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:54,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-26 10:42:54,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:54,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-26 10:42:54,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:54,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-26 10:42:54,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:54,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-26 10:42:54,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:54,808 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-26 10:42:54,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:54,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526906470] [2023-11-26 10:42:54,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526906470] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:42:54,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:42:54,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:42:54,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675290851] [2023-11-26 10:42:54,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:42:54,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:42:54,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:54,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:42:54,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:42:54,814 INFO L87 Difference]: Start difference. First operand 39 states and 57 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-11-26 10:42:54,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:42:54,856 INFO L93 Difference]: Finished difference Result 86 states and 125 transitions. [2023-11-26 10:42:54,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:42:54,857 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 82 [2023-11-26 10:42:54,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:42:54,862 INFO L225 Difference]: With dead ends: 86 [2023-11-26 10:42:54,863 INFO L226 Difference]: Without dead ends: 48 [2023-11-26 10:42:54,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 28 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 10:42:54,867 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 11 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:42:54,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 98 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:42:54,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-11-26 10:42:54,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 42. [2023-11-26 10:42:54,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 27 states have internal predecessors, (36), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-26 10:42:54,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 62 transitions. [2023-11-26 10:42:54,894 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 62 transitions. Word has length 82 [2023-11-26 10:42:54,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:42:54,897 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 62 transitions. [2023-11-26 10:42:54,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-11-26 10:42:54,897 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 62 transitions. [2023-11-26 10:42:54,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-26 10:42:54,905 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:42:54,905 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:42:54,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 10:42:54,906 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:42:54,906 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:54,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1636828383, now seen corresponding path program 1 times [2023-11-26 10:42:54,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:54,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233312110] [2023-11-26 10:42:54,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:54,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:55,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:55,045 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:42:55,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:55,122 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:42:55,122 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 10:42:55,123 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-26 10:42:55,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 10:42:55,128 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-26 10:42:55,132 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 10:42:55,188 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 10:42:55 BoogieIcfgContainer [2023-11-26 10:42:55,188 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 10:42:55,189 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 10:42:55,189 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 10:42:55,189 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 10:42:55,190 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:42:53" (3/4) ... [2023-11-26 10:42:55,192 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 10:42:55,193 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 10:42:55,194 INFO L158 Benchmark]: Toolchain (without parser) took 2436.55ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 115.5MB in the beginning and 103.5MB in the end (delta: 11.9MB). Peak memory consumption was 48.6MB. Max. memory is 16.1GB. [2023-11-26 10:42:55,194 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 161.5MB. Free memory is still 133.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:42:55,195 INFO L158 Benchmark]: CACSL2BoogieTranslator took 370.83ms. Allocated memory is still 161.5MB. Free memory was 115.5MB in the beginning and 103.4MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-26 10:42:55,195 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.14ms. Allocated memory is still 161.5MB. Free memory was 102.9MB in the beginning and 101.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:42:55,196 INFO L158 Benchmark]: Boogie Preprocessor took 89.72ms. Allocated memory is still 161.5MB. Free memory was 101.3MB in the beginning and 98.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:42:55,196 INFO L158 Benchmark]: RCFGBuilder took 459.87ms. Allocated memory is still 161.5MB. Free memory was 98.7MB in the beginning and 82.9MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-26 10:42:55,197 INFO L158 Benchmark]: TraceAbstraction took 1419.89ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 82.4MB in the beginning and 103.5MB in the end (delta: -21.2MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. [2023-11-26 10:42:55,198 INFO L158 Benchmark]: Witness Printer took 4.23ms. Allocated memory is still 195.0MB. Free memory is still 103.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:42:55,200 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 161.5MB. Free memory is still 133.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 370.83ms. Allocated memory is still 161.5MB. Free memory was 115.5MB in the beginning and 103.4MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.14ms. Allocated memory is still 161.5MB. Free memory was 102.9MB in the beginning and 101.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 89.72ms. Allocated memory is still 161.5MB. Free memory was 101.3MB in the beginning and 98.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 459.87ms. Allocated memory is still 161.5MB. Free memory was 98.7MB in the beginning and 82.9MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1419.89ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 82.4MB in the beginning and 103.5MB in the end (delta: -21.2MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. * Witness Printer took 4.23ms. Allocated memory is still 195.0MB. Free memory is still 103.5MB. 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 90, overapproximation of someBinaryDOUBLEComparisonOperation at line 90. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = -16; [L23] unsigned char var_1_2 = 1; [L24] signed char var_1_3 = 0; [L25] signed char var_1_4 = 64; [L26] signed char var_1_5 = 64; [L27] unsigned short int var_1_6 = 25; [L28] float var_1_7 = 256.4; [L29] double var_1_10 = 9999999999.515; [L30] float var_1_11 = 8.5; [L31] float var_1_12 = 2.5; [L32] double var_1_13 = 15.8; [L33] double var_1_14 = 25.8; [L94] isInitial = 1 [L95] FCALL initially() [L96] COND TRUE 1 [L97] FCALL updateLastVariables() [L98] CALL updateVariables() [L64] var_1_2 = __VERIFIER_nondet_uchar() [L65] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1999999999903/200, var_1_11=17/2, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_3=0, var_1_4=64, var_1_5=64, var_1_6=25, var_1_7=1282/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1999999999903/200, var_1_11=17/2, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_3=0, var_1_4=64, var_1_5=64, var_1_6=25, var_1_7=1282/5] [L65] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=1999999999903/200, var_1_11=17/2, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_3=0, var_1_4=64, var_1_5=64, var_1_6=25, var_1_7=1282/5] [L66] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=1999999999903/200, var_1_11=17/2, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=0, var_1_4=64, var_1_5=64, var_1_6=25, var_1_7=1282/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1999999999903/200, var_1_11=17/2, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=0, var_1_4=64, var_1_5=64, var_1_6=25, var_1_7=1282/5] [L66] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_10=1999999999903/200, var_1_11=17/2, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=0, var_1_4=64, var_1_5=64, var_1_6=25, var_1_7=1282/5] [L67] var_1_3 = __VERIFIER_nondet_char() [L68] CALL assume_abort_if_not(var_1_3 >= -63) VAL [\old(cond)=1, isInitial=1, var_1_10=1999999999903/200, var_1_11=17/2, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=64, var_1_5=64, var_1_6=25, var_1_7=1282/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1999999999903/200, var_1_11=17/2, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=64, var_1_5=64, var_1_6=25, var_1_7=1282/5] [L68] RET assume_abort_if_not(var_1_3 >= -63) VAL [isInitial=1, var_1_10=1999999999903/200, var_1_11=17/2, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=64, var_1_5=64, var_1_6=25, var_1_7=1282/5] [L69] CALL assume_abort_if_not(var_1_3 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=1999999999903/200, var_1_11=17/2, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=64, var_1_5=64, var_1_6=25, var_1_7=1282/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1999999999903/200, var_1_11=17/2, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=64, var_1_5=64, var_1_6=25, var_1_7=1282/5] [L69] RET assume_abort_if_not(var_1_3 <= 63) VAL [isInitial=1, var_1_10=1999999999903/200, var_1_11=17/2, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=64, var_1_5=64, var_1_6=25, var_1_7=1282/5] [L70] var_1_4 = __VERIFIER_nondet_char() [L71] CALL assume_abort_if_not(var_1_4 >= -1) VAL [\old(cond)=1, isInitial=1, var_1_10=1999999999903/200, var_1_11=17/2, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=64, var_1_6=25, var_1_7=1282/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1999999999903/200, var_1_11=17/2, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=64, var_1_6=25, var_1_7=1282/5] [L71] RET assume_abort_if_not(var_1_4 >= -1) VAL [isInitial=1, var_1_10=1999999999903/200, var_1_11=17/2, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=64, var_1_6=25, var_1_7=1282/5] [L72] CALL assume_abort_if_not(var_1_4 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=1999999999903/200, var_1_11=17/2, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=64, var_1_6=25, var_1_7=1282/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1999999999903/200, var_1_11=17/2, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=64, var_1_6=25, var_1_7=1282/5] [L72] RET assume_abort_if_not(var_1_4 <= 126) VAL [isInitial=1, var_1_10=1999999999903/200, var_1_11=17/2, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=64, var_1_6=25, var_1_7=1282/5] [L73] var_1_5 = __VERIFIER_nondet_char() [L74] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1999999999903/200, var_1_11=17/2, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=0, var_1_6=25, var_1_7=1282/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1999999999903/200, var_1_11=17/2, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=0, var_1_6=25, var_1_7=1282/5] [L74] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=1999999999903/200, var_1_11=17/2, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=0, var_1_6=25, var_1_7=1282/5] [L75] CALL assume_abort_if_not(var_1_5 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=1999999999903/200, var_1_11=17/2, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=0, var_1_6=25, var_1_7=1282/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1999999999903/200, var_1_11=17/2, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=0, var_1_6=25, var_1_7=1282/5] [L75] RET assume_abort_if_not(var_1_5 <= 126) VAL [isInitial=1, var_1_10=1999999999903/200, var_1_11=17/2, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=0, var_1_6=25, var_1_7=1282/5] [L76] var_1_7 = __VERIFIER_nondet_float() [L77] CALL assume_abort_if_not((var_1_7 >= 0.0F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854776000e+12F && var_1_7 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1999999999903/200, var_1_11=17/2, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=0, var_1_6=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1999999999903/200, var_1_11=17/2, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=0, var_1_6=25] [L77] RET assume_abort_if_not((var_1_7 >= 0.0F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854776000e+12F && var_1_7 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1999999999903/200, var_1_11=17/2, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=0, var_1_6=25] [L78] var_1_11 = __VERIFIER_nondet_float() [L79] CALL assume_abort_if_not((var_1_11 >= 0.0F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854776000e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1999999999903/200, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=0, var_1_6=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1999999999903/200, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=0, var_1_6=25] [L79] RET assume_abort_if_not((var_1_11 >= 0.0F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854776000e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1999999999903/200, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=0, var_1_6=25] [L80] var_1_12 = __VERIFIER_nondet_float() [L81] CALL assume_abort_if_not((var_1_12 >= 0.0F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854776000e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1999999999903/200, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=0, var_1_6=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1999999999903/200, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=0, var_1_6=25] [L81] RET assume_abort_if_not((var_1_12 >= 0.0F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854776000e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1999999999903/200, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=0, var_1_6=25] [L82] var_1_13 = __VERIFIER_nondet_double() [L83] 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, var_1_10=1999999999903/200, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=0, var_1_6=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1999999999903/200, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=0, var_1_6=25] [L83] 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, var_1_10=1999999999903/200, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=0, var_1_6=25] [L84] var_1_14 = __VERIFIER_nondet_double() [L85] 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, var_1_10=1999999999903/200, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=0, var_1_6=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1999999999903/200, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=0, var_1_6=25] [L85] 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, var_1_10=1999999999903/200, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=0, var_1_6=25] [L98] RET updateVariables() [L99] CALL step() [L37] COND FALSE !(! var_1_2) VAL [isInitial=1, var_1_10=1999999999903/200, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=0, var_1_6=25] [L44] COND FALSE !(var_1_7 < (var_1_11 - var_1_12)) [L51] var_1_10 = var_1_14 VAL [isInitial=1, var_1_10=10000000004, var_1_14=10000000004, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=0, var_1_6=25] [L53] COND TRUE \read(var_1_2) VAL [isInitial=1, var_1_10=10000000004, var_1_14=10000000004, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=0, var_1_6=25] [L54] COND TRUE (var_1_7 - ((((var_1_10) < 0 ) ? -(var_1_10) : (var_1_10)))) <= var_1_10 [L55] var_1_6 = ((((256) < 0 ) ? -(256) : (256))) VAL [isInitial=1, var_1_10=10000000004, var_1_14=10000000004, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=0, var_1_6=256] [L99] RET step() [L100] CALL, EXPR property() [L90-L91] return (((! var_1_2) ? ((! var_1_2) ? (var_1_1 == ((signed char) (var_1_3 + -32))) : (var_1_1 == ((signed char) (var_1_4 - var_1_5)))) : 1) && (var_1_2 ? (((var_1_7 - ((((var_1_10) < 0 ) ? -(var_1_10) : (var_1_10)))) <= var_1_10) ? (var_1_6 == ((unsigned short int) ((((256) < 0 ) ? -(256) : (256))))) : (var_1_6 == ((unsigned short int) var_1_5))) : (var_1_6 == ((unsigned short int) 16)))) && ((var_1_7 < (var_1_11 - var_1_12)) ? (((var_1_7 / 7.2) <= var_1_11) ? (var_1_10 == ((double) (var_1_13 - var_1_14))) : (var_1_10 == ((double) var_1_13))) : (var_1_10 == ((double) var_1_14))) ; [L100] RET, EXPR property() [L100] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=10000000004, var_1_14=10000000004, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=0, var_1_6=256] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=10000000004, var_1_14=10000000004, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=0, var_1_6=256] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 41 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 13, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 152 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 45 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13 IncrementalHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 107 mSDtfsCounter, 13 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=2, 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: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 247 NumberOfCodeBlocks, 247 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 162 ConstructedInterpolants, 0 QuantifiedInterpolants, 176 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 624/624 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 10:42:55,220 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d65f55-f7eb-4f56-b62d-6c713e9de446/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d65f55-f7eb-4f56-b62d-6c713e9de446/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d65f55-f7eb-4f56-b62d-6c713e9de446/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_e8d65f55-f7eb-4f56-b62d-6c713e9de446/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d65f55-f7eb-4f56-b62d-6c713e9de446/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-79.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d65f55-f7eb-4f56-b62d-6c713e9de446/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_e8d65f55-f7eb-4f56-b62d-6c713e9de446/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 e506e1f7b38bbd8fe6b4b58e9d148d1ba7590120c1d7e1a0e5beae3abdd695ad --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:42:58,006 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:42:58,128 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d65f55-f7eb-4f56-b62d-6c713e9de446/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-26 10:42:58,137 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:42:58,140 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:42:58,183 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:42:58,184 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:42:58,184 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:42:58,185 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 10:42:58,190 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 10:42:58,191 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:42:58,191 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:42:58,192 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:42:58,194 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:42:58,194 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:42:58,195 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:42:58,195 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:42:58,196 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:42:58,196 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:42:58,197 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:42:58,197 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:42:58,198 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:42:58,198 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:42:58,198 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 10:42:58,199 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-26 10:42:58,199 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-26 10:42:58,200 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:42:58,200 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:42:58,201 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:42:58,201 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:42:58,203 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:42:58,203 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 10:42:58,203 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:42:58,203 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:42:58,204 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:42:58,204 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:42:58,205 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:42:58,205 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-26 10:42:58,205 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-26 10:42:58,206 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:42:58,206 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:42:58,206 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:42:58,206 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:42:58,206 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:42:58,207 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-26 10:42:58,207 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_e8d65f55-f7eb-4f56-b62d-6c713e9de446/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d65f55-f7eb-4f56-b62d-6c713e9de446/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e506e1f7b38bbd8fe6b4b58e9d148d1ba7590120c1d7e1a0e5beae3abdd695ad [2023-11-26 10:42:58,630 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:42:58,659 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:42:58,664 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:42:58,666 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:42:58,666 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:42:58,669 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d65f55-f7eb-4f56-b62d-6c713e9de446/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-79.i [2023-11-26 10:43:01,792 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:43:02,089 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:43:02,090 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d65f55-f7eb-4f56-b62d-6c713e9de446/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-79.i [2023-11-26 10:43:02,100 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d65f55-f7eb-4f56-b62d-6c713e9de446/bin/uautomizer-verify-VRDe98Ueme/data/fb5e63676/6651bbe443224e2981db57e41394fea4/FLAG2c73b315e [2023-11-26 10:43:02,114 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d65f55-f7eb-4f56-b62d-6c713e9de446/bin/uautomizer-verify-VRDe98Ueme/data/fb5e63676/6651bbe443224e2981db57e41394fea4 [2023-11-26 10:43:02,117 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:43:02,118 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:43:02,120 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:43:02,120 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:43:02,133 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:43:02,134 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:43:02" (1/1) ... [2023-11-26 10:43:02,135 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55776de1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:02, skipping insertion in model container [2023-11-26 10:43:02,136 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:43:02" (1/1) ... [2023-11-26 10:43:02,162 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:43:02,341 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_e8d65f55-f7eb-4f56-b62d-6c713e9de446/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-79.i[915,928] [2023-11-26 10:43:02,414 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:43:02,445 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:43:02,465 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_e8d65f55-f7eb-4f56-b62d-6c713e9de446/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-79.i[915,928] [2023-11-26 10:43:02,500 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:43:02,524 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:43:02,524 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:02 WrapperNode [2023-11-26 10:43:02,524 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:43:02,526 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:43:02,526 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:43:02,526 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:43:02,534 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:02" (1/1) ... [2023-11-26 10:43:02,558 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:02" (1/1) ... [2023-11-26 10:43:02,603 INFO L138 Inliner]: procedures = 27, calls = 26, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 100 [2023-11-26 10:43:02,613 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:43:02,614 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:43:02,614 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:43:02,614 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:43:02,626 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:02" (1/1) ... [2023-11-26 10:43:02,627 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:02" (1/1) ... [2023-11-26 10:43:02,639 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:02" (1/1) ... [2023-11-26 10:43:02,667 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 10:43:02,667 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:02" (1/1) ... [2023-11-26 10:43:02,668 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:02" (1/1) ... [2023-11-26 10:43:02,676 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:02" (1/1) ... [2023-11-26 10:43:02,689 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:02" (1/1) ... [2023-11-26 10:43:02,697 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:02" (1/1) ... [2023-11-26 10:43:02,699 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:02" (1/1) ... [2023-11-26 10:43:02,703 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:43:02,704 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:43:02,704 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:43:02,704 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:43:02,705 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:02" (1/1) ... [2023-11-26 10:43:02,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:43:02,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d65f55-f7eb-4f56-b62d-6c713e9de446/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:43:02,746 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d65f55-f7eb-4f56-b62d-6c713e9de446/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:43:02,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d65f55-f7eb-4f56-b62d-6c713e9de446/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:43:02,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:43:02,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-26 10:43:02,794 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 10:43:02,794 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 10:43:02,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:43:02,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:43:02,918 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:43:02,920 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:43:16,856 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:43:16,923 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:43:16,923 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 10:43:16,924 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:43:16 BoogieIcfgContainer [2023-11-26 10:43:16,924 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:43:16,926 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:43:16,926 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:43:16,929 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:43:16,930 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:43:02" (1/3) ... [2023-11-26 10:43:16,931 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29403210 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:43:16, skipping insertion in model container [2023-11-26 10:43:16,931 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:02" (2/3) ... [2023-11-26 10:43:16,932 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29403210 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:43:16, skipping insertion in model container [2023-11-26 10:43:16,932 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:43:16" (3/3) ... [2023-11-26 10:43:16,933 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-79.i [2023-11-26 10:43:16,971 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:43:16,971 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 10:43:17,025 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:43:17,033 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;@18e19798, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:43:17,033 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 10:43:17,038 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 25 states have (on average 1.44) internal successors, (36), 26 states have internal predecessors, (36), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-26 10:43:17,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-26 10:43:17,051 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:43:17,052 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:43:17,053 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:43:17,059 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:17,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1703742509, now seen corresponding path program 1 times [2023-11-26 10:43:17,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 10:43:17,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [971956915] [2023-11-26 10:43:17,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:17,080 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 10:43:17,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d65f55-f7eb-4f56-b62d-6c713e9de446/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 10:43:17,089 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d65f55-f7eb-4f56-b62d-6c713e9de446/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 10:43:17,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d65f55-f7eb-4f56-b62d-6c713e9de446/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 10:43:18,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:18,478 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-26 10:43:18,488 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:43:18,531 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-11-26 10:43:18,532 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:43:18,533 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 10:43:18,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [971956915] [2023-11-26 10:43:18,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [971956915] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:43:18,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:43:18,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:43:18,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650976590] [2023-11-26 10:43:18,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:43:18,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 10:43:18,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 10:43:18,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 10:43:18,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 10:43:18,595 INFO L87 Difference]: Start difference. First operand has 41 states, 25 states have (on average 1.44) internal successors, (36), 26 states have internal predecessors, (36), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-26 10:43:23,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-26 10:43:23,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:43:23,820 INFO L93 Difference]: Finished difference Result 79 states and 135 transitions. [2023-11-26 10:43:24,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 10:43:24,150 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 82 [2023-11-26 10:43:24,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:43:24,157 INFO L225 Difference]: With dead ends: 79 [2023-11-26 10:43:24,158 INFO L226 Difference]: Without dead ends: 39 [2023-11-26 10:43:24,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 81 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 10:43:24,166 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2023-11-26 10:43:24,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 54 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2023-11-26 10:43:24,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-11-26 10:43:24,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2023-11-26 10:43:24,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 24 states have internal predecessors, (31), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-26 10:43:24,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 57 transitions. [2023-11-26 10:43:24,216 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 57 transitions. Word has length 82 [2023-11-26 10:43:24,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:43:24,216 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 57 transitions. [2023-11-26 10:43:24,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-26 10:43:24,217 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 57 transitions. [2023-11-26 10:43:24,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-26 10:43:24,222 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:43:24,222 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:43:24,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d65f55-f7eb-4f56-b62d-6c713e9de446/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 10:43:24,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d65f55-f7eb-4f56-b62d-6c713e9de446/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 10:43:24,437 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:43:24,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:24,438 INFO L85 PathProgramCache]: Analyzing trace with hash -2025109917, now seen corresponding path program 1 times [2023-11-26 10:43:24,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 10:43:24,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [245068234] [2023-11-26 10:43:24,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:24,440 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 10:43:24,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d65f55-f7eb-4f56-b62d-6c713e9de446/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 10:43:24,442 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d65f55-f7eb-4f56-b62d-6c713e9de446/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 10:43:24,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d65f55-f7eb-4f56-b62d-6c713e9de446/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 10:43:25,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:25,787 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 10:43:25,792 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:43:25,883 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-26 10:43:25,883 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:43:25,883 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 10:43:25,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [245068234] [2023-11-26 10:43:25,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [245068234] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:43:25,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:43:25,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:43:25,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631003042] [2023-11-26 10:43:25,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:43:25,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:43:25,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 10:43:25,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:43:25,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:43:25,889 INFO L87 Difference]: Start difference. First operand 39 states and 57 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-11-26 10:43:31,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-26 10:43:35,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-26 10:43:39,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-26 10:43:39,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:43:39,166 INFO L93 Difference]: Finished difference Result 86 states and 125 transitions. [2023-11-26 10:43:39,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:43:39,484 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 82 [2023-11-26 10:43:39,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:43:39,486 INFO L225 Difference]: With dead ends: 86 [2023-11-26 10:43:39,487 INFO L226 Difference]: Without dead ends: 48 [2023-11-26 10:43:39,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 80 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 10:43:39,489 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 11 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2023-11-26 10:43:39,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 97 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 3 Unknown, 0 Unchecked, 13.3s Time] [2023-11-26 10:43:39,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-11-26 10:43:39,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 42. [2023-11-26 10:43:39,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 27 states have internal predecessors, (36), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-26 10:43:39,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 62 transitions. [2023-11-26 10:43:39,502 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 62 transitions. Word has length 82 [2023-11-26 10:43:39,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:43:39,504 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 62 transitions. [2023-11-26 10:43:39,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-11-26 10:43:39,504 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 62 transitions. [2023-11-26 10:43:39,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-26 10:43:39,507 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:43:39,507 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:43:39,526 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d65f55-f7eb-4f56-b62d-6c713e9de446/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)] Ended with exit code 0 [2023-11-26 10:43:39,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d65f55-f7eb-4f56-b62d-6c713e9de446/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 10:43:39,716 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:43:39,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:39,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1636828383, now seen corresponding path program 1 times [2023-11-26 10:43:39,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 10:43:39,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1154389382] [2023-11-26 10:43:39,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:39,718 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 10:43:39,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d65f55-f7eb-4f56-b62d-6c713e9de446/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 10:43:39,721 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d65f55-f7eb-4f56-b62d-6c713e9de446/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 10:43:39,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d65f55-f7eb-4f56-b62d-6c713e9de446/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 10:43:40,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:40,903 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-26 10:43:40,911 INFO L285 TraceCheckSpWp]: Computing forward predicates...