./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-95.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_7f1e8cf5-1ec5-43e1-a0d3-a095c3635977/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1e8cf5-1ec5-43e1-a0d3-a095c3635977/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_7f1e8cf5-1ec5-43e1-a0d3-a095c3635977/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1e8cf5-1ec5-43e1-a0d3-a095c3635977/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-95.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1e8cf5-1ec5-43e1-a0d3-a095c3635977/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_7f1e8cf5-1ec5-43e1-a0d3-a095c3635977/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 e669462867509a48cd8854a2d2c887397834599fcc49707fe1e1ec7fa25ff3cd --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:47:28,785 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:47:28,852 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1e8cf5-1ec5-43e1-a0d3-a095c3635977/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-26 10:47:28,858 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:47:28,858 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:47:28,888 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:47:28,888 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:47:28,889 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:47:28,897 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 10:47:28,898 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 10:47:28,899 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:47:28,899 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:47:28,900 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:47:28,901 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:47:28,901 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:47:28,904 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:47:28,904 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:47:28,909 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:47:28,909 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:47:28,910 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:47:28,910 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:47:28,911 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:47:28,911 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:47:28,911 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:47:28,912 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:47:28,912 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:47:28,912 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:47:28,913 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:47:28,913 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:47:28,913 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 10:47:28,914 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:47:28,914 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:47:28,915 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:47:28,915 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:47:28,915 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:47:28,916 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:47:28,916 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 10:47:28,917 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:47:28,917 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:47:28,917 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:47:28,918 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:47:28,918 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:47:28,918 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_7f1e8cf5-1ec5-43e1-a0d3-a095c3635977/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1e8cf5-1ec5-43e1-a0d3-a095c3635977/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e669462867509a48cd8854a2d2c887397834599fcc49707fe1e1ec7fa25ff3cd [2023-11-26 10:47:29,187 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:47:29,224 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:47:29,227 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:47:29,229 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:47:29,230 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:47:29,231 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1e8cf5-1ec5-43e1-a0d3-a095c3635977/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-95.i [2023-11-26 10:47:32,397 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:47:32,783 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:47:32,785 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1e8cf5-1ec5-43e1-a0d3-a095c3635977/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-95.i [2023-11-26 10:47:32,799 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1e8cf5-1ec5-43e1-a0d3-a095c3635977/bin/uautomizer-verify-VRDe98Ueme/data/740c3d641/1e9215bdc65d41759eb9b5bd90997295/FLAG83ec78657 [2023-11-26 10:47:33,066 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1e8cf5-1ec5-43e1-a0d3-a095c3635977/bin/uautomizer-verify-VRDe98Ueme/data/740c3d641/1e9215bdc65d41759eb9b5bd90997295 [2023-11-26 10:47:33,069 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:47:33,070 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:47:33,072 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:47:33,072 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:47:33,077 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:47:33,078 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:47:33" (1/1) ... [2023-11-26 10:47:33,079 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c8a7709 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:33, skipping insertion in model container [2023-11-26 10:47:33,079 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:47:33" (1/1) ... [2023-11-26 10:47:33,113 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:47:33,287 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_7f1e8cf5-1ec5-43e1-a0d3-a095c3635977/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-95.i[917,930] [2023-11-26 10:47:33,380 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:47:33,394 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:47:33,406 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_7f1e8cf5-1ec5-43e1-a0d3-a095c3635977/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-95.i[917,930] [2023-11-26 10:47:33,448 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:47:33,471 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:47:33,472 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:33 WrapperNode [2023-11-26 10:47:33,472 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:47:33,473 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:47:33,474 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:47:33,474 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:47:33,481 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:33" (1/1) ... [2023-11-26 10:47:33,496 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:33" (1/1) ... [2023-11-26 10:47:33,562 INFO L138 Inliner]: procedures = 29, calls = 149, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 439 [2023-11-26 10:47:33,563 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:47:33,564 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:47:33,564 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:47:33,564 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:47:33,577 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:33" (1/1) ... [2023-11-26 10:47:33,577 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:33" (1/1) ... [2023-11-26 10:47:33,585 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:33" (1/1) ... [2023-11-26 10:47:33,626 INFO L175 MemorySlicer]: Split 121 memory accesses to 2 slices as follows [2, 119]. 98 percent of accesses are in the largest equivalence class. The 16 initializations are split as follows [2, 14]. The 16 writes are split as follows [0, 16]. [2023-11-26 10:47:33,627 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:33" (1/1) ... [2023-11-26 10:47:33,627 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:33" (1/1) ... [2023-11-26 10:47:33,646 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:33" (1/1) ... [2023-11-26 10:47:33,651 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:33" (1/1) ... [2023-11-26 10:47:33,655 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:33" (1/1) ... [2023-11-26 10:47:33,659 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:33" (1/1) ... [2023-11-26 10:47:33,665 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:47:33,666 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:47:33,666 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:47:33,667 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:47:33,668 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:33" (1/1) ... [2023-11-26 10:47:33,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:47:33,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1e8cf5-1ec5-43e1-a0d3-a095c3635977/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:47:33,734 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1e8cf5-1ec5-43e1-a0d3-a095c3635977/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:47:33,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1e8cf5-1ec5-43e1-a0d3-a095c3635977/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:47:33,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:47:33,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2023-11-26 10:47:33,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2023-11-26 10:47:33,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-26 10:47:33,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-26 10:47:33,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2023-11-26 10:47:33,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2023-11-26 10:47:33,784 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-26 10:47:33,784 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-26 10:47:33,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2023-11-26 10:47:33,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2023-11-26 10:47:33,786 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 10:47:33,786 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 10:47:33,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 10:47:33,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 10:47:33,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:47:33,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:47:33,970 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:47:33,973 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:47:34,705 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:47:34,744 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:47:34,745 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 10:47:34,745 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:47:34 BoogieIcfgContainer [2023-11-26 10:47:34,746 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:47:34,763 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:47:34,763 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:47:34,766 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:47:34,767 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:47:33" (1/3) ... [2023-11-26 10:47:34,767 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1765a8f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:47:34, skipping insertion in model container [2023-11-26 10:47:34,768 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:33" (2/3) ... [2023-11-26 10:47:34,768 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1765a8f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:47:34, skipping insertion in model container [2023-11-26 10:47:34,768 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:47:34" (3/3) ... [2023-11-26 10:47:34,769 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-95.i [2023-11-26 10:47:34,789 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:47:34,790 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 10:47:34,838 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:47:34,844 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;@b5e4c18, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:47:34,844 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 10:47:34,849 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 84 states have (on average 1.4761904761904763) internal successors, (124), 85 states have internal predecessors, (124), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-26 10:47:34,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-26 10:47:34,865 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:47:34,866 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:47:34,866 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:47:34,872 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:34,872 INFO L85 PathProgramCache]: Analyzing trace with hash 671067389, now seen corresponding path program 1 times [2023-11-26 10:47:34,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:34,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231415736] [2023-11-26 10:47:34,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:34,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:35,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:35,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:47:35,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231415736] [2023-11-26 10:47:35,239 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-26 10:47:35,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1618557237] [2023-11-26 10:47:35,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:35,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:47:35,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1e8cf5-1ec5-43e1-a0d3-a095c3635977/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:47:35,243 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1e8cf5-1ec5-43e1-a0d3-a095c3635977/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:47:35,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1e8cf5-1ec5-43e1-a0d3-a095c3635977/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 10:47:35,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:35,597 INFO L262 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-26 10:47:35,616 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:47:35,683 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2023-11-26 10:47:35,683 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:47:35,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1618557237] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:47:35,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:47:35,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:47:35,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715651197] [2023-11-26 10:47:35,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:47:35,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 10:47:35,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:47:35,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 10:47:35,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 10:47:35,745 INFO L87 Difference]: Start difference. First operand has 103 states, 84 states have (on average 1.4761904761904763) internal successors, (124), 85 states have internal predecessors, (124), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-26 10:47:35,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:47:35,824 INFO L93 Difference]: Finished difference Result 203 states and 326 transitions. [2023-11-26 10:47:35,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 10:47:35,828 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 127 [2023-11-26 10:47:35,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:47:35,839 INFO L225 Difference]: With dead ends: 203 [2023-11-26 10:47:35,839 INFO L226 Difference]: Without dead ends: 101 [2023-11-26 10:47:35,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 126 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 10:47:35,850 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:47:35,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 143 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:47:35,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2023-11-26 10:47:35,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2023-11-26 10:47:35,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 83 states have (on average 1.3855421686746987) internal successors, (115), 83 states have internal predecessors, (115), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-26 10:47:35,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 147 transitions. [2023-11-26 10:47:35,942 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 147 transitions. Word has length 127 [2023-11-26 10:47:35,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:47:35,942 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 147 transitions. [2023-11-26 10:47:35,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-26 10:47:35,943 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 147 transitions. [2023-11-26 10:47:35,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-26 10:47:35,947 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:47:35,947 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:47:35,964 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1e8cf5-1ec5-43e1-a0d3-a095c3635977/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 10:47:36,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1e8cf5-1ec5-43e1-a0d3-a095c3635977/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:47:36,163 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:47:36,163 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:36,164 INFO L85 PathProgramCache]: Analyzing trace with hash -2051067871, now seen corresponding path program 1 times [2023-11-26 10:47:36,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:36,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555134147] [2023-11-26 10:47:36,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:36,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:36,272 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:47:36,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1350393458] [2023-11-26 10:47:36,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:36,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:47:36,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1e8cf5-1ec5-43e1-a0d3-a095c3635977/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:47:36,282 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1e8cf5-1ec5-43e1-a0d3-a095c3635977/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:47:36,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1e8cf5-1ec5-43e1-a0d3-a095c3635977/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 10:47:36,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:36,541 INFO L262 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 10:47:36,548 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:47:36,607 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-11-26 10:47:36,609 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:47:36,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:47:36,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555134147] [2023-11-26 10:47:36,611 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:47:36,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1350393458] [2023-11-26 10:47:36,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1350393458] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:47:36,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:47:36,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 10:47:36,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157397364] [2023-11-26 10:47:36,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:47:36,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 10:47:36,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:47:36,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 10:47:36,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:47:36,616 INFO L87 Difference]: Start difference. First operand 101 states and 147 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-11-26 10:47:36,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:47:36,672 INFO L93 Difference]: Finished difference Result 205 states and 298 transitions. [2023-11-26 10:47:36,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 10:47:36,673 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 127 [2023-11-26 10:47:36,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:47:36,676 INFO L225 Difference]: With dead ends: 205 [2023-11-26 10:47:36,676 INFO L226 Difference]: Without dead ends: 105 [2023-11-26 10:47:36,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:47:36,678 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 3 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:47:36,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 417 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:47:36,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2023-11-26 10:47:36,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 103. [2023-11-26 10:47:36,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 85 states have (on average 1.3764705882352941) internal successors, (117), 85 states have internal predecessors, (117), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-26 10:47:36,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 149 transitions. [2023-11-26 10:47:36,692 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 149 transitions. Word has length 127 [2023-11-26 10:47:36,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:47:36,694 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 149 transitions. [2023-11-26 10:47:36,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-11-26 10:47:36,695 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 149 transitions. [2023-11-26 10:47:36,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-26 10:47:36,697 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:47:36,698 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:47:36,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1e8cf5-1ec5-43e1-a0d3-a095c3635977/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-26 10:47:36,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1e8cf5-1ec5-43e1-a0d3-a095c3635977/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:47:36,905 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:47:36,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:36,906 INFO L85 PathProgramCache]: Analyzing trace with hash -2051008289, now seen corresponding path program 1 times [2023-11-26 10:47:36,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:36,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326355006] [2023-11-26 10:47:36,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:36,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:37,019 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:47:37,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1163509355] [2023-11-26 10:47:37,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:37,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:47:37,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1e8cf5-1ec5-43e1-a0d3-a095c3635977/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:47:37,027 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1e8cf5-1ec5-43e1-a0d3-a095c3635977/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:47:37,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1e8cf5-1ec5-43e1-a0d3-a095c3635977/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-26 10:47:37,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:37,326 INFO L262 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-26 10:47:37,340 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:47:40,060 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-26 10:47:40,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 10:47:40,177 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-11-26 10:47:40,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 10:47:40,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 10:47:40,205 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 13 [2023-11-26 10:47:40,450 INFO L349 Elim1Store]: treesize reduction 32, result has 52.2 percent of original size [2023-11-26 10:47:40,451 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 125 treesize of output 129 [2023-11-26 10:47:40,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 10:47:40,901 INFO L349 Elim1Store]: treesize reduction 278, result has 8.9 percent of original size [2023-11-26 10:47:40,902 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 7 new quantified variables, introduced 11 case distinctions, treesize of input 197 treesize of output 289 [2023-11-26 10:47:42,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 10:47:42,559 INFO L349 Elim1Store]: treesize reduction 24, result has 45.5 percent of original size [2023-11-26 10:47:42,560 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 57 [2023-11-26 10:47:42,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 10:47:42,688 INFO L349 Elim1Store]: treesize reduction 71, result has 20.2 percent of original size [2023-11-26 10:47:42,688 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 160 treesize of output 193 [2023-11-26 10:47:42,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 10:47:42,994 INFO L349 Elim1Store]: treesize reduction 57, result has 41.2 percent of original size [2023-11-26 10:47:42,995 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 80 treesize of output 95 [2023-11-26 10:47:43,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 10:47:43,084 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 53 [2023-11-26 10:47:43,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 10:47:43,233 INFO L349 Elim1Store]: treesize reduction 106, result has 40.1 percent of original size [2023-11-26 10:47:43,234 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 112 treesize of output 160 [2023-11-26 10:47:47,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 10:47:50,763 INFO L349 Elim1Store]: treesize reduction 786, result has 18.2 percent of original size [2023-11-26 10:47:50,764 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 11 new quantified variables, introduced 45 case distinctions, treesize of input 197 treesize of output 421 [2023-11-26 10:47:51,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 10:47:51,997 INFO L349 Elim1Store]: treesize reduction 62, result has 22.5 percent of original size [2023-11-26 10:47:51,997 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 86 treesize of output 91 [2023-11-26 10:47:52,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 10:47:52,832 INFO L349 Elim1Store]: treesize reduction 62, result has 22.5 percent of original size [2023-11-26 10:47:52,832 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 86 treesize of output 91 [2023-11-26 10:47:53,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 10:47:53,422 INFO L349 Elim1Store]: treesize reduction 62, result has 22.5 percent of original size [2023-11-26 10:47:53,422 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 86 treesize of output 91 [2023-11-26 10:47:56,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 10:47:56,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 10:47:57,122 INFO L349 Elim1Store]: treesize reduction 192, result has 33.3 percent of original size [2023-11-26 10:47:57,123 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 24 case distinctions, treesize of input 176 treesize of output 252 [2023-11-26 10:47:58,461 INFO L349 Elim1Store]: treesize reduction 112, result has 40.7 percent of original size [2023-11-26 10:47:58,462 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 94 treesize of output 148