./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-67.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_b392ece0-1f88-462e-9bda-5b7e2dced633/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b392ece0-1f88-462e-9bda-5b7e2dced633/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b392ece0-1f88-462e-9bda-5b7e2dced633/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b392ece0-1f88-462e-9bda-5b7e2dced633/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-67.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b392ece0-1f88-462e-9bda-5b7e2dced633/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b392ece0-1f88-462e-9bda-5b7e2dced633/bin/uautomizer-verify-uCwYo4JHxu --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 a52320cf15ef16183046f0f792382098821a237814ee842f46de00a84d4e09b2 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:39:46,743 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:39:46,875 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b392ece0-1f88-462e-9bda-5b7e2dced633/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:39:46,888 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:39:46,889 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:39:46,929 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:39:46,930 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:39:46,930 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:39:46,932 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:39:46,937 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:39:46,939 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:39:46,939 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:39:46,940 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:39:46,942 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:39:46,942 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:39:46,943 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:39:46,943 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:39:46,943 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:39:46,944 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:39:46,944 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:39:46,945 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:39:46,945 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:39:46,946 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:39:46,946 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:39:46,947 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:39:46,948 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:39:46,948 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:39:46,949 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:39:46,949 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:39:46,950 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:39:46,951 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:39:46,951 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:39:46,951 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:39:46,952 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:39:46,952 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:39:46,952 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:39:46,952 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:39:46,953 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:39:46,953 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:39:46,953 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_b392ece0-1f88-462e-9bda-5b7e2dced633/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b392ece0-1f88-462e-9bda-5b7e2dced633/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a52320cf15ef16183046f0f792382098821a237814ee842f46de00a84d4e09b2 [2023-11-19 07:39:47,293 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:39:47,348 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:39:47,350 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:39:47,352 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:39:47,353 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:39:47,354 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b392ece0-1f88-462e-9bda-5b7e2dced633/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-67.i [2023-11-19 07:39:50,469 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:39:50,729 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:39:50,737 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b392ece0-1f88-462e-9bda-5b7e2dced633/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-67.i [2023-11-19 07:39:50,756 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b392ece0-1f88-462e-9bda-5b7e2dced633/bin/uautomizer-verify-uCwYo4JHxu/data/2b11c7d06/b447cc0853484b009ab31ad31ad65cc3/FLAGefd94cdbd [2023-11-19 07:39:50,775 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b392ece0-1f88-462e-9bda-5b7e2dced633/bin/uautomizer-verify-uCwYo4JHxu/data/2b11c7d06/b447cc0853484b009ab31ad31ad65cc3 [2023-11-19 07:39:50,778 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:39:50,780 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:39:50,781 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:39:50,781 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:39:50,787 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:39:50,788 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:39:50" (1/1) ... [2023-11-19 07:39:50,789 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ea36d9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:50, skipping insertion in model container [2023-11-19 07:39:50,789 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:39:50" (1/1) ... [2023-11-19 07:39:50,832 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:39:50,981 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_b392ece0-1f88-462e-9bda-5b7e2dced633/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-67.i[917,930] [2023-11-19 07:39:51,051 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:39:51,066 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:39:51,078 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_b392ece0-1f88-462e-9bda-5b7e2dced633/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-67.i[917,930] [2023-11-19 07:39:51,120 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:39:51,141 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:39:51,142 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:51 WrapperNode [2023-11-19 07:39:51,142 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:39:51,143 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:39:51,144 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:39:51,144 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:39:51,151 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:51" (1/1) ... [2023-11-19 07:39:51,169 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:51" (1/1) ... [2023-11-19 07:39:51,222 INFO L138 Inliner]: procedures = 29, calls = 135, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 369 [2023-11-19 07:39:51,223 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:39:51,223 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:39:51,224 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:39:51,224 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:39:51,240 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:51" (1/1) ... [2023-11-19 07:39:51,241 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:51" (1/1) ... [2023-11-19 07:39:51,249 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:51" (1/1) ... [2023-11-19 07:39:51,249 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:51" (1/1) ... [2023-11-19 07:39:51,268 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:51" (1/1) ... [2023-11-19 07:39:51,292 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:51" (1/1) ... [2023-11-19 07:39:51,295 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:51" (1/1) ... [2023-11-19 07:39:51,302 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:51" (1/1) ... [2023-11-19 07:39:51,328 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:39:51,329 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:39:51,329 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:39:51,329 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:39:51,330 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:51" (1/1) ... [2023-11-19 07:39:51,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:39:51,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b392ece0-1f88-462e-9bda-5b7e2dced633/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:39:51,367 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b392ece0-1f88-462e-9bda-5b7e2dced633/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:39:51,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b392ece0-1f88-462e-9bda-5b7e2dced633/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:39:51,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:39:51,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-19 07:39:51,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:39:51,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-19 07:39:51,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:39:51,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-11-19 07:39:51,450 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:39:51,450 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:39:51,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:39:51,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:39:51,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:39:51,614 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:39:51,617 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:39:52,175 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:39:52,184 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:39:52,185 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:39:52,189 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:39:52 BoogieIcfgContainer [2023-11-19 07:39:52,189 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:39:52,192 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:39:52,192 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:39:52,196 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:39:52,196 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:39:50" (1/3) ... [2023-11-19 07:39:52,197 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@579aba1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:39:52, skipping insertion in model container [2023-11-19 07:39:52,197 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:51" (2/3) ... [2023-11-19 07:39:52,197 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@579aba1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:39:52, skipping insertion in model container [2023-11-19 07:39:52,198 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:39:52" (3/3) ... [2023-11-19 07:39:52,210 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-ap_file-67.i [2023-11-19 07:39:52,231 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:39:52,231 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:39:52,285 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:39:52,292 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;@1d0c9cd9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:39:52,292 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:39:52,297 INFO L276 IsEmpty]: Start isEmpty. Operand has 91 states, 76 states have (on average 1.4078947368421053) internal successors, (107), 77 states have internal predecessors, (107), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-19 07:39:52,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-19 07:39:52,311 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:52,312 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:52,312 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:39:52,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:52,317 INFO L85 PathProgramCache]: Analyzing trace with hash -383575852, now seen corresponding path program 1 times [2023-11-19 07:39:52,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:52,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539949688] [2023-11-19 07:39:52,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:52,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:52,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:52,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:52,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539949688] [2023-11-19 07:39:52,625 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-19 07:39:52,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [950269454] [2023-11-19 07:39:52,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:52,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:39:52,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b392ece0-1f88-462e-9bda-5b7e2dced633/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:39:52,631 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b392ece0-1f88-462e-9bda-5b7e2dced633/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:39:52,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b392ece0-1f88-462e-9bda-5b7e2dced633/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:39:52,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:53,002 INFO L262 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 07:39:53,023 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:39:53,084 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2023-11-19 07:39:53,089 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:39:53,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [950269454] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:53,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:53,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:39:53,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052086766] [2023-11-19 07:39:53,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:53,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:39:53,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:53,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:39:53,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:39:53,135 INFO L87 Difference]: Start difference. First operand has 91 states, 76 states have (on average 1.4078947368421053) internal successors, (107), 77 states have internal predecessors, (107), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-19 07:39:53,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:39:53,170 INFO L93 Difference]: Finished difference Result 175 states and 268 transitions. [2023-11-19 07:39:53,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:39:53,173 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 104 [2023-11-19 07:39:53,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:39:53,183 INFO L225 Difference]: With dead ends: 175 [2023-11-19 07:39:53,183 INFO L226 Difference]: Without dead ends: 87 [2023-11-19 07:39:53,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:39:53,192 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:39:53,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:39:53,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-11-19 07:39:53,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2023-11-19 07:39:53,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 73 states have (on average 1.36986301369863) internal successors, (100), 73 states have internal predecessors, (100), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-19 07:39:53,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 124 transitions. [2023-11-19 07:39:53,248 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 124 transitions. Word has length 104 [2023-11-19 07:39:53,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:39:53,248 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 124 transitions. [2023-11-19 07:39:53,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-19 07:39:53,249 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 124 transitions. [2023-11-19 07:39:53,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-19 07:39:53,253 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:53,253 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:53,275 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b392ece0-1f88-462e-9bda-5b7e2dced633/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-19 07:39:53,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b392ece0-1f88-462e-9bda-5b7e2dced633/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-19 07:39:53,470 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:39:53,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:53,471 INFO L85 PathProgramCache]: Analyzing trace with hash 395477316, now seen corresponding path program 1 times [2023-11-19 07:39:53,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:53,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454810996] [2023-11-19 07:39:53,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:53,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:53,557 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:39:53,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [871091544] [2023-11-19 07:39:53,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:53,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:39:53,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b392ece0-1f88-462e-9bda-5b7e2dced633/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:39:53,559 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b392ece0-1f88-462e-9bda-5b7e2dced633/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:39:53,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b392ece0-1f88-462e-9bda-5b7e2dced633/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:39:53,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:53,829 INFO L262 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:39:53,846 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:39:53,928 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-19 07:39:53,929 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:39:53,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:53,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454810996] [2023-11-19 07:39:53,932 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:39:53,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [871091544] [2023-11-19 07:39:53,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [871091544] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:53,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:53,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:39:53,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964035862] [2023-11-19 07:39:53,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:53,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:39:53,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:53,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:39:53,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:39:53,940 INFO L87 Difference]: Start difference. First operand 87 states and 124 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-19 07:39:54,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:39:54,075 INFO L93 Difference]: Finished difference Result 183 states and 262 transitions. [2023-11-19 07:39:54,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:39:54,075 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 104 [2023-11-19 07:39:54,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:39:54,078 INFO L225 Difference]: With dead ends: 183 [2023-11-19 07:39:54,078 INFO L226 Difference]: Without dead ends: 99 [2023-11-19 07:39:54,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:39:54,081 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 21 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:39:54,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 359 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:39:54,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-11-19 07:39:54,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 89. [2023-11-19 07:39:54,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 75 states have (on average 1.36) internal successors, (102), 75 states have internal predecessors, (102), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-19 07:39:54,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 126 transitions. [2023-11-19 07:39:54,097 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 126 transitions. Word has length 104 [2023-11-19 07:39:54,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:39:54,099 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 126 transitions. [2023-11-19 07:39:54,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-19 07:39:54,099 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 126 transitions. [2023-11-19 07:39:54,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-19 07:39:54,102 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:54,102 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:54,125 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b392ece0-1f88-462e-9bda-5b7e2dced633/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-19 07:39:54,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b392ece0-1f88-462e-9bda-5b7e2dced633/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-19 07:39:54,316 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:39:54,316 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:54,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1075535686, now seen corresponding path program 1 times [2023-11-19 07:39:54,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:54,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053709643] [2023-11-19 07:39:54,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:54,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:54,410 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:39:54,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [572234564] [2023-11-19 07:39:54,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:54,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:39:54,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b392ece0-1f88-462e-9bda-5b7e2dced633/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:39:54,424 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b392ece0-1f88-462e-9bda-5b7e2dced633/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:39:54,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b392ece0-1f88-462e-9bda-5b7e2dced633/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 07:39:54,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:54,658 INFO L262 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:39:54,663 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:39:54,688 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-19 07:39:54,690 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:39:54,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:54,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053709643] [2023-11-19 07:39:54,691 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:39:54,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [572234564] [2023-11-19 07:39:54,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [572234564] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:54,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:54,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:39:54,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377737532] [2023-11-19 07:39:54,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:54,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:39:54,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:54,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:39:54,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:39:54,694 INFO L87 Difference]: Start difference. First operand 89 states and 126 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-19 07:39:54,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:39:54,739 INFO L93 Difference]: Finished difference Result 179 states and 254 transitions. [2023-11-19 07:39:54,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:39:54,740 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 104 [2023-11-19 07:39:54,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:39:54,744 INFO L225 Difference]: With dead ends: 179 [2023-11-19 07:39:54,746 INFO L226 Difference]: Without dead ends: 93 [2023-11-19 07:39:54,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:39:54,751 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 3 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:39:54,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 356 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:39:54,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2023-11-19 07:39:54,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2023-11-19 07:39:54,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 77 states have (on average 1.3506493506493507) internal successors, (104), 77 states have internal predecessors, (104), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-19 07:39:54,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 128 transitions. [2023-11-19 07:39:54,770 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 128 transitions. Word has length 104 [2023-11-19 07:39:54,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:39:54,771 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 128 transitions. [2023-11-19 07:39:54,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-19 07:39:54,772 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 128 transitions. [2023-11-19 07:39:54,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-19 07:39:54,775 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:54,776 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:54,798 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b392ece0-1f88-462e-9bda-5b7e2dced633/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:39:54,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b392ece0-1f88-462e-9bda-5b7e2dced633/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:39:54,993 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:39:54,994 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:54,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1077382728, now seen corresponding path program 1 times [2023-11-19 07:39:54,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:54,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714879371] [2023-11-19 07:39:54,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:54,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:55,045 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:39:55,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1436888174] [2023-11-19 07:39:55,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:55,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:39:55,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b392ece0-1f88-462e-9bda-5b7e2dced633/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:39:55,048 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b392ece0-1f88-462e-9bda-5b7e2dced633/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:39:55,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b392ece0-1f88-462e-9bda-5b7e2dced633/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 07:39:55,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:55,422 INFO L262 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 83 conjunts are in the unsatisfiable core [2023-11-19 07:39:55,436 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:39:57,788 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 15 treesize of output 1 [2023-11-19 07:39:59,373 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 17 treesize of output 12 [2023-11-19 07:40:00,214 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 24 treesize of output 12 [2023-11-19 07:40:01,084 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2023-11-19 07:40:01,851 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 103 treesize of output 76 [2023-11-19 07:40:01,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:40:01,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:40:01,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:40:01,867 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 79 [2023-11-19 07:40:02,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:40:02,005 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 65 treesize of output 50 [2023-11-19 07:40:02,938 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 154 treesize of output 118 [2023-11-19 07:40:03,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:40:03,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:40:03,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:40:03,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:40:03,279 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 10 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 149 treesize of output 107 [2023-11-19 07:40:03,590 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 139 treesize of output 102 [2023-11-19 07:40:03,914 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 256 treesize of output 192 [2023-11-19 07:40:03,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:40:03,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:40:03,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:40:03,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:40:03,931 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 183 treesize of output 119 [2023-11-19 07:40:04,234 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 11 proven. 217 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-19 07:40:04,234 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:40:04,453 WARN L854 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_395 (Array Int Int))) (let ((.cse2 (store |c_#memory_int| c_~signed_long_int_Array_0_arraysigned_long_int_Array_0Var1_Pointer~0.base v_ArrVal_395))) (let ((.cse0 (mod (+ (select (select .cse2 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var1_Pointer~0.base) c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var1_Pointer~0.offset) (select (select .cse2 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base) c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.offset)) 65536)) (.cse1 (select (select .cse2 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var2_Pointer~0.base) c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var2_Pointer~0.offset))) (or (= .cse0 .cse1) (= .cse0 (+ .cse1 65536)))))) (forall ((v_ArrVal_395 (Array Int Int))) (let ((.cse4 (store |c_#memory_int| c_~signed_long_int_Array_0_arraysigned_long_int_Array_0Var1_Pointer~0.base v_ArrVal_395))) (let ((.cse3 (mod (+ (select (select .cse4 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var1_Pointer~0.base) c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var1_Pointer~0.offset) (select (select .cse4 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base) c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.offset)) 65536))) (or (< .cse3 32768) (= .cse3 (+ (select (select .cse4 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var2_Pointer~0.base) c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var2_Pointer~0.offset) 65536)))))) (forall ((v_ArrVal_395 (Array Int Int))) (let ((.cse6 (store |c_#memory_int| c_~signed_long_int_Array_0_arraysigned_long_int_Array_0Var1_Pointer~0.base v_ArrVal_395))) (let ((.cse5 (mod (+ (select (select .cse6 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var1_Pointer~0.base) c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var1_Pointer~0.offset) (select (select .cse6 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base) c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.offset)) 65536))) (or (< 32767 .cse5) (not (= .cse5 (+ (select (select .cse6 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var2_Pointer~0.base) c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var2_Pointer~0.offset) 65536)))))))) is different from false [2023-11-19 07:40:04,582 WARN L854 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_393 (Array Int Int)) (v_ArrVal_392 (Array Int Int)) (v_ArrVal_395 (Array Int Int)) (v_ArrVal_394 (Array Int Int))) (let ((.cse1 (store (store (store (store |c_#memory_int| c_~float_Array_0_arrayfloat_Array_0arrayVar1_Pointer~0.base v_ArrVal_393) c_~double_Array_0_arraydouble_Array_0arrayVar0_Pointer~0.base v_ArrVal_392) c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.base v_ArrVal_394) c_~signed_long_int_Array_0_arraysigned_long_int_Array_0Var1_Pointer~0.base v_ArrVal_395))) (let ((.cse0 (mod (+ (select (select .cse1 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base) c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.offset) (select (select .cse1 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var1_Pointer~0.base) c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var1_Pointer~0.offset)) 65536))) (or (not (= .cse0 (+ 65536 (select (select .cse1 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var2_Pointer~0.base) c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var2_Pointer~0.offset)))) (< 32767 .cse0))))) (forall ((v_ArrVal_393 (Array Int Int)) (v_ArrVal_392 (Array Int Int)) (v_ArrVal_395 (Array Int Int)) (v_ArrVal_394 (Array Int Int))) (let ((.cse4 (store (store (store (store |c_#memory_int| c_~float_Array_0_arrayfloat_Array_0arrayVar1_Pointer~0.base v_ArrVal_393) c_~double_Array_0_arraydouble_Array_0arrayVar0_Pointer~0.base v_ArrVal_392) c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.base v_ArrVal_394) c_~signed_long_int_Array_0_arraysigned_long_int_Array_0Var1_Pointer~0.base v_ArrVal_395))) (let ((.cse2 (mod (+ (select (select .cse4 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base) c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.offset) (select (select .cse4 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var1_Pointer~0.base) c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var1_Pointer~0.offset)) 65536)) (.cse3 (select (select .cse4 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var2_Pointer~0.base) c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var2_Pointer~0.offset))) (or (= .cse2 (+ 65536 .cse3)) (= .cse2 .cse3))))) (forall ((v_ArrVal_393 (Array Int Int)) (v_ArrVal_392 (Array Int Int)) (v_ArrVal_395 (Array Int Int)) (v_ArrVal_394 (Array Int Int))) (let ((.cse6 (store (store (store (store |c_#memory_int| c_~float_Array_0_arrayfloat_Array_0arrayVar1_Pointer~0.base v_ArrVal_393) c_~double_Array_0_arraydouble_Array_0arrayVar0_Pointer~0.base v_ArrVal_392) c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.base v_ArrVal_394) c_~signed_long_int_Array_0_arraysigned_long_int_Array_0Var1_Pointer~0.base v_ArrVal_395))) (let ((.cse5 (mod (+ (select (select .cse6 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base) c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.offset) (select (select .cse6 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var1_Pointer~0.base) c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var1_Pointer~0.offset)) 65536))) (or (< .cse5 32768) (= .cse5 (+ 65536 (select (select .cse6 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var2_Pointer~0.base) c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var2_Pointer~0.offset)))))))) is different from false [2023-11-19 07:40:04,896 WARN L854 $PredicateComparison]: unable to prove that (or (< |c_ULTIMATE.start_step_~stepLocal_0~0#1| |c_ULTIMATE.start_step_#t~mem7#1|) (and (not (= |c_ULTIMATE.start_step_#t~mem8#1| 0)) (not (= |c_ULTIMATE.start_step_#t~mem7#1| 0))) (and (forall ((v_ArrVal_391 (Array Int Int)) (v_ArrVal_393 (Array Int Int)) (v_ArrVal_392 (Array Int Int)) (v_ArrVal_395 (Array Int Int)) (v_ArrVal_394 (Array Int Int))) (let ((.cse1 (store (store (store (store (store |c_#memory_int| c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer~0.base v_ArrVal_391) c_~float_Array_0_arrayfloat_Array_0arrayVar1_Pointer~0.base v_ArrVal_393) c_~double_Array_0_arraydouble_Array_0arrayVar0_Pointer~0.base v_ArrVal_392) c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.base v_ArrVal_394) c_~signed_long_int_Array_0_arraysigned_long_int_Array_0Var1_Pointer~0.base v_ArrVal_395))) (let ((.cse0 (mod (+ (select (select .cse1 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base) c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.offset) (select (select .cse1 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var1_Pointer~0.base) c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var1_Pointer~0.offset)) 65536))) (or (= .cse0 (+ 65536 (select (select .cse1 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var2_Pointer~0.base) c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var2_Pointer~0.offset))) (< .cse0 32768))))) (forall ((v_ArrVal_391 (Array Int Int)) (v_ArrVal_393 (Array Int Int)) (v_ArrVal_392 (Array Int Int)) (v_ArrVal_395 (Array Int Int)) (v_ArrVal_394 (Array Int Int))) (let ((.cse4 (store (store (store (store (store |c_#memory_int| c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer~0.base v_ArrVal_391) c_~float_Array_0_arrayfloat_Array_0arrayVar1_Pointer~0.base v_ArrVal_393) c_~double_Array_0_arraydouble_Array_0arrayVar0_Pointer~0.base v_ArrVal_392) c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.base v_ArrVal_394) c_~signed_long_int_Array_0_arraysigned_long_int_Array_0Var1_Pointer~0.base v_ArrVal_395))) (let ((.cse2 (mod (+ (select (select .cse4 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base) c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.offset) (select (select .cse4 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var1_Pointer~0.base) c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var1_Pointer~0.offset)) 65536)) (.cse3 (select (select .cse4 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var2_Pointer~0.base) c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var2_Pointer~0.offset))) (or (= .cse2 .cse3) (= .cse2 (+ 65536 .cse3)))))) (forall ((v_ArrVal_391 (Array Int Int)) (v_ArrVal_393 (Array Int Int)) (v_ArrVal_392 (Array Int Int)) (v_ArrVal_395 (Array Int Int)) (v_ArrVal_394 (Array Int Int))) (let ((.cse6 (store (store (store (store (store |c_#memory_int| c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer~0.base v_ArrVal_391) c_~float_Array_0_arrayfloat_Array_0arrayVar1_Pointer~0.base v_ArrVal_393) c_~double_Array_0_arraydouble_Array_0arrayVar0_Pointer~0.base v_ArrVal_392) c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.base v_ArrVal_394) c_~signed_long_int_Array_0_arraysigned_long_int_Array_0Var1_Pointer~0.base v_ArrVal_395))) (let ((.cse5 (mod (+ (select (select .cse6 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base) c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.offset) (select (select .cse6 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var1_Pointer~0.base) c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var1_Pointer~0.offset)) 65536))) (or (not (= .cse5 (+ 65536 (select (select .cse6 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var2_Pointer~0.base) c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var2_Pointer~0.offset)))) (< 32767 .cse5))))))) is different from false [2023-11-19 07:40:04,993 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse7 (select (select |c_#memory_int| c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var2_Pointer~0.base) c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var2_Pointer~0.offset))) (or (and (forall ((v_ArrVal_391 (Array Int Int)) (v_ArrVal_393 (Array Int Int)) (v_ArrVal_392 (Array Int Int)) (v_ArrVal_395 (Array Int Int)) (v_ArrVal_394 (Array Int Int))) (let ((.cse1 (store (store (store (store (store |c_#memory_int| c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer~0.base v_ArrVal_391) c_~float_Array_0_arrayfloat_Array_0arrayVar1_Pointer~0.base v_ArrVal_393) c_~double_Array_0_arraydouble_Array_0arrayVar0_Pointer~0.base v_ArrVal_392) c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.base v_ArrVal_394) c_~signed_long_int_Array_0_arraysigned_long_int_Array_0Var1_Pointer~0.base v_ArrVal_395))) (let ((.cse0 (mod (+ (select (select .cse1 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base) c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.offset) (select (select .cse1 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var1_Pointer~0.base) c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var1_Pointer~0.offset)) 65536))) (or (= .cse0 (+ 65536 (select (select .cse1 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var2_Pointer~0.base) c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var2_Pointer~0.offset))) (< .cse0 32768))))) (forall ((v_ArrVal_391 (Array Int Int)) (v_ArrVal_393 (Array Int Int)) (v_ArrVal_392 (Array Int Int)) (v_ArrVal_395 (Array Int Int)) (v_ArrVal_394 (Array Int Int))) (let ((.cse4 (store (store (store (store (store |c_#memory_int| c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer~0.base v_ArrVal_391) c_~float_Array_0_arrayfloat_Array_0arrayVar1_Pointer~0.base v_ArrVal_393) c_~double_Array_0_arraydouble_Array_0arrayVar0_Pointer~0.base v_ArrVal_392) c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.base v_ArrVal_394) c_~signed_long_int_Array_0_arraysigned_long_int_Array_0Var1_Pointer~0.base v_ArrVal_395))) (let ((.cse2 (mod (+ (select (select .cse4 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base) c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.offset) (select (select .cse4 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var1_Pointer~0.base) c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var1_Pointer~0.offset)) 65536)) (.cse3 (select (select .cse4 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var2_Pointer~0.base) c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var2_Pointer~0.offset))) (or (= .cse2 .cse3) (= .cse2 (+ 65536 .cse3)))))) (forall ((v_ArrVal_391 (Array Int Int)) (v_ArrVal_393 (Array Int Int)) (v_ArrVal_392 (Array Int Int)) (v_ArrVal_395 (Array Int Int)) (v_ArrVal_394 (Array Int Int))) (let ((.cse6 (store (store (store (store (store |c_#memory_int| c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer~0.base v_ArrVal_391) c_~float_Array_0_arrayfloat_Array_0arrayVar1_Pointer~0.base v_ArrVal_393) c_~double_Array_0_arraydouble_Array_0arrayVar0_Pointer~0.base v_ArrVal_392) c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.base v_ArrVal_394) c_~signed_long_int_Array_0_arraysigned_long_int_Array_0Var1_Pointer~0.base v_ArrVal_395))) (let ((.cse5 (mod (+ (select (select .cse6 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base) c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.offset) (select (select .cse6 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var1_Pointer~0.base) c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var1_Pointer~0.offset)) 65536))) (or (not (= .cse5 (+ 65536 (select (select .cse6 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var2_Pointer~0.base) c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var2_Pointer~0.offset)))) (< 32767 .cse5)))))) (< (select (select |c_#memory_int| c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var1_Pointer~0.base) c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var1_Pointer~0.offset) .cse7) (and (not (= (select (select |c_#memory_int| c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base) c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.offset) 0)) (not (= .cse7 0))))) is different from false [2023-11-19 07:40:08,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:08,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714879371] [2023-11-19 07:40:08,164 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:40:08,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1436888174] [2023-11-19 07:40:08,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1436888174] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:40:08,171 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:40:08,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2023-11-19 07:40:08,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761997902] [2023-11-19 07:40:08,171 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-19 07:40:08,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-11-19 07:40:08,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:08,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-11-19 07:40:08,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=508, Unknown=5, NotChecked=196, Total=812 [2023-11-19 07:40:08,176 INFO L87 Difference]: Start difference. First operand 91 states and 128 transitions. Second operand has 21 states, 20 states have (on average 3.25) internal successors, (65), 19 states have internal predecessors, (65), 6 states have call successors, (12), 6 states have call predecessors, (12), 7 states have return successors, (12), 5 states have call predecessors, (12), 6 states have call successors, (12) [2023-11-19 07:40:10,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-19 07:40:12,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-19 07:40:14,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-19 07:40:19,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-19 07:40:21,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-19 07:40:23,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-19 07:40:25,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-19 07:40:27,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-19 07:40:29,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-19 07:40:31,084 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]