./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --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 64bit --witnessprinter.graph.data.programhash 4de94aaabb885b39de7c063dad9a583cbef1a5037a721fe952ddb512087f6e33 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 13:10:53,347 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 13:10:53,349 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 13:10:53,367 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 13:10:53,367 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 13:10:53,368 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 13:10:53,370 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 13:10:53,371 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 13:10:53,373 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 13:10:53,373 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 13:10:53,374 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 13:10:53,376 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 13:10:53,376 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 13:10:53,377 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 13:10:53,378 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 13:10:53,379 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 13:10:53,380 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 13:10:53,381 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 13:10:53,382 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 13:10:53,384 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 13:10:53,386 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 13:10:53,387 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 13:10:53,388 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 13:10:53,389 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 13:10:53,392 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 13:10:53,393 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 13:10:53,393 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 13:10:53,394 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 13:10:53,394 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 13:10:53,395 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 13:10:53,395 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 13:10:53,396 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 13:10:53,397 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 13:10:53,398 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 13:10:53,399 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 13:10:53,399 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 13:10:53,399 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 13:10:53,400 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 13:10:53,400 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 13:10:53,401 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 13:10:53,401 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 13:10:53,402 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-12-13 13:10:53,423 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 13:10:53,423 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 13:10:53,423 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 13:10:53,424 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 13:10:53,424 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 13:10:53,424 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 13:10:53,425 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 13:10:53,425 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 13:10:53,425 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 13:10:53,426 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 13:10:53,426 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 13:10:53,426 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 13:10:53,426 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 13:10:53,426 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 13:10:53,427 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 13:10:53,427 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 13:10:53,427 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 13:10:53,427 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 13:10:53,427 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 13:10:53,428 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 13:10:53,428 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 13:10:53,428 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:10:53,428 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 13:10:53,428 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 13:10:53,428 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 13:10:53,429 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 13:10:53,429 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 13:10:53,429 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 13:10:53,429 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 13:10:53,429 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 13:10:53,430 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 13:10:53,430 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 13:10:53,430 INFO L138 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_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4de94aaabb885b39de7c063dad9a583cbef1a5037a721fe952ddb512087f6e33 [2022-12-13 13:10:53,600 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 13:10:53,616 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 13:10:53,618 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 13:10:53,618 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 13:10:53,619 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 13:10:53,620 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c [2022-12-13 13:10:56,274 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 13:10:56,420 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 13:10:56,420 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c [2022-12-13 13:10:56,427 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/data/234ad990f/4e8c5cfb504243f38461b9ec460eebbc/FLAGdd792d57a [2022-12-13 13:10:56,438 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/data/234ad990f/4e8c5cfb504243f38461b9ec460eebbc [2022-12-13 13:10:56,440 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 13:10:56,442 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 13:10:56,443 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 13:10:56,443 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 13:10:56,446 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 13:10:56,446 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:10:56" (1/1) ... [2022-12-13 13:10:56,447 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cb7e1ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:10:56, skipping insertion in model container [2022-12-13 13:10:56,447 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:10:56" (1/1) ... [2022-12-13 13:10:56,453 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 13:10:56,478 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 13:10:56,577 WARN L237 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_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c[1120,1133] [2022-12-13 13:10:56,657 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:10:56,661 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 13:10:56,669 WARN L237 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_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c[1120,1133] [2022-12-13 13:10:56,719 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:10:56,728 INFO L208 MainTranslator]: Completed translation [2022-12-13 13:10:56,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:10:56 WrapperNode [2022-12-13 13:10:56,729 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 13:10:56,730 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 13:10:56,730 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 13:10:56,730 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 13:10:56,735 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:10:56" (1/1) ... [2022-12-13 13:10:56,745 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:10:56" (1/1) ... [2022-12-13 13:10:56,775 INFO L138 Inliner]: procedures = 11, calls = 5, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 413 [2022-12-13 13:10:56,776 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 13:10:56,776 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 13:10:56,776 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 13:10:56,776 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 13:10:56,784 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:10:56" (1/1) ... [2022-12-13 13:10:56,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:10:56" (1/1) ... [2022-12-13 13:10:56,788 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:10:56" (1/1) ... [2022-12-13 13:10:56,789 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:10:56" (1/1) ... [2022-12-13 13:10:56,798 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:10:56" (1/1) ... [2022-12-13 13:10:56,801 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:10:56" (1/1) ... [2022-12-13 13:10:56,802 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:10:56" (1/1) ... [2022-12-13 13:10:56,804 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:10:56" (1/1) ... [2022-12-13 13:10:56,808 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 13:10:56,809 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 13:10:56,809 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 13:10:56,809 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 13:10:56,809 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:10:56" (1/1) ... [2022-12-13 13:10:56,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:10:56,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:10:56,835 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 13:10:56,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 13:10:56,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 13:10:56,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 13:10:56,867 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-13 13:10:56,867 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-13 13:10:56,979 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 13:10:56,981 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 13:10:58,184 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 13:10:58,189 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 13:10:58,189 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 13:10:58,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:10:58 BoogieIcfgContainer [2022-12-13 13:10:58,190 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 13:10:58,192 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 13:10:58,192 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 13:10:58,194 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 13:10:58,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 01:10:56" (1/3) ... [2022-12-13 13:10:58,195 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e85251a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:10:58, skipping insertion in model container [2022-12-13 13:10:58,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:10:56" (2/3) ... [2022-12-13 13:10:58,195 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e85251a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:10:58, skipping insertion in model container [2022-12-13 13:10:58,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:10:58" (3/3) ... [2022-12-13 13:10:58,196 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.safe_analog_estimation_convergence.c [2022-12-13 13:10:58,209 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 13:10:58,210 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 13:10:58,243 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 13:10:58,248 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=LoopsAndPotentialCycles, 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;@4721d2b2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 13:10:58,248 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 13:10:58,251 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 15 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 13:10:58,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-13 13:10:58,257 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:10:58,257 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:10:58,258 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:10:58,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:10:58,262 INFO L85 PathProgramCache]: Analyzing trace with hash -639607165, now seen corresponding path program 1 times [2022-12-13 13:10:58,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:10:58,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657134244] [2022-12-13 13:10:58,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:10:58,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:10:58,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:10:58,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 13:10:58,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:10:58,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 13:10:58,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:10:58,540 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 13:10:58,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:10:58,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657134244] [2022-12-13 13:10:58,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657134244] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:10:58,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:10:58,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 13:10:58,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694861215] [2022-12-13 13:10:58,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:10:58,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 13:10:58,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:10:58,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 13:10:58,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 13:10:58,577 INFO L87 Difference]: Start difference. First operand has 19 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 15 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 13:10:58,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:10:58,593 INFO L93 Difference]: Finished difference Result 32 states and 43 transitions. [2022-12-13 13:10:58,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 13:10:58,595 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 17 [2022-12-13 13:10:58,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:10:58,599 INFO L225 Difference]: With dead ends: 32 [2022-12-13 13:10:58,599 INFO L226 Difference]: Without dead ends: 15 [2022-12-13 13:10:58,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 13:10:58,604 INFO L413 NwaCegarLoop]: 16 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, 16 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 [2022-12-13 13:10:58,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:10:58,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-12-13 13:10:58,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-12-13 13:10:58,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 13:10:58,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2022-12-13 13:10:58,629 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 17 [2022-12-13 13:10:58,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:10:58,629 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2022-12-13 13:10:58,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 13:10:58,630 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2022-12-13 13:10:58,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-13 13:10:58,631 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:10:58,631 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:10:58,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 13:10:58,631 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:10:58,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:10:58,632 INFO L85 PathProgramCache]: Analyzing trace with hash -324183425, now seen corresponding path program 1 times [2022-12-13 13:10:58,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:10:58,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330405031] [2022-12-13 13:10:58,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:10:58,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:10:59,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:10:59,459 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:11:00,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:11:00,299 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 13:11:00,299 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 13:11:00,301 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 13:11:00,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 13:11:00,306 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 13:11:00,309 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 13:11:00,342 WARN L321 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-12-13 13:11:00,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 01:11:00 BoogieIcfgContainer [2022-12-13 13:11:00,355 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 13:11:00,355 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 13:11:00,355 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 13:11:00,356 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 13:11:00,356 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:10:58" (3/4) ... [2022-12-13 13:11:00,359 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 13:11:00,359 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 13:11:00,360 INFO L158 Benchmark]: Toolchain (without parser) took 3917.59ms. Allocated memory was 132.1MB in the beginning and 239.1MB in the end (delta: 107.0MB). Free memory was 95.0MB in the beginning and 124.8MB in the end (delta: -29.8MB). Peak memory consumption was 80.3MB. Max. memory is 16.1GB. [2022-12-13 13:11:00,360 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 132.1MB. Free memory is still 78.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:11:00,360 INFO L158 Benchmark]: CACSL2BoogieTranslator took 286.29ms. Allocated memory is still 132.1MB. Free memory was 94.5MB in the beginning and 73.5MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-12-13 13:11:00,361 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.99ms. Allocated memory is still 132.1MB. Free memory was 73.5MB in the beginning and 68.2MB in the end (delta: 5.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 13:11:00,361 INFO L158 Benchmark]: Boogie Preprocessor took 31.90ms. Allocated memory is still 132.1MB. Free memory was 68.2MB in the beginning and 65.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:11:00,362 INFO L158 Benchmark]: RCFGBuilder took 1381.85ms. Allocated memory was 132.1MB in the beginning and 199.2MB in the end (delta: 67.1MB). Free memory was 65.1MB in the beginning and 76.6MB in the end (delta: -11.5MB). Peak memory consumption was 67.8MB. Max. memory is 16.1GB. [2022-12-13 13:11:00,362 INFO L158 Benchmark]: TraceAbstraction took 2163.07ms. Allocated memory was 199.2MB in the beginning and 239.1MB in the end (delta: 39.8MB). Free memory was 75.6MB in the beginning and 124.8MB in the end (delta: -49.2MB). Peak memory consumption was 27.4MB. Max. memory is 16.1GB. [2022-12-13 13:11:00,363 INFO L158 Benchmark]: Witness Printer took 3.61ms. Allocated memory is still 239.1MB. Free memory is still 124.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:11:00,365 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 132.1MB. Free memory is still 78.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 286.29ms. Allocated memory is still 132.1MB. Free memory was 94.5MB in the beginning and 73.5MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.99ms. Allocated memory is still 132.1MB. Free memory was 73.5MB in the beginning and 68.2MB in the end (delta: 5.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.90ms. Allocated memory is still 132.1MB. Free memory was 68.2MB in the beginning and 65.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1381.85ms. Allocated memory was 132.1MB in the beginning and 199.2MB in the end (delta: 67.1MB). Free memory was 65.1MB in the beginning and 76.6MB in the end (delta: -11.5MB). Peak memory consumption was 67.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2163.07ms. Allocated memory was 199.2MB in the beginning and 239.1MB in the end (delta: 39.8MB). Free memory was 75.6MB in the beginning and 124.8MB in the end (delta: -49.2MB). Peak memory consumption was 27.4MB. Max. memory is 16.1GB. * Witness Printer took 3.61ms. Allocated memory is still 239.1MB. Free memory is still 124.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 180, overapproximation of bitwiseAnd at line 168, overapproximation of bitwiseComplement at line 294, overapproximation of bitwiseXor at line 292. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_9 mask_SORT_9 = (SORT_9)-1 >> (sizeof(SORT_9) * 8 - 31); [L29] const SORT_9 msb_SORT_9 = (SORT_9)1 << (31 - 1); [L31] const SORT_11 mask_SORT_11 = (SORT_11)-1 >> (sizeof(SORT_11) * 8 - 16); [L32] const SORT_11 msb_SORT_11 = (SORT_11)1 << (16 - 1); [L34] const SORT_12 mask_SORT_12 = (SORT_12)-1 >> (sizeof(SORT_12) * 8 - 8); [L35] const SORT_12 msb_SORT_12 = (SORT_12)1 << (8 - 1); [L37] const SORT_20 mask_SORT_20 = (SORT_20)-1 >> (sizeof(SORT_20) * 8 - 32); [L38] const SORT_20 msb_SORT_20 = (SORT_20)1 << (32 - 1); [L40] const SORT_23 mask_SORT_23 = (SORT_23)-1 >> (sizeof(SORT_23) * 8 - 17); [L41] const SORT_23 msb_SORT_23 = (SORT_23)1 << (17 - 1); [L43] const SORT_26 mask_SORT_26 = (SORT_26)-1 >> (sizeof(SORT_26) * 8 - 18); [L44] const SORT_26 msb_SORT_26 = (SORT_26)1 << (18 - 1); [L46] const SORT_29 mask_SORT_29 = (SORT_29)-1 >> (sizeof(SORT_29) * 8 - 19); [L47] const SORT_29 msb_SORT_29 = (SORT_29)1 << (19 - 1); [L49] const SORT_32 mask_SORT_32 = (SORT_32)-1 >> (sizeof(SORT_32) * 8 - 20); [L50] const SORT_32 msb_SORT_32 = (SORT_32)1 << (20 - 1); [L52] const SORT_35 mask_SORT_35 = (SORT_35)-1 >> (sizeof(SORT_35) * 8 - 21); [L53] const SORT_35 msb_SORT_35 = (SORT_35)1 << (21 - 1); [L55] const SORT_38 mask_SORT_38 = (SORT_38)-1 >> (sizeof(SORT_38) * 8 - 22); [L56] const SORT_38 msb_SORT_38 = (SORT_38)1 << (22 - 1); [L58] const SORT_41 mask_SORT_41 = (SORT_41)-1 >> (sizeof(SORT_41) * 8 - 23); [L59] const SORT_41 msb_SORT_41 = (SORT_41)1 << (23 - 1); [L61] const SORT_44 mask_SORT_44 = (SORT_44)-1 >> (sizeof(SORT_44) * 8 - 24); [L62] const SORT_44 msb_SORT_44 = (SORT_44)1 << (24 - 1); [L64] const SORT_47 mask_SORT_47 = (SORT_47)-1 >> (sizeof(SORT_47) * 8 - 25); [L65] const SORT_47 msb_SORT_47 = (SORT_47)1 << (25 - 1); [L67] const SORT_50 mask_SORT_50 = (SORT_50)-1 >> (sizeof(SORT_50) * 8 - 26); [L68] const SORT_50 msb_SORT_50 = (SORT_50)1 << (26 - 1); [L70] const SORT_53 mask_SORT_53 = (SORT_53)-1 >> (sizeof(SORT_53) * 8 - 27); [L71] const SORT_53 msb_SORT_53 = (SORT_53)1 << (27 - 1); [L73] const SORT_56 mask_SORT_56 = (SORT_56)-1 >> (sizeof(SORT_56) * 8 - 28); [L74] const SORT_56 msb_SORT_56 = (SORT_56)1 << (28 - 1); [L76] const SORT_59 mask_SORT_59 = (SORT_59)-1 >> (sizeof(SORT_59) * 8 - 29); [L77] const SORT_59 msb_SORT_59 = (SORT_59)1 << (29 - 1); [L79] const SORT_62 mask_SORT_62 = (SORT_62)-1 >> (sizeof(SORT_62) * 8 - 30); [L80] const SORT_62 msb_SORT_62 = (SORT_62)1 << (30 - 1); [L82] const SORT_72 mask_SORT_72 = (SORT_72)-1 >> (sizeof(SORT_72) * 8 - 3); [L83] const SORT_72 msb_SORT_72 = (SORT_72)1 << (3 - 1); [L85] const SORT_96 mask_SORT_96 = (SORT_96)-1 >> (sizeof(SORT_96) * 8 - 4); [L86] const SORT_96 msb_SORT_96 = (SORT_96)1 << (4 - 1); [L88] const SORT_101 mask_SORT_101 = (SORT_101)-1 >> (sizeof(SORT_101) * 8 - 14); [L89] const SORT_101 msb_SORT_101 = (SORT_101)1 << (14 - 1); [L91] const SORT_105 mask_SORT_105 = (SORT_105)-1 >> (sizeof(SORT_105) * 8 - 2); [L92] const SORT_105 msb_SORT_105 = (SORT_105)1 << (2 - 1); [L94] const SORT_154 mask_SORT_154 = (SORT_154)-1 >> (sizeof(SORT_154) * 8 - 7); [L95] const SORT_154 msb_SORT_154 = (SORT_154)1 << (7 - 1); [L97] const SORT_1 var_7 = 0; [L98] const SORT_1 var_8 = 1; [L99] const SORT_9 var_10 = 0; [L100] const SORT_12 var_13 = 0; [L101] const SORT_12 var_14 = 200; [L102] const SORT_72 var_73 = 5; [L103] const SORT_11 var_75 = 0; [L104] const SORT_105 var_106 = 1; [L105] const SORT_12 var_112 = 127; [L106] const SORT_11 var_119 = 64; [L107] const SORT_11 var_121 = 1; [L108] const SORT_11 var_123 = 127; [L109] const SORT_11 var_126 = 200; [L110] const SORT_72 var_131 = 4; [L111] const SORT_72 var_134 = 6; [L112] const SORT_96 var_138 = 9; [L113] const SORT_154 var_155 = 64; [L114] const SORT_72 var_166 = 0; [L115] const SORT_96 var_169 = 0; [L117] SORT_1 input_2; [L118] SORT_1 input_3; [L119] SORT_1 input_4; [L121] SORT_1 state_5 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L122] SORT_11 state_17 = __VERIFIER_nondet_ushort() & mask_SORT_11; [L123] SORT_11 state_76 = __VERIFIER_nondet_ushort() & mask_SORT_11; [L124] SORT_96 state_97 = __VERIFIER_nondet_uchar() & mask_SORT_96; [L125] SORT_96 state_100 = __VERIFIER_nondet_uchar() & mask_SORT_96; [L127] SORT_11 init_77_arg_1 = var_75; [L128] state_76 = init_77_arg_1 VAL [init_77_arg_1=0, mask_SORT_1=1, mask_SORT_101=16383, mask_SORT_105=3, mask_SORT_11=65535, mask_SORT_12=255, mask_SORT_154=127, mask_SORT_20=4294967295, mask_SORT_23=4294967295, mask_SORT_26=4294967295, mask_SORT_29=4294967295, mask_SORT_32=4294967295, mask_SORT_35=4294967295, mask_SORT_38=4294967295, mask_SORT_41=4294967295, mask_SORT_44=4294967295, mask_SORT_47=4294967295, mask_SORT_50=4294967295, mask_SORT_53=4294967295, mask_SORT_56=4294967295, mask_SORT_59=4294967295, mask_SORT_62=4294967295, mask_SORT_72=7, mask_SORT_9=4294967295, mask_SORT_96=15, msb_SORT_1=1, msb_SORT_101=8192, msb_SORT_105=2, msb_SORT_11=32768, msb_SORT_12=128, msb_SORT_154=64, msb_SORT_20=2147483648, msb_SORT_23=65536, msb_SORT_26=131072, msb_SORT_29=262144, msb_SORT_32=524288, msb_SORT_35=1048576, msb_SORT_38=2097152, msb_SORT_41=4194304, msb_SORT_44=8388608, msb_SORT_47=16777216, msb_SORT_50=33554432, msb_SORT_53=67108864, msb_SORT_56=134217728, msb_SORT_59=268435456, msb_SORT_62=536870912, msb_SORT_72=4, msb_SORT_9=1073741824, msb_SORT_96=8, state_100=0, state_17=0, state_5=12, state_76=0, state_97=6, var_10=0, var_106=1, var_112=127, var_119=64, var_121=1, var_123=127, var_126=200, var_13=0, var_131=4, var_134=6, var_138=9, var_14=200, var_155=64, var_166=0, var_169=0, var_7=0, var_73=5, var_75=0, var_8=1] [L131] input_2 = __VERIFIER_nondet_uchar() [L132] input_3 = __VERIFIER_nondet_uchar() [L133] input_3 = input_3 & mask_SORT_1 [L134] input_4 = __VERIFIER_nondet_uchar() [L135] input_4 = input_4 & mask_SORT_1 [L137] SORT_1 var_84_arg_0 = state_5; [L138] SORT_1 var_84 = ~var_84_arg_0; [L139] SORT_1 var_85_arg_0 = var_84; [L140] SORT_1 var_85 = ~var_85_arg_0; [L141] SORT_1 var_86_arg_0 = state_5; [L142] SORT_1 var_86_arg_1 = var_85; [L143] SORT_1 var_86 = var_86_arg_0 | var_86_arg_1; [L144] var_86 = var_86 & mask_SORT_1 [L145] SORT_1 constr_87_arg_0 = var_86; VAL [constr_87_arg_0=7, init_77_arg_1=0, input_2=1, input_3=3, input_4=253, mask_SORT_1=1, mask_SORT_101=16383, mask_SORT_105=3, mask_SORT_11=65535, mask_SORT_12=255, mask_SORT_154=127, mask_SORT_20=4294967295, mask_SORT_23=4294967295, mask_SORT_26=4294967295, mask_SORT_29=4294967295, mask_SORT_32=4294967295, mask_SORT_35=4294967295, mask_SORT_38=4294967295, mask_SORT_41=4294967295, mask_SORT_44=4294967295, mask_SORT_47=4294967295, mask_SORT_50=4294967295, mask_SORT_53=4294967295, mask_SORT_56=4294967295, mask_SORT_59=4294967295, mask_SORT_62=4294967295, mask_SORT_72=7, mask_SORT_9=4294967295, mask_SORT_96=15, msb_SORT_1=1, msb_SORT_101=8192, msb_SORT_105=2, msb_SORT_11=32768, msb_SORT_12=128, msb_SORT_154=64, msb_SORT_20=2147483648, msb_SORT_23=65536, msb_SORT_26=131072, msb_SORT_29=262144, msb_SORT_32=524288, msb_SORT_35=1048576, msb_SORT_38=2097152, msb_SORT_41=4194304, msb_SORT_44=8388608, msb_SORT_47=16777216, msb_SORT_50=33554432, msb_SORT_53=67108864, msb_SORT_56=134217728, msb_SORT_59=268435456, msb_SORT_62=536870912, msb_SORT_72=4, msb_SORT_9=1073741824, msb_SORT_96=8, state_100=0, state_17=0, state_5=12, state_76=0, state_97=6, var_10=0, var_106=1, var_112=127, var_119=64, var_121=1, var_123=127, var_126=200, var_13=0, var_131=4, var_134=6, var_138=9, var_14=200, var_155=64, var_166=0, var_169=0, var_7=0, var_73=5, var_75=0, var_8=1, var_84=2, var_84_arg_0=12, var_85=7, var_85_arg_0=2, var_86=7, var_86_arg_0=12, var_86_arg_1=7] [L146] CALL assume_abort_if_not(constr_87_arg_0) VAL [\old(cond)=7] [L21] COND FALSE !(!cond) VAL [\old(cond)=7, cond=7] [L146] RET assume_abort_if_not(constr_87_arg_0) VAL [constr_87_arg_0=7, init_77_arg_1=0, input_2=1, input_3=3, input_4=253, mask_SORT_1=1, mask_SORT_101=16383, mask_SORT_105=3, mask_SORT_11=65535, mask_SORT_12=255, mask_SORT_154=127, mask_SORT_20=4294967295, mask_SORT_23=4294967295, mask_SORT_26=4294967295, mask_SORT_29=4294967295, mask_SORT_32=4294967295, mask_SORT_35=4294967295, mask_SORT_38=4294967295, mask_SORT_41=4294967295, mask_SORT_44=4294967295, mask_SORT_47=4294967295, mask_SORT_50=4294967295, mask_SORT_53=4294967295, mask_SORT_56=4294967295, mask_SORT_59=4294967295, mask_SORT_62=4294967295, mask_SORT_72=7, mask_SORT_9=4294967295, mask_SORT_96=15, msb_SORT_1=1, msb_SORT_101=8192, msb_SORT_105=2, msb_SORT_11=32768, msb_SORT_12=128, msb_SORT_154=64, msb_SORT_20=2147483648, msb_SORT_23=65536, msb_SORT_26=131072, msb_SORT_29=262144, msb_SORT_32=524288, msb_SORT_35=1048576, msb_SORT_38=2097152, msb_SORT_41=4194304, msb_SORT_44=8388608, msb_SORT_47=16777216, msb_SORT_50=33554432, msb_SORT_53=67108864, msb_SORT_56=134217728, msb_SORT_59=268435456, msb_SORT_62=536870912, msb_SORT_72=4, msb_SORT_9=1073741824, msb_SORT_96=8, state_100=0, state_17=0, state_5=12, state_76=0, state_97=6, var_10=0, var_106=1, var_112=127, var_119=64, var_121=1, var_123=127, var_126=200, var_13=0, var_131=4, var_134=6, var_138=9, var_14=200, var_155=64, var_166=0, var_169=0, var_7=0, var_73=5, var_75=0, var_8=1, var_84=2, var_84_arg_0=12, var_85=7, var_85_arg_0=2, var_86=7, var_86_arg_0=12, var_86_arg_1=7] [L147] SORT_1 var_88_arg_0 = var_8; [L148] var_88_arg_0 = var_88_arg_0 & mask_SORT_1 [L149] SORT_11 var_88 = var_88_arg_0; [L150] SORT_11 var_89_arg_0 = state_76; [L151] SORT_11 var_89_arg_1 = var_88; [L152] SORT_1 var_89 = var_89_arg_0 <= var_89_arg_1; [L153] SORT_1 var_90_arg_0 = input_4; [L154] SORT_1 var_90_arg_1 = var_89; [L155] SORT_1 var_90 = var_90_arg_0 ^ var_90_arg_1; [L156] SORT_1 var_91_arg_0 = var_90; [L157] SORT_1 var_91 = ~var_91_arg_0; [L158] SORT_1 var_92_arg_0 = var_90; [L159] SORT_1 var_92 = ~var_92_arg_0; [L160] SORT_1 var_93_arg_0 = var_91; [L161] SORT_1 var_93_arg_1 = var_92; [L162] SORT_1 var_93 = var_93_arg_0 | var_93_arg_1; [L163] var_93 = var_93 & mask_SORT_1 [L164] SORT_1 constr_94_arg_0 = var_93; VAL [constr_87_arg_0=7, constr_94_arg_0=1, init_77_arg_1=0, input_2=1, input_3=3, input_4=253, mask_SORT_1=1, mask_SORT_101=16383, mask_SORT_105=3, mask_SORT_11=65535, mask_SORT_12=255, mask_SORT_154=127, mask_SORT_20=4294967295, mask_SORT_23=4294967295, mask_SORT_26=4294967295, mask_SORT_29=4294967295, mask_SORT_32=4294967295, mask_SORT_35=4294967295, mask_SORT_38=4294967295, mask_SORT_41=4294967295, mask_SORT_44=4294967295, mask_SORT_47=4294967295, mask_SORT_50=4294967295, mask_SORT_53=4294967295, mask_SORT_56=4294967295, mask_SORT_59=4294967295, mask_SORT_62=4294967295, mask_SORT_72=7, mask_SORT_9=4294967295, mask_SORT_96=15, msb_SORT_1=1, msb_SORT_101=8192, msb_SORT_105=2, msb_SORT_11=32768, msb_SORT_12=128, msb_SORT_154=64, msb_SORT_20=2147483648, msb_SORT_23=65536, msb_SORT_26=131072, msb_SORT_29=262144, msb_SORT_32=524288, msb_SORT_35=1048576, msb_SORT_38=2097152, msb_SORT_41=4194304, msb_SORT_44=8388608, msb_SORT_47=16777216, msb_SORT_50=33554432, msb_SORT_53=67108864, msb_SORT_56=134217728, msb_SORT_59=268435456, msb_SORT_62=536870912, msb_SORT_72=4, msb_SORT_9=1073741824, msb_SORT_96=8, state_100=0, state_17=0, state_5=12, state_76=0, state_97=6, var_10=0, var_106=1, var_112=127, var_119=64, var_121=1, var_123=127, var_126=200, var_13=0, var_131=4, var_134=6, var_138=9, var_14=200, var_155=64, var_166=0, var_169=0, var_7=0, var_73=5, var_75=0, var_8=1, var_84=2, var_84_arg_0=12, var_85=7, var_85_arg_0=2, var_86=7, var_86_arg_0=12, var_86_arg_1=7, var_88=1, var_88_arg_0=1, var_89=1, var_89_arg_0=0, var_89_arg_1=1, var_90=253, var_90_arg_0=253, var_90_arg_1=1, var_91=255, var_91_arg_0=253, var_92=255, var_92_arg_0=253, var_93=1, var_93_arg_0=255, var_93_arg_1=255] [L165] CALL assume_abort_if_not(constr_94_arg_0) VAL [\old(cond)=1] [L21] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L165] RET assume_abort_if_not(constr_94_arg_0) VAL [constr_87_arg_0=7, constr_94_arg_0=1, init_77_arg_1=0, input_2=1, input_3=3, input_4=253, mask_SORT_1=1, mask_SORT_101=16383, mask_SORT_105=3, mask_SORT_11=65535, mask_SORT_12=255, mask_SORT_154=127, mask_SORT_20=4294967295, mask_SORT_23=4294967295, mask_SORT_26=4294967295, mask_SORT_29=4294967295, mask_SORT_32=4294967295, mask_SORT_35=4294967295, mask_SORT_38=4294967295, mask_SORT_41=4294967295, mask_SORT_44=4294967295, mask_SORT_47=4294967295, mask_SORT_50=4294967295, mask_SORT_53=4294967295, mask_SORT_56=4294967295, mask_SORT_59=4294967295, mask_SORT_62=4294967295, mask_SORT_72=7, mask_SORT_9=4294967295, mask_SORT_96=15, msb_SORT_1=1, msb_SORT_101=8192, msb_SORT_105=2, msb_SORT_11=32768, msb_SORT_12=128, msb_SORT_154=64, msb_SORT_20=2147483648, msb_SORT_23=65536, msb_SORT_26=131072, msb_SORT_29=262144, msb_SORT_32=524288, msb_SORT_35=1048576, msb_SORT_38=2097152, msb_SORT_41=4194304, msb_SORT_44=8388608, msb_SORT_47=16777216, msb_SORT_50=33554432, msb_SORT_53=67108864, msb_SORT_56=134217728, msb_SORT_59=268435456, msb_SORT_62=536870912, msb_SORT_72=4, msb_SORT_9=1073741824, msb_SORT_96=8, state_100=0, state_17=0, state_5=12, state_76=0, state_97=6, var_10=0, var_106=1, var_112=127, var_119=64, var_121=1, var_123=127, var_126=200, var_13=0, var_131=4, var_134=6, var_138=9, var_14=200, var_155=64, var_166=0, var_169=0, var_7=0, var_73=5, var_75=0, var_8=1, var_84=2, var_84_arg_0=12, var_85=7, var_85_arg_0=2, var_86=7, var_86_arg_0=12, var_86_arg_1=7, var_88=1, var_88_arg_0=1, var_89=1, var_89_arg_0=0, var_89_arg_1=1, var_90=253, var_90_arg_0=253, var_90_arg_1=1, var_91=255, var_91_arg_0=253, var_92=255, var_92_arg_0=253, var_93=1, var_93_arg_0=255, var_93_arg_1=255] [L167] SORT_72 var_74_arg_0 = var_73; [L168] var_74_arg_0 = var_74_arg_0 & mask_SORT_72 [L169] SORT_11 var_74 = var_74_arg_0; [L170] SORT_11 var_78_arg_0 = var_74; [L171] SORT_11 var_78_arg_1 = state_76; [L172] SORT_1 var_78 = var_78_arg_0 < var_78_arg_1; [L173] SORT_1 var_15_arg_0 = input_3; [L174] SORT_12 var_15_arg_1 = var_14; [L175] SORT_12 var_15_arg_2 = var_13; [L176] SORT_12 var_15 = var_15_arg_0 ? var_15_arg_1 : var_15_arg_2; [L177] var_15 = var_15 & mask_SORT_12 [L178] SORT_12 var_16_arg_0 = var_13; [L179] SORT_12 var_16_arg_1 = var_15; [L180] SORT_11 var_16 = ((SORT_11)var_16_arg_0 << 8) | var_16_arg_1; [L181] SORT_11 var_18_arg_0 = var_16; [L182] SORT_11 var_18_arg_1 = state_17; [L183] SORT_11 var_18 = var_18_arg_0 - var_18_arg_1; [L184] var_18 = var_18 & mask_SORT_11 [L185] SORT_11 var_19_arg_0 = var_18; [L186] SORT_1 var_19 = var_19_arg_0 >> 15; [L187] SORT_1 var_21_arg_0 = var_19; [L188] SORT_9 var_21_arg_1 = var_10; [L189] SORT_20 var_21 = ((SORT_20)var_21_arg_0 << 31) | var_21_arg_1; [L190] var_21 = var_21 & mask_SORT_20 [L191] SORT_11 var_64_arg_0 = var_18; [L192] SORT_1 var_64 = var_64_arg_0 >> 15; [L193] SORT_11 var_61_arg_0 = var_18; [L194] SORT_1 var_61 = var_61_arg_0 >> 15; [L195] SORT_11 var_58_arg_0 = var_18; [L196] SORT_1 var_58 = var_58_arg_0 >> 15; [L197] SORT_11 var_55_arg_0 = var_18; [L198] SORT_1 var_55 = var_55_arg_0 >> 15; [L199] SORT_11 var_52_arg_0 = var_18; [L200] SORT_1 var_52 = var_52_arg_0 >> 15; [L201] SORT_11 var_49_arg_0 = var_18; [L202] SORT_1 var_49 = var_49_arg_0 >> 15; [L203] SORT_11 var_46_arg_0 = var_18; [L204] SORT_1 var_46 = var_46_arg_0 >> 15; [L205] SORT_11 var_43_arg_0 = var_18; [L206] SORT_1 var_43 = var_43_arg_0 >> 15; [L207] SORT_11 var_40_arg_0 = var_18; [L208] SORT_1 var_40 = var_40_arg_0 >> 15; [L209] SORT_11 var_37_arg_0 = var_18; [L210] SORT_1 var_37 = var_37_arg_0 >> 15; [L211] SORT_11 var_34_arg_0 = var_18; [L212] SORT_1 var_34 = var_34_arg_0 >> 15; [L213] SORT_11 var_31_arg_0 = var_18; [L214] SORT_1 var_31 = var_31_arg_0 >> 15; [L215] SORT_11 var_28_arg_0 = var_18; [L216] SORT_1 var_28 = var_28_arg_0 >> 15; [L217] SORT_11 var_25_arg_0 = var_18; [L218] SORT_1 var_25 = var_25_arg_0 >> 15; [L219] SORT_11 var_22_arg_0 = var_18; [L220] SORT_1 var_22 = var_22_arg_0 >> 15; [L221] SORT_1 var_24_arg_0 = var_22; [L222] SORT_11 var_24_arg_1 = var_18; [L223] SORT_23 var_24 = ((SORT_23)var_24_arg_0 << 16) | var_24_arg_1; [L224] var_24 = var_24 & mask_SORT_23 [L225] SORT_1 var_27_arg_0 = var_25; [L226] SORT_23 var_27_arg_1 = var_24; [L227] SORT_26 var_27 = ((SORT_26)var_27_arg_0 << 17) | var_27_arg_1; [L228] var_27 = var_27 & mask_SORT_26 [L229] SORT_1 var_30_arg_0 = var_28; [L230] SORT_26 var_30_arg_1 = var_27; [L231] SORT_29 var_30 = ((SORT_29)var_30_arg_0 << 18) | var_30_arg_1; [L232] var_30 = var_30 & mask_SORT_29 [L233] SORT_1 var_33_arg_0 = var_31; [L234] SORT_29 var_33_arg_1 = var_30; [L235] SORT_32 var_33 = ((SORT_32)var_33_arg_0 << 19) | var_33_arg_1; [L236] var_33 = var_33 & mask_SORT_32 [L237] SORT_1 var_36_arg_0 = var_34; [L238] SORT_32 var_36_arg_1 = var_33; [L239] SORT_35 var_36 = ((SORT_35)var_36_arg_0 << 20) | var_36_arg_1; [L240] var_36 = var_36 & mask_SORT_35 [L241] SORT_1 var_39_arg_0 = var_37; [L242] SORT_35 var_39_arg_1 = var_36; [L243] SORT_38 var_39 = ((SORT_38)var_39_arg_0 << 21) | var_39_arg_1; [L244] var_39 = var_39 & mask_SORT_38 [L245] SORT_1 var_42_arg_0 = var_40; [L246] SORT_38 var_42_arg_1 = var_39; [L247] SORT_41 var_42 = ((SORT_41)var_42_arg_0 << 22) | var_42_arg_1; [L248] var_42 = var_42 & mask_SORT_41 [L249] SORT_1 var_45_arg_0 = var_43; [L250] SORT_41 var_45_arg_1 = var_42; [L251] SORT_44 var_45 = ((SORT_44)var_45_arg_0 << 23) | var_45_arg_1; [L252] var_45 = var_45 & mask_SORT_44 [L253] SORT_1 var_48_arg_0 = var_46; [L254] SORT_44 var_48_arg_1 = var_45; [L255] SORT_47 var_48 = ((SORT_47)var_48_arg_0 << 24) | var_48_arg_1; [L256] var_48 = var_48 & mask_SORT_47 [L257] SORT_1 var_51_arg_0 = var_49; [L258] SORT_47 var_51_arg_1 = var_48; [L259] SORT_50 var_51 = ((SORT_50)var_51_arg_0 << 25) | var_51_arg_1; [L260] var_51 = var_51 & mask_SORT_50 [L261] SORT_1 var_54_arg_0 = var_52; [L262] SORT_50 var_54_arg_1 = var_51; [L263] SORT_53 var_54 = ((SORT_53)var_54_arg_0 << 26) | var_54_arg_1; [L264] var_54 = var_54 & mask_SORT_53 [L265] SORT_1 var_57_arg_0 = var_55; [L266] SORT_53 var_57_arg_1 = var_54; [L267] SORT_56 var_57 = ((SORT_56)var_57_arg_0 << 27) | var_57_arg_1; [L268] var_57 = var_57 & mask_SORT_56 [L269] SORT_1 var_60_arg_0 = var_58; [L270] SORT_56 var_60_arg_1 = var_57; [L271] SORT_59 var_60 = ((SORT_59)var_60_arg_0 << 28) | var_60_arg_1; [L272] var_60 = var_60 & mask_SORT_59 [L273] SORT_1 var_63_arg_0 = var_61; [L274] SORT_59 var_63_arg_1 = var_60; [L275] SORT_62 var_63 = ((SORT_62)var_63_arg_0 << 29) | var_63_arg_1; [L276] var_63 = var_63 & mask_SORT_62 [L277] SORT_1 var_65_arg_0 = var_64; [L278] SORT_62 var_65_arg_1 = var_63; [L279] SORT_9 var_65 = ((SORT_9)var_65_arg_0 << 30) | var_65_arg_1; [L280] SORT_9 var_66_arg_0 = var_65; [L281] var_66_arg_0 = var_66_arg_0 & mask_SORT_9 [L282] SORT_20 var_66 = var_66_arg_0; [L283] SORT_20 var_67_arg_0 = var_21; [L284] SORT_20 var_67_arg_1 = var_66; [L285] SORT_1 var_67 = var_67_arg_0 <= var_67_arg_1; [L286] SORT_1 var_68_arg_0 = var_67; [L287] SORT_1 var_68_arg_1 = var_8; [L288] SORT_1 var_68_arg_2 = var_7; [L289] SORT_1 var_68 = var_68_arg_0 ? var_68_arg_1 : var_68_arg_2; [L290] SORT_1 var_69_arg_0 = input_3; [L291] SORT_1 var_69_arg_1 = var_68; [L292] SORT_1 var_69 = var_69_arg_0 ^ var_69_arg_1; [L293] SORT_1 var_70_arg_0 = var_69; [L294] SORT_1 var_70 = ~var_70_arg_0; [L295] SORT_1 var_79_arg_0 = var_78; [L296] SORT_1 var_79_arg_1 = var_70; [L297] SORT_1 var_79_arg_2 = var_8; [L298] SORT_1 var_79 = var_79_arg_0 ? var_79_arg_1 : var_79_arg_2; [L299] SORT_1 var_80_arg_0 = var_79; [L300] SORT_1 var_80 = ~var_80_arg_0; [L301] SORT_1 var_81_arg_0 = var_79; [L302] SORT_1 var_81 = ~var_81_arg_0; [L303] SORT_1 var_82_arg_0 = var_80; [L304] SORT_1 var_82_arg_1 = var_81; [L305] SORT_1 var_82 = var_82_arg_0 & var_82_arg_1; [L306] var_82 = var_82 & mask_SORT_1 [L307] SORT_1 bad_83_arg_0 = var_82; [L308] CALL __VERIFIER_assert(!(bad_83_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.1s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 16 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 16 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 4/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 13:11:00,381 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --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 64bit --witnessprinter.graph.data.programhash 4de94aaabb885b39de7c063dad9a583cbef1a5037a721fe952ddb512087f6e33 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 13:11:01,955 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 13:11:01,956 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 13:11:01,971 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 13:11:01,972 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 13:11:01,972 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 13:11:01,973 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 13:11:01,974 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 13:11:01,975 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 13:11:01,976 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 13:11:01,976 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 13:11:01,977 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 13:11:01,977 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 13:11:01,978 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 13:11:01,979 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 13:11:01,979 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 13:11:01,980 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 13:11:01,980 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 13:11:01,981 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 13:11:01,983 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 13:11:01,984 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 13:11:01,985 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 13:11:01,986 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 13:11:01,986 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 13:11:01,988 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 13:11:01,989 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 13:11:01,989 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 13:11:01,989 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 13:11:01,990 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 13:11:01,990 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 13:11:01,990 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 13:11:01,991 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 13:11:01,991 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 13:11:01,992 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 13:11:01,999 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 13:11:01,999 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 13:11:02,000 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 13:11:02,000 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 13:11:02,001 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 13:11:02,002 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 13:11:02,002 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 13:11:02,003 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-12-13 13:11:02,028 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 13:11:02,028 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 13:11:02,028 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 13:11:02,029 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 13:11:02,029 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 13:11:02,030 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 13:11:02,030 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 13:11:02,031 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 13:11:02,031 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 13:11:02,031 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 13:11:02,031 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 13:11:02,031 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 13:11:02,032 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 13:11:02,032 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 13:11:02,032 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 13:11:02,032 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 13:11:02,032 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 13:11:02,033 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 13:11:02,033 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 13:11:02,033 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 13:11:02,033 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 13:11:02,033 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 13:11:02,033 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 13:11:02,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:11:02,034 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 13:11:02,034 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 13:11:02,034 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 13:11:02,034 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 13:11:02,034 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 13:11:02,034 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 13:11:02,035 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 13:11:02,035 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 13:11:02,035 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 13:11:02,035 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 13:11:02,035 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 13:11:02,035 INFO L138 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_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4de94aaabb885b39de7c063dad9a583cbef1a5037a721fe952ddb512087f6e33 [2022-12-13 13:11:02,275 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 13:11:02,292 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 13:11:02,294 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 13:11:02,295 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 13:11:02,295 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 13:11:02,296 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c [2022-12-13 13:11:04,767 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 13:11:04,945 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 13:11:04,945 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c [2022-12-13 13:11:04,956 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/data/264d69381/b5e8ac2062df41e3928f5f4d6053b1f1/FLAG2c6a2f847 [2022-12-13 13:11:05,332 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/data/264d69381/b5e8ac2062df41e3928f5f4d6053b1f1 [2022-12-13 13:11:05,335 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 13:11:05,337 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 13:11:05,338 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 13:11:05,339 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 13:11:05,343 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 13:11:05,344 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:11:05" (1/1) ... [2022-12-13 13:11:05,345 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@265518e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:11:05, skipping insertion in model container [2022-12-13 13:11:05,345 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:11:05" (1/1) ... [2022-12-13 13:11:05,353 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 13:11:05,384 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 13:11:05,481 WARN L237 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_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c[1120,1133] [2022-12-13 13:11:05,561 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:11:05,565 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 13:11:05,572 WARN L237 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_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c[1120,1133] [2022-12-13 13:11:05,620 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:11:05,629 INFO L208 MainTranslator]: Completed translation [2022-12-13 13:11:05,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:11:05 WrapperNode [2022-12-13 13:11:05,630 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 13:11:05,630 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 13:11:05,630 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 13:11:05,630 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 13:11:05,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:11:05" (1/1) ... [2022-12-13 13:11:05,644 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:11:05" (1/1) ... [2022-12-13 13:11:05,671 INFO L138 Inliner]: procedures = 11, calls = 5, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 413 [2022-12-13 13:11:05,671 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 13:11:05,672 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 13:11:05,672 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 13:11:05,672 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 13:11:05,679 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:11:05" (1/1) ... [2022-12-13 13:11:05,679 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:11:05" (1/1) ... [2022-12-13 13:11:05,683 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:11:05" (1/1) ... [2022-12-13 13:11:05,683 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:11:05" (1/1) ... [2022-12-13 13:11:05,690 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:11:05" (1/1) ... [2022-12-13 13:11:05,693 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:11:05" (1/1) ... [2022-12-13 13:11:05,694 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:11:05" (1/1) ... [2022-12-13 13:11:05,696 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:11:05" (1/1) ... [2022-12-13 13:11:05,699 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 13:11:05,700 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 13:11:05,700 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 13:11:05,700 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 13:11:05,700 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:11:05" (1/1) ... [2022-12-13 13:11:05,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:11:05,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:11:05,723 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 13:11:05,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 13:11:05,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 13:11:05,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 13:11:05,754 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-13 13:11:05,755 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-13 13:11:05,872 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 13:11:05,874 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 13:11:06,264 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 13:11:06,270 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 13:11:06,271 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 13:11:06,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:11:06 BoogieIcfgContainer [2022-12-13 13:11:06,272 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 13:11:06,275 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 13:11:06,275 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 13:11:06,278 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 13:11:06,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 01:11:05" (1/3) ... [2022-12-13 13:11:06,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@190174c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:11:06, skipping insertion in model container [2022-12-13 13:11:06,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:11:05" (2/3) ... [2022-12-13 13:11:06,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@190174c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:11:06, skipping insertion in model container [2022-12-13 13:11:06,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:11:06" (3/3) ... [2022-12-13 13:11:06,281 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.safe_analog_estimation_convergence.c [2022-12-13 13:11:06,295 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 13:11:06,295 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 13:11:06,327 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 13:11:06,332 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=LoopsAndPotentialCycles, 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;@9945d36, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 13:11:06,332 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 13:11:06,335 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 15 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 13:11:06,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-13 13:11:06,341 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:11:06,341 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:11:06,342 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:11:06,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:11:06,350 INFO L85 PathProgramCache]: Analyzing trace with hash -639607165, now seen corresponding path program 1 times [2022-12-13 13:11:06,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 13:11:06,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [134514267] [2022-12-13 13:11:06,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:11:06,361 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 13:11:06,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 13:11:06,363 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 13:11:06,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-13 13:11:06,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:11:06,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 13:11:06,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:11:06,553 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 13:11:06,553 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:11:06,554 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 13:11:06,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [134514267] [2022-12-13 13:11:06,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [134514267] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:11:06,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:11:06,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 13:11:06,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436589015] [2022-12-13 13:11:06,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:11:06,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 13:11:06,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 13:11:06,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 13:11:06,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 13:11:06,588 INFO L87 Difference]: Start difference. First operand has 19 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 15 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 13:11:06,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:11:06,602 INFO L93 Difference]: Finished difference Result 32 states and 43 transitions. [2022-12-13 13:11:06,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 13:11:06,604 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 17 [2022-12-13 13:11:06,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:11:06,608 INFO L225 Difference]: With dead ends: 32 [2022-12-13 13:11:06,608 INFO L226 Difference]: Without dead ends: 15 [2022-12-13 13:11:06,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 13:11:06,617 INFO L413 NwaCegarLoop]: 16 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, 16 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 [2022-12-13 13:11:06,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:11:06,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-12-13 13:11:06,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-12-13 13:11:06,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 13:11:06,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2022-12-13 13:11:06,643 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 17 [2022-12-13 13:11:06,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:11:06,643 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2022-12-13 13:11:06,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 13:11:06,644 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2022-12-13 13:11:06,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-13 13:11:06,644 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:11:06,645 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:11:06,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-13 13:11:06,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 13:11:06,847 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:11:06,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:11:06,849 INFO L85 PathProgramCache]: Analyzing trace with hash -324183425, now seen corresponding path program 1 times [2022-12-13 13:11:06,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 13:11:06,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1066274526] [2022-12-13 13:11:06,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:11:06,852 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 13:11:06,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 13:11:06,855 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 13:11:06,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-13 13:11:07,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:11:07,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-13 13:11:07,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:11:07,389 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 13:11:07,390 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:11:07,390 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 13:11:07,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1066274526] [2022-12-13 13:11:07,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1066274526] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:11:07,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:11:07,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 13:11:07,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749674526] [2022-12-13 13:11:07,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:11:07,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 13:11:07,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 13:11:07,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:11:07,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:11:07,393 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 13:11:07,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:11:07,540 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2022-12-13 13:11:07,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 13:11:07,541 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2022-12-13 13:11:07,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:11:07,542 INFO L225 Difference]: With dead ends: 29 [2022-12-13 13:11:07,542 INFO L226 Difference]: Without dead ends: 27 [2022-12-13 13:11:07,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 13:11:07,543 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 6 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 13:11:07,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 50 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 13:11:07,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-12-13 13:11:07,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 21. [2022-12-13 13:11:07,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 states have internal predecessors, (16), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-13 13:11:07,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2022-12-13 13:11:07,549 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 17 [2022-12-13 13:11:07,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:11:07,549 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2022-12-13 13:11:07,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 13:11:07,549 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2022-12-13 13:11:07,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-12-13 13:11:07,550 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:11:07,550 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-12-13 13:11:07,561 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-13 13:11:07,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 13:11:07,752 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:11:07,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:11:07,753 INFO L85 PathProgramCache]: Analyzing trace with hash 322101155, now seen corresponding path program 1 times [2022-12-13 13:11:07,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 13:11:07,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1369629685] [2022-12-13 13:11:07,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:11:07,757 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 13:11:07,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 13:11:07,760 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 13:11:07,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-12-13 13:11:08,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:11:08,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 30 conjunts are in the unsatisfiable core [2022-12-13 13:11:08,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:11:08,433 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-13 13:11:08,433 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:11:08,620 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 13:11:08,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1369629685] [2022-12-13 13:11:08,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1369629685] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:11:08,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1548541594] [2022-12-13 13:11:08,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:11:08,621 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-13 13:11:08,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/cvc4 [2022-12-13 13:11:08,622 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-13 13:11:08,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2022-12-13 13:11:09,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:11:09,022 INFO L263 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 32 conjunts are in the unsatisfiable core [2022-12-13 13:11:09,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:11:09,242 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-13 13:11:09,243 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:11:09,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1548541594] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:11:09,339 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 13:11:09,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2022-12-13 13:11:09,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709534995] [2022-12-13 13:11:09,339 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 13:11:09,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 13:11:09,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 13:11:09,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 13:11:09,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-13 13:11:09,340 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 13:11:09,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:11:09,634 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2022-12-13 13:11:09,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 13:11:09,635 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 32 [2022-12-13 13:11:09,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:11:09,635 INFO L225 Difference]: With dead ends: 36 [2022-12-13 13:11:09,635 INFO L226 Difference]: Without dead ends: 34 [2022-12-13 13:11:09,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 64 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-12-13 13:11:09,636 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 10 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 13:11:09,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 49 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 13:11:09,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-12-13 13:11:09,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 28. [2022-12-13 13:11:09,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 20 states have (on average 1.05) internal successors, (21), 20 states have internal predecessors, (21), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-12-13 13:11:09,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2022-12-13 13:11:09,642 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 32 [2022-12-13 13:11:09,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:11:09,643 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions. [2022-12-13 13:11:09,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 13:11:09,643 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2022-12-13 13:11:09,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-12-13 13:11:09,644 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:11:09,644 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1] [2022-12-13 13:11:09,654 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-12-13 13:11:09,857 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2022-12-13 13:11:10,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt [2022-12-13 13:11:10,047 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:11:10,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:11:10,048 INFO L85 PathProgramCache]: Analyzing trace with hash -220860929, now seen corresponding path program 2 times [2022-12-13 13:11:10,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 13:11:10,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1384685634] [2022-12-13 13:11:10,052 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 13:11:10,052 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 13:11:10,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 13:11:10,053 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 13:11:10,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-12-13 13:11:10,325 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 13:11:10,326 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:11:10,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 814 conjuncts, 37 conjunts are in the unsatisfiable core [2022-12-13 13:11:10,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:11:10,683 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-12-13 13:11:10,684 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:11:10,850 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 13:11:10,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1384685634] [2022-12-13 13:11:10,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1384685634] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:11:10,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2138922838] [2022-12-13 13:11:10,851 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 13:11:10,851 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-13 13:11:10,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/cvc4 [2022-12-13 13:11:10,852 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-13 13:11:10,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2022-12-13 13:11:11,411 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 13:11:11,411 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:11:11,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 814 conjuncts, 40 conjunts are in the unsatisfiable core [2022-12-13 13:11:11,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:11:11,677 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-12-13 13:11:11,677 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:11:11,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2138922838] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:11:11,765 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 13:11:11,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2022-12-13 13:11:11,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631886745] [2022-12-13 13:11:11,765 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 13:11:11,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 13:11:11,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 13:11:11,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 13:11:11,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-12-13 13:11:11,767 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-12-13 13:11:12,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:11:12,202 INFO L93 Difference]: Finished difference Result 43 states and 52 transitions. [2022-12-13 13:11:12,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 13:11:12,202 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 47 [2022-12-13 13:11:12,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:11:12,204 INFO L225 Difference]: With dead ends: 43 [2022-12-13 13:11:12,204 INFO L226 Difference]: Without dead ends: 41 [2022-12-13 13:11:12,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 93 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-12-13 13:11:12,205 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 14 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 13:11:12,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 88 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 13:11:12,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-12-13 13:11:12,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 35. [2022-12-13 13:11:12,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 25 states have (on average 1.04) internal successors, (26), 25 states have internal predecessors, (26), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-13 13:11:12,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2022-12-13 13:11:12,212 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 47 [2022-12-13 13:11:12,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:11:12,213 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2022-12-13 13:11:12,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-12-13 13:11:12,213 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2022-12-13 13:11:12,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-12-13 13:11:12,214 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:11:12,214 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1] [2022-12-13 13:11:12,219 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2022-12-13 13:11:12,431 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-12-13 13:11:12,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 13:11:12,616 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:11:12,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:11:12,617 INFO L85 PathProgramCache]: Analyzing trace with hash -2090804189, now seen corresponding path program 3 times [2022-12-13 13:11:12,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 13:11:12,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1859527782] [2022-12-13 13:11:12,618 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 13:11:12,619 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 13:11:12,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 13:11:12,620 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 13:11:12,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-12-13 13:11:13,043 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-12-13 13:11:13,043 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:11:13,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 1077 conjuncts, 45 conjunts are in the unsatisfiable core [2022-12-13 13:11:13,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:11:13,459 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-12-13 13:11:13,459 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:11:13,609 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 13:11:13,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1859527782] [2022-12-13 13:11:13,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1859527782] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:11:13,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1363471614] [2022-12-13 13:11:13,610 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 13:11:13,610 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-13 13:11:13,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/cvc4 [2022-12-13 13:11:13,611 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-13 13:11:13,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2022-12-13 13:11:14,361 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-12-13 13:11:14,361 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:11:14,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 1077 conjuncts, 51 conjunts are in the unsatisfiable core [2022-12-13 13:11:14,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:11:14,742 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-12-13 13:11:14,742 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:11:14,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1363471614] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:11:14,833 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 13:11:14,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2022-12-13 13:11:14,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836579095] [2022-12-13 13:11:14,833 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 13:11:14,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 13:11:14,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 13:11:14,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 13:11:14,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-12-13 13:11:14,834 INFO L87 Difference]: Start difference. First operand 35 states and 42 transitions. Second operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2022-12-13 13:11:15,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:11:15,367 INFO L93 Difference]: Finished difference Result 50 states and 61 transitions. [2022-12-13 13:11:15,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 13:11:15,367 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 62 [2022-12-13 13:11:15,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:11:15,369 INFO L225 Difference]: With dead ends: 50 [2022-12-13 13:11:15,369 INFO L226 Difference]: Without dead ends: 48 [2022-12-13 13:11:15,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 122 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-12-13 13:11:15,370 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 18 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 13:11:15,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 118 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 13:11:15,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-12-13 13:11:15,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 42. [2022-12-13 13:11:15,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 30 states have (on average 1.0333333333333334) internal successors, (31), 30 states have internal predecessors, (31), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-12-13 13:11:15,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 51 transitions. [2022-12-13 13:11:15,377 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 51 transitions. Word has length 62 [2022-12-13 13:11:15,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:11:15,377 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 51 transitions. [2022-12-13 13:11:15,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2022-12-13 13:11:15,377 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 51 transitions. [2022-12-13 13:11:15,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-12-13 13:11:15,378 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:11:15,378 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1] [2022-12-13 13:11:15,385 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2022-12-13 13:11:15,621 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2022-12-13 13:11:15,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 13:11:15,781 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:11:15,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:11:15,783 INFO L85 PathProgramCache]: Analyzing trace with hash -497065601, now seen corresponding path program 4 times [2022-12-13 13:11:15,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 13:11:15,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1152878452] [2022-12-13 13:11:15,786 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 13:11:15,787 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 13:11:15,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 13:11:15,788 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 13:11:15,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-12-13 13:11:16,186 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 13:11:16,186 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:11:16,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 1386 conjuncts, 52 conjunts are in the unsatisfiable core [2022-12-13 13:11:16,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:11:16,697 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-12-13 13:11:16,697 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:11:16,834 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 13:11:16,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1152878452] [2022-12-13 13:11:16,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1152878452] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:11:16,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [222233299] [2022-12-13 13:11:16,835 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 13:11:16,835 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-13 13:11:16,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/cvc4 [2022-12-13 13:11:16,836 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-13 13:11:16,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2022-12-13 13:11:17,697 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 13:11:17,697 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:11:17,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 1386 conjuncts, 54 conjunts are in the unsatisfiable core [2022-12-13 13:11:17,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:11:18,192 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-12-13 13:11:18,192 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:11:18,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [222233299] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:11:18,293 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 13:11:18,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2022-12-13 13:11:18,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257214234] [2022-12-13 13:11:18,293 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 13:11:18,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 13:11:18,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 13:11:18,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 13:11:18,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-12-13 13:11:18,294 INFO L87 Difference]: Start difference. First operand 42 states and 51 transitions. Second operand has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2022-12-13 13:11:19,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:11:19,062 INFO L93 Difference]: Finished difference Result 57 states and 70 transitions. [2022-12-13 13:11:19,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 13:11:19,063 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 77 [2022-12-13 13:11:19,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:11:19,064 INFO L225 Difference]: With dead ends: 57 [2022-12-13 13:11:19,064 INFO L226 Difference]: Without dead ends: 55 [2022-12-13 13:11:19,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 151 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2022-12-13 13:11:19,064 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 22 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-13 13:11:19,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 152 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-13 13:11:19,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-12-13 13:11:19,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 49. [2022-12-13 13:11:19,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 35 states have (on average 1.0285714285714285) internal successors, (36), 35 states have internal predecessors, (36), 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) [2022-12-13 13:11:19,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 60 transitions. [2022-12-13 13:11:19,073 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 60 transitions. Word has length 77 [2022-12-13 13:11:19,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:11:19,073 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 60 transitions. [2022-12-13 13:11:19,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2022-12-13 13:11:19,074 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 60 transitions. [2022-12-13 13:11:19,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-12-13 13:11:19,075 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:11:19,075 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 5, 5, 1, 1, 1, 1] [2022-12-13 13:11:19,089 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-12-13 13:11:19,288 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2022-12-13 13:11:19,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt [2022-12-13 13:11:19,477 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:11:19,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:11:19,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1068369757, now seen corresponding path program 5 times [2022-12-13 13:11:19,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 13:11:19,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1458440591] [2022-12-13 13:11:19,482 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-13 13:11:19,483 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 13:11:19,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 13:11:19,484 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 13:11:19,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-12-13 13:11:20,196 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2022-12-13 13:11:20,197 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:11:20,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 1672 conjuncts, 59 conjunts are in the unsatisfiable core [2022-12-13 13:11:20,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:11:20,962 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2022-12-13 13:11:20,962 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:11:21,121 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 13:11:21,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1458440591] [2022-12-13 13:11:21,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1458440591] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:11:21,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1938853500] [2022-12-13 13:11:21,122 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-13 13:11:21,122 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-13 13:11:21,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/cvc4 [2022-12-13 13:11:21,123 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-13 13:11:21,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2022-12-13 13:11:24,123 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2022-12-13 13:11:24,123 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:11:24,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 1672 conjuncts, 64 conjunts are in the unsatisfiable core [2022-12-13 13:11:24,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:11:24,695 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2022-12-13 13:11:24,695 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:11:24,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1938853500] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:11:24,786 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 13:11:24,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2022-12-13 13:11:24,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693858695] [2022-12-13 13:11:24,787 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 13:11:24,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 13:11:24,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 13:11:24,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 13:11:24,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-12-13 13:11:24,788 INFO L87 Difference]: Start difference. First operand 49 states and 60 transitions. Second operand has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 6 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2022-12-13 13:11:25,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:11:25,758 INFO L93 Difference]: Finished difference Result 64 states and 79 transitions. [2022-12-13 13:11:25,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 13:11:25,758 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 6 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 92 [2022-12-13 13:11:25,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:11:25,759 INFO L225 Difference]: With dead ends: 64 [2022-12-13 13:11:25,759 INFO L226 Difference]: Without dead ends: 62 [2022-12-13 13:11:25,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 180 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2022-12-13 13:11:25,761 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 26 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 13:11:25,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 190 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 13:11:25,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-12-13 13:11:25,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 56. [2022-12-13 13:11:25,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 40 states have (on average 1.025) internal successors, (41), 40 states have internal predecessors, (41), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-12-13 13:11:25,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 69 transitions. [2022-12-13 13:11:25,775 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 69 transitions. Word has length 92 [2022-12-13 13:11:25,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:11:25,776 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 69 transitions. [2022-12-13 13:11:25,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 6 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2022-12-13 13:11:25,776 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 69 transitions. [2022-12-13 13:11:25,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-12-13 13:11:25,778 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:11:25,778 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 6, 6, 1, 1, 1, 1] [2022-12-13 13:11:25,787 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2022-12-13 13:11:26,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-12-13 13:11:26,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 13:11:26,180 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:11:26,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:11:26,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1031686913, now seen corresponding path program 6 times [2022-12-13 13:11:26,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 13:11:26,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1736444075] [2022-12-13 13:11:26,184 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-12-13 13:11:26,184 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 13:11:26,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 13:11:26,185 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 13:11:26,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-12-13 13:11:27,290 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2022-12-13 13:11:27,290 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:11:27,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 1935 conjuncts, 394 conjunts are in the unsatisfiable core [2022-12-13 13:11:27,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:12:15,486 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 101 [2022-12-13 13:12:15,486 WARN L230 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2022-12-13 13:12:15,487 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 13:12:15,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1736444075] [2022-12-13 13:12:15,488 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-12-13 13:12:15,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-12-13 13:12:15,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 13:12:15,690 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:258) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.UndoableWrapperScript.push(UndoableWrapperScript.java:54) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:48) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.getRedundancy(SimplifyDDA.java:620) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getRedundancy(SimplifyDDAWithTimeout.java:120) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:370) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:649) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:180) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:198) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:361) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:306) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:582) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:199) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) ... 53 more [2022-12-13 13:12:15,701 INFO L158 Benchmark]: Toolchain (without parser) took 70362.98ms. Allocated memory was 62.9MB in the beginning and 134.2MB in the end (delta: 71.3MB). Free memory was 33.5MB in the beginning and 72.9MB in the end (delta: -39.3MB). Peak memory consumption was 83.2MB. Max. memory is 16.1GB. [2022-12-13 13:12:15,702 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 50.3MB. Free memory was 28.7MB in the beginning and 28.7MB in the end (delta: 52.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:12:15,704 INFO L158 Benchmark]: CACSL2BoogieTranslator took 291.35ms. Allocated memory is still 62.9MB. Free memory was 33.3MB in the beginning and 27.1MB in the end (delta: 6.2MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2022-12-13 13:12:15,705 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.24ms. Allocated memory is still 62.9MB. Free memory was 27.1MB in the beginning and 41.9MB in the end (delta: -14.8MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. [2022-12-13 13:12:15,706 INFO L158 Benchmark]: Boogie Preprocessor took 27.34ms. Allocated memory is still 62.9MB. Free memory was 41.9MB in the beginning and 39.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:12:15,708 INFO L158 Benchmark]: RCFGBuilder took 572.94ms. Allocated memory is still 62.9MB. Free memory was 39.2MB in the beginning and 32.1MB in the end (delta: 7.2MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. [2022-12-13 13:12:15,709 INFO L158 Benchmark]: TraceAbstraction took 69424.20ms. Allocated memory was 62.9MB in the beginning and 134.2MB in the end (delta: 71.3MB). Free memory was 31.3MB in the beginning and 72.9MB in the end (delta: -41.5MB). Peak memory consumption was 79.3MB. Max. memory is 16.1GB. [2022-12-13 13:12:15,716 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 50.3MB. Free memory was 28.7MB in the beginning and 28.7MB in the end (delta: 52.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 291.35ms. Allocated memory is still 62.9MB. Free memory was 33.3MB in the beginning and 27.1MB in the end (delta: 6.2MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.24ms. Allocated memory is still 62.9MB. Free memory was 27.1MB in the beginning and 41.9MB in the end (delta: -14.8MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.34ms. Allocated memory is still 62.9MB. Free memory was 41.9MB in the beginning and 39.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 572.94ms. Allocated memory is still 62.9MB. Free memory was 39.2MB in the beginning and 32.1MB in the end (delta: 7.2MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. * TraceAbstraction took 69424.20ms. Allocated memory was 62.9MB in the beginning and 134.2MB in the end (delta: 71.3MB). Free memory was 31.3MB in the beginning and 72.9MB in the end (delta: -41.5MB). Peak memory consumption was 79.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc08180-f3e7-4262-9c1f-ee62fc9e6798/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory")