./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/gcd_2+newton_2_6.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_2+newton_2_6.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro --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 32bit --witnessprinter.graph.data.programhash 16f616cbb154d125e085ac05764879da22cdfe3693ed1f1a6c28186441fe892d --- 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-8393723 [2022-11-18 20:02:44,317 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:02:44,321 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:02:44,363 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:02:44,364 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:02:44,368 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:02:44,371 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:02:44,374 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:02:44,377 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:02:44,379 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:02:44,380 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:02:44,382 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:02:44,383 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:02:44,389 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:02:44,391 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:02:44,393 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:02:44,394 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:02:44,396 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:02:44,398 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:02:44,405 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:02:44,407 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:02:44,408 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:02:44,411 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:02:44,412 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:02:44,418 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:02:44,423 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:02:44,423 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:02:44,424 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:02:44,425 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:02:44,426 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:02:44,427 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:02:44,428 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:02:44,430 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:02:44,431 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:02:44,433 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:02:44,433 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:02:44,434 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:02:44,434 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:02:44,435 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:02:44,436 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:02:44,436 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:02:44,437 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 20:02:44,477 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:02:44,478 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:02:44,479 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:02:44,479 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:02:44,480 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:02:44,480 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:02:44,481 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:02:44,481 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:02:44,482 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:02:44,482 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:02:44,483 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:02:44,483 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:02:44,484 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:02:44,484 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:02:44,484 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:02:44,485 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:02:44,485 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:02:44,485 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:02:44,486 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:02:44,486 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:02:44,486 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:02:44,486 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:02:44,487 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:02:44,487 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:02:44,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:02:44,488 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:02:44,489 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:02:44,490 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:02:44,490 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:02:44,490 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:02:44,491 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:02:44,491 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:02:44,492 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:02:44,492 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16f616cbb154d125e085ac05764879da22cdfe3693ed1f1a6c28186441fe892d [2022-11-18 20:02:44,840 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:02:44,868 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:02:44,871 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:02:44,873 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:02:44,873 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:02:44,875 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/combinations/gcd_2+newton_2_6.i [2022-11-18 20:02:44,938 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/data/ac4e2e5b0/11d4656e5e5a468ba09ec847b44b5eb1/FLAGfa11001dd [2022-11-18 20:02:45,464 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:02:45,469 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/sv-benchmarks/c/combinations/gcd_2+newton_2_6.i [2022-11-18 20:02:45,479 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/data/ac4e2e5b0/11d4656e5e5a468ba09ec847b44b5eb1/FLAGfa11001dd [2022-11-18 20:02:45,807 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/data/ac4e2e5b0/11d4656e5e5a468ba09ec847b44b5eb1 [2022-11-18 20:02:45,811 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:02:45,814 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:02:45,818 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:02:45,818 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:02:45,822 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:02:45,823 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:02:45" (1/1) ... [2022-11-18 20:02:45,825 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@552b6b7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:45, skipping insertion in model container [2022-11-18 20:02:45,825 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:02:45" (1/1) ... [2022-11-18 20:02:45,832 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:02:45,854 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:02:46,088 WARN L234 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_ffde6e8a-4178-449a-8d66-7b3024fe33b3/sv-benchmarks/c/combinations/gcd_2+newton_2_6.i[1226,1239] [2022-11-18 20:02:46,112 WARN L234 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_ffde6e8a-4178-449a-8d66-7b3024fe33b3/sv-benchmarks/c/combinations/gcd_2+newton_2_6.i[2841,2854] [2022-11-18 20:02:46,114 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:02:46,123 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:02:46,151 WARN L234 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_ffde6e8a-4178-449a-8d66-7b3024fe33b3/sv-benchmarks/c/combinations/gcd_2+newton_2_6.i[1226,1239] [2022-11-18 20:02:46,172 WARN L234 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_ffde6e8a-4178-449a-8d66-7b3024fe33b3/sv-benchmarks/c/combinations/gcd_2+newton_2_6.i[2841,2854] [2022-11-18 20:02:46,173 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:02:46,202 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:02:46,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:46 WrapperNode [2022-11-18 20:02:46,203 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:02:46,204 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:02:46,204 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:02:46,204 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:02:46,216 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:46" (1/1) ... [2022-11-18 20:02:46,228 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:46" (1/1) ... [2022-11-18 20:02:46,259 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 85 [2022-11-18 20:02:46,259 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:02:46,260 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:02:46,260 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:02:46,260 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:02:46,269 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:46" (1/1) ... [2022-11-18 20:02:46,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:46" (1/1) ... [2022-11-18 20:02:46,271 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:46" (1/1) ... [2022-11-18 20:02:46,271 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:46" (1/1) ... [2022-11-18 20:02:46,276 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:46" (1/1) ... [2022-11-18 20:02:46,279 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:46" (1/1) ... [2022-11-18 20:02:46,281 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:46" (1/1) ... [2022-11-18 20:02:46,282 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:46" (1/1) ... [2022-11-18 20:02:46,284 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:02:46,285 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:02:46,285 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:02:46,286 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:02:46,287 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:46" (1/1) ... [2022-11-18 20:02:46,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:02:46,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:02:46,318 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:02:46,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:02:46,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:02:46,360 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2022-11-18 20:02:46,360 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2022-11-18 20:02:46,360 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-11-18 20:02:46,360 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-11-18 20:02:46,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:02:46,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:02:46,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:02:46,444 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:02:46,448 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:02:46,686 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:02:46,691 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:02:46,692 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 20:02:46,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:02:46 BoogieIcfgContainer [2022-11-18 20:02:46,694 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:02:46,696 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:02:46,696 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:02:46,707 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:02:46,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:02:45" (1/3) ... [2022-11-18 20:02:46,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49b4d60e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:02:46, skipping insertion in model container [2022-11-18 20:02:46,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:46" (2/3) ... [2022-11-18 20:02:46,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49b4d60e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:02:46, skipping insertion in model container [2022-11-18 20:02:46,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:02:46" (3/3) ... [2022-11-18 20:02:46,710 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_2+newton_2_6.i [2022-11-18 20:02:46,743 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:02:46,743 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-18 20:02:46,839 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:02:46,854 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@41605c4f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:02:46,854 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-18 20:02:46,861 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 28 states have (on average 1.3928571428571428) internal successors, (39), 30 states have internal predecessors, (39), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-18 20:02:46,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-18 20:02:46,870 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:02:46,870 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:02:46,872 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:02:46,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:02:46,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1709385323, now seen corresponding path program 1 times [2022-11-18 20:02:46,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:02:46,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143116686] [2022-11-18 20:02:46,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:02:46,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:02:47,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:47,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:02:47,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:02:47,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143116686] [2022-11-18 20:02:47,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143116686] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:02:47,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:02:47,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:02:47,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512968762] [2022-11-18 20:02:47,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:02:47,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:02:47,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:02:47,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:02:47,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:02:47,305 INFO L87 Difference]: Start difference. First operand has 37 states, 28 states have (on average 1.3928571428571428) internal successors, (39), 30 states have internal predecessors, (39), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:47,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:02:47,386 INFO L93 Difference]: Finished difference Result 90 states and 111 transitions. [2022-11-18 20:02:47,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:02:47,390 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-18 20:02:47,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:02:47,398 INFO L225 Difference]: With dead ends: 90 [2022-11-18 20:02:47,398 INFO L226 Difference]: Without dead ends: 36 [2022-11-18 20:02:47,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:02:47,407 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 30 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:02:47,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 107 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:02:47,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-11-18 20:02:47,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 29. [2022-11-18 20:02:47,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 22 states have internal predecessors, (24), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-18 20:02:47,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2022-11-18 20:02:47,464 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 11 [2022-11-18 20:02:47,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:02:47,465 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2022-11-18 20:02:47,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:47,466 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2022-11-18 20:02:47,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-18 20:02:47,468 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:02:47,469 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:02:47,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:02:47,469 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:02:47,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:02:47,471 INFO L85 PathProgramCache]: Analyzing trace with hash 65622039, now seen corresponding path program 1 times [2022-11-18 20:02:47,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:02:47,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614459388] [2022-11-18 20:02:47,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:02:47,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:02:47,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:47,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:02:47,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:02:47,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614459388] [2022-11-18 20:02:47,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614459388] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:02:47,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:02:47,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:02:47,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794565533] [2022-11-18 20:02:47,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:02:47,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:02:47,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:02:47,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:02:47,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:02:47,558 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:47,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:02:47,585 INFO L93 Difference]: Finished difference Result 36 states and 39 transitions. [2022-11-18 20:02:47,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:02:47,586 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-18 20:02:47,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:02:47,586 INFO L225 Difference]: With dead ends: 36 [2022-11-18 20:02:47,587 INFO L226 Difference]: Without dead ends: 30 [2022-11-18 20:02:47,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:02:47,588 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 4 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:02:47,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 82 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:02:47,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-18 20:02:47,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-11-18 20:02:47,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 23 states have internal predecessors, (25), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-18 20:02:47,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2022-11-18 20:02:47,595 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 11 [2022-11-18 20:02:47,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:02:47,595 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2022-11-18 20:02:47,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:47,596 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2022-11-18 20:02:47,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-18 20:02:47,596 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:02:47,596 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:02:47,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:02:47,597 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:02:47,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:02:47,598 INFO L85 PathProgramCache]: Analyzing trace with hash -659390950, now seen corresponding path program 1 times [2022-11-18 20:02:47,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:02:47,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396765474] [2022-11-18 20:02:47,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:02:47,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:02:47,612 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 20:02:47,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [982482809] [2022-11-18 20:02:47,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:02:47,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:02:47,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:02:47,616 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:02:47,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:02:47,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:47,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-18 20:02:47,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:02:47,811 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:02:47,811 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:02:47,867 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:02:47,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:02:47,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396765474] [2022-11-18 20:02:47,868 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 20:02:47,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [982482809] [2022-11-18 20:02:47,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [982482809] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:02:47,869 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 20:02:47,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2022-11-18 20:02:47,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24077594] [2022-11-18 20:02:47,869 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 20:02:47,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 20:02:47,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:02:47,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 20:02:47,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:02:47,871 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:47,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:02:47,984 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2022-11-18 20:02:47,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:02:47,985 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-18 20:02:47,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:02:47,986 INFO L225 Difference]: With dead ends: 37 [2022-11-18 20:02:47,988 INFO L226 Difference]: Without dead ends: 31 [2022-11-18 20:02:47,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-11-18 20:02:47,991 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 7 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:02:47,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 179 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:02:47,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-11-18 20:02:48,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-11-18 20:02:48,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 24 states have internal predecessors, (26), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-18 20:02:48,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2022-11-18 20:02:48,006 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 12 [2022-11-18 20:02:48,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:02:48,007 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2022-11-18 20:02:48,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:48,009 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2022-11-18 20:02:48,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-18 20:02:48,011 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:02:48,011 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:02:48,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 20:02:48,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:02:48,216 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:02:48,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:02:48,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1659957129, now seen corresponding path program 2 times [2022-11-18 20:02:48,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:02:48,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296650215] [2022-11-18 20:02:48,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:02:48,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:02:48,227 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 20:02:48,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [644822036] [2022-11-18 20:02:48,228 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:02:48,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:02:48,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:02:48,240 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:02:48,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 20:02:48,312 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:02:48,313 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:02:48,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 20:02:48,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:03:06,720 WARN L233 SmtUtils]: Spent 17.33s on a formula simplification. DAG size of input: 72 DAG size of output: 40 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 20:03:08,448 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:03:08,448 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:05:38,231 WARN L233 SmtUtils]: Spent 2.28m on a formula simplification. DAG size of input: 129 DAG size of output: 35 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 20:05:39,312 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:05:39,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:05:39,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296650215] [2022-11-18 20:05:39,313 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 20:05:39,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [644822036] [2022-11-18 20:05:39,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [644822036] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:05:39,314 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 20:05:39,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2022-11-18 20:05:39,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104344878] [2022-11-18 20:05:39,315 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 20:05:39,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-18 20:05:39,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:05:39,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-18 20:05:39,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=195, Unknown=1, NotChecked=0, Total=240 [2022-11-18 20:05:39,317 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand has 16 states, 16 states have (on average 1.4375) internal successors, (23), 16 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:05:45,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:05:45,976 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2022-11-18 20:05:45,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:05:45,977 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 1.4375) internal successors, (23), 16 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-18 20:05:45,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:05:45,978 INFO L225 Difference]: With dead ends: 38 [2022-11-18 20:05:45,979 INFO L226 Difference]: Without dead ends: 32 [2022-11-18 20:05:45,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 165.2s TimeCoverageRelationStatistics Valid=51, Invalid=220, Unknown=1, NotChecked=0, Total=272 [2022-11-18 20:05:45,981 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 4 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 23 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:05:45,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 258 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 23 Unchecked, 0.0s Time] [2022-11-18 20:05:45,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-11-18 20:05:45,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2022-11-18 20:05:45,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 24 states have (on average 1.125) internal successors, (27), 25 states have internal predecessors, (27), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-18 20:05:45,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2022-11-18 20:05:45,989 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 13 [2022-11-18 20:05:45,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:05:45,990 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2022-11-18 20:05:45,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 1.4375) internal successors, (23), 16 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:05:45,990 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2022-11-18 20:05:45,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-18 20:05:45,991 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:05:45,992 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:05:46,008 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:05:46,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:05:46,198 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:05:46,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:05:46,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1682229690, now seen corresponding path program 3 times [2022-11-18 20:05:46,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:05:46,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435605157] [2022-11-18 20:05:46,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:05:46,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:05:46,213 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 20:05:46,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1301288955] [2022-11-18 20:05:46,221 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 20:05:46,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:05:46,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:05:46,229 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:05:46,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 20:05:46,404 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-18 20:05:46,404 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:05:46,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 37 conjunts are in the unsatisfiable core [2022-11-18 20:05:46,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:06:10,414 WARN L233 SmtUtils]: Spent 15.82s on a formula simplification. DAG size of input: 55 DAG size of output: 49 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 20:06:49,393 WARN L233 SmtUtils]: Spent 24.47s on a formula simplification that was a NOOP. DAG size: 95 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 20:07:31,007 WARN L233 SmtUtils]: Spent 31.52s on a formula simplification that was a NOOP. DAG size: 82 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 20:08:15,897 WARN L233 SmtUtils]: Spent 37.94s on a formula simplification. DAG size of input: 82 DAG size of output: 69 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 20:08:36,332 WARN L233 SmtUtils]: Spent 14.05s on a formula simplification that was a NOOP. DAG size: 70 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 20:08:40,278 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:08:40,279 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:09:53,838 WARN L233 SmtUtils]: Spent 46.83s on a formula simplification. DAG size of input: 88 DAG size of output: 61 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 20:11:21,274 WARN L859 $PredicateComparison]: unable to prove that (or (= |c_ULTIMATE.start_gcd_test_~b#1| 0) (let ((.cse7 (< |c_ULTIMATE.start_gcd_test_~b#1| 0))) (let ((.cse26 (not .cse7)) (.cse2 (* |c_ULTIMATE.start_gcd_test_~b#1| 255))) (and (or (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse1 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse0 (mod .cse1 256))) (let ((.cse3 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| .cse0) 256))) (or (= .cse0 0) (<= (mod (+ .cse1 .cse2) 256) 127) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse3) 256) 0)) (not (<= .cse0 127)) (< |ULTIMATE.start_gcd_test_~a#1| 0) (<= (mod (+ .cse1 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127) (< |v_ULTIMATE.start_gcd_test_~a#1_20| .cse0) (<= .cse3 |c_ULTIMATE.start_main1_~y~0#1|)))))) (< |v_ULTIMATE.start_gcd_test_~a#1_21| |c_ULTIMATE.start_gcd_test_~b#1|))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse6 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse5 (mod (+ .cse6 .cse2) 256))) (let ((.cse4 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| (+ (- 256) .cse5)) 256))) (or (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (<= .cse4 |c_ULTIMATE.start_main1_~y~0#1|) (<= .cse5 127) (not (<= (mod .cse6 256) 127)) (<= (mod (+ .cse6 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse4) 256) 0)) (< (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_20|) .cse5) (= .cse6 0)))))) (< |v_ULTIMATE.start_gcd_test_~a#1_21| |c_ULTIMATE.start_gcd_test_~b#1|)))) .cse7) (or .cse7 (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse10 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse9 (mod .cse10 256))) (let ((.cse8 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| (+ (- 256) .cse9)) 256))) (or (<= .cse8 |c_ULTIMATE.start_main1_~y~0#1|) (< (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_20|) .cse9) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse8) 256) 0)) (<= (mod (+ .cse10 .cse2) 256) 127) (<= .cse9 127) (< |ULTIMATE.start_gcd_test_~a#1| 0) (<= (mod (+ .cse10 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)))))) (< |v_ULTIMATE.start_gcd_test_~a#1_21| |c_ULTIMATE.start_gcd_test_~b#1|))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_21| |c_ULTIMATE.start_gcd_test_~b#1|) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse13 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse12 (mod (+ .cse13 .cse2) 256))) (let ((.cse11 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| (+ (- 256) .cse12)) 256))) (or (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (<= .cse11 |c_ULTIMATE.start_main1_~y~0#1|) (<= .cse12 127) (<= (mod .cse13 256) 127) (<= (mod (+ .cse13 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse11) 256) 0)) (< (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_20|) .cse12)))))))))) (or (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse14 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse16 (mod (+ .cse14 .cse2) 256))) (let ((.cse15 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| (+ (- 256) .cse16)) 256))) (or (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (not (<= (mod (+ .cse14 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)) (<= .cse15 |c_ULTIMATE.start_main1_~y~0#1|) (<= .cse16 127) (not (<= (mod .cse14 256) 127)) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse15) 256) 0)) (< (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_20|) .cse16) (= .cse14 0)))))) (< |v_ULTIMATE.start_gcd_test_~a#1_21| |c_ULTIMATE.start_gcd_test_~b#1|))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse18 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse17 (mod .cse18 256))) (let ((.cse19 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| .cse17) 256))) (or (= .cse17 0) (not (<= (mod (+ .cse18 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)) (<= (mod (+ .cse18 .cse2) 256) 127) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse19) 256) 0)) (not (<= .cse17 127)) (< |ULTIMATE.start_gcd_test_~a#1| 0) (< |v_ULTIMATE.start_gcd_test_~a#1_20| .cse17) (<= .cse19 |c_ULTIMATE.start_main1_~y~0#1|)))))) (< |v_ULTIMATE.start_gcd_test_~a#1_21| |c_ULTIMATE.start_gcd_test_~b#1|)))) .cse7) (or (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse20 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse21 (mod .cse20 256))) (let ((.cse22 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| .cse21) 256))) (or (not (<= (mod (+ .cse20 .cse2) 256) 127)) (= .cse21 0) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse22) 256) 0)) (not (<= .cse21 127)) (< |ULTIMATE.start_gcd_test_~a#1| 0) (<= (mod (+ .cse20 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127) (< |v_ULTIMATE.start_gcd_test_~a#1_20| .cse21) (<= .cse22 |c_ULTIMATE.start_main1_~y~0#1|)))))) (< |v_ULTIMATE.start_gcd_test_~a#1_21| |c_ULTIMATE.start_gcd_test_~b#1|))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse25 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse23 (mod (+ .cse25 .cse2) 256))) (let ((.cse24 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| .cse23) 256))) (or (not (<= .cse23 127)) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse24) 256) 0)) (< |v_ULTIMATE.start_gcd_test_~a#1_20| .cse23) (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (= .cse23 0) (<= .cse24 |c_ULTIMATE.start_main1_~y~0#1|) (not (<= (mod .cse25 256) 127)) (<= (mod (+ .cse25 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127) (= .cse25 0)))))) (< |v_ULTIMATE.start_gcd_test_~a#1_21| |c_ULTIMATE.start_gcd_test_~b#1|)))) .cse7) (or .cse26 (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse29 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse28 (mod .cse29 256))) (let ((.cse27 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| (+ (- 256) .cse28)) 256))) (or (<= .cse27 |c_ULTIMATE.start_main1_~y~0#1|) (< (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_20|) .cse28) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse27) 256) 0)) (not (<= (mod (+ .cse29 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)) (<= (mod (+ .cse29 .cse2) 256) 127) (<= .cse28 127) (< |ULTIMATE.start_gcd_test_~a#1| 0)))))) (< |v_ULTIMATE.start_gcd_test_~a#1_21| 0))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_21| 0) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse31 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse30 (mod (+ .cse31 |c_ULTIMATE.start_gcd_test_~b#1|) 256))) (let ((.cse32 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| .cse30) 256))) (or (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (not (<= .cse30 127)) (<= (mod (+ .cse31 .cse2) 256) 127) (<= (mod .cse31 256) 127) (= 0 .cse30) (< |v_ULTIMATE.start_gcd_test_~a#1_20| .cse30) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse32) 256) 0)) (<= .cse32 |c_ULTIMATE.start_main1_~y~0#1|)))))))))) (or (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse35 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse33 (mod (+ .cse35 .cse2) 256))) (let ((.cse34 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| .cse33) 256))) (or (not (<= .cse33 127)) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse34) 256) 0)) (< |v_ULTIMATE.start_gcd_test_~a#1_20| .cse33) (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (= .cse33 0) (<= .cse34 |c_ULTIMATE.start_main1_~y~0#1|) (<= (mod .cse35 256) 127) (<= (mod (+ .cse35 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)))))) (< |v_ULTIMATE.start_gcd_test_~a#1_21| |c_ULTIMATE.start_gcd_test_~b#1|))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse37 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse38 (mod .cse37 256))) (let ((.cse36 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| (+ (- 256) .cse38)) 256))) (or (<= .cse36 |c_ULTIMATE.start_main1_~y~0#1|) (not (<= (mod (+ .cse37 .cse2) 256) 127)) (< (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_20|) .cse38) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse36) 256) 0)) (<= .cse38 127) (< |ULTIMATE.start_gcd_test_~a#1| 0) (<= (mod (+ .cse37 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)))))) (< |v_ULTIMATE.start_gcd_test_~a#1_21| |c_ULTIMATE.start_gcd_test_~b#1|)))) .cse7) (or .cse26 (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse39 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse40 (mod (+ .cse39 |c_ULTIMATE.start_gcd_test_~b#1|) 256))) (let ((.cse41 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| .cse40) 256))) (or (not (<= (mod (+ .cse39 .cse2) 256) 127)) (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (not (<= .cse40 127)) (= 0 .cse40) (not (<= (mod .cse39 256) 127)) (< |v_ULTIMATE.start_gcd_test_~a#1_20| .cse40) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse41) 256) 0)) (<= .cse41 |c_ULTIMATE.start_main1_~y~0#1|)))))) (< |v_ULTIMATE.start_gcd_test_~a#1_21| 0))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse42 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse43 (mod .cse42 256))) (let ((.cse44 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| .cse43) 256))) (or (not (<= (mod (+ .cse42 .cse2) 256) 127)) (= .cse43 0) (not (<= (mod (+ .cse42 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse44) 256) 0)) (not (<= .cse43 127)) (< |ULTIMATE.start_gcd_test_~a#1| 0) (< |v_ULTIMATE.start_gcd_test_~a#1_20| .cse43) (<= .cse44 |c_ULTIMATE.start_main1_~y~0#1|)))))) (< |v_ULTIMATE.start_gcd_test_~a#1_21| 0))))) (or .cse26 (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_21| 0) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse45 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse46 (mod .cse45 256))) (let ((.cse47 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| .cse46) 256))) (or (not (<= (mod (+ .cse45 .cse2) 256) 127)) (= .cse46 0) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse47) 256) 0)) (not (<= .cse46 127)) (< |ULTIMATE.start_gcd_test_~a#1| 0) (<= (mod (+ .cse45 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127) (< |v_ULTIMATE.start_gcd_test_~a#1_20| .cse46) (<= .cse47 |c_ULTIMATE.start_main1_~y~0#1|)))))))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_21| 0) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse48 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse49 (mod (+ .cse48 |c_ULTIMATE.start_gcd_test_~b#1|) 256))) (let ((.cse50 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| (+ (- 256) .cse49)) 256))) (or (not (<= (mod (+ .cse48 .cse2) 256) 127)) (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (not (<= (mod .cse48 256) 127)) (<= .cse49 127) (< (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_20|) .cse49) (<= .cse50 |c_ULTIMATE.start_main1_~y~0#1|) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse50) 256) 0)) (= .cse48 0)))))))))) (or .cse26 (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_21| 0) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse51 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse52 (mod (+ .cse51 |c_ULTIMATE.start_gcd_test_~b#1|) 256))) (let ((.cse53 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| (+ (- 256) .cse52)) 256))) (or (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (<= (mod (+ .cse51 .cse2) 256) 127) (not (<= (mod .cse51 256) 127)) (<= .cse52 127) (< (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_20|) .cse52) (<= .cse53 |c_ULTIMATE.start_main1_~y~0#1|) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse53) 256) 0)) (= .cse51 0)))))))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse55 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse54 (mod .cse55 256))) (let ((.cse56 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| .cse54) 256))) (or (= .cse54 0) (<= (mod (+ .cse55 .cse2) 256) 127) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse56) 256) 0)) (not (<= .cse54 127)) (< |ULTIMATE.start_gcd_test_~a#1| 0) (<= (mod (+ .cse55 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127) (< |v_ULTIMATE.start_gcd_test_~a#1_20| .cse54) (<= .cse56 |c_ULTIMATE.start_main1_~y~0#1|)))))) (< |v_ULTIMATE.start_gcd_test_~a#1_21| 0))))) (or .cse7 (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse58 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse59 (mod .cse58 256))) (let ((.cse57 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| (+ (- 256) .cse59)) 256))) (or (<= .cse57 |c_ULTIMATE.start_main1_~y~0#1|) (not (<= (mod (+ .cse58 .cse2) 256) 127)) (< (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_20|) .cse59) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse57) 256) 0)) (not (<= (mod (+ .cse58 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)) (<= .cse59 127) (< |ULTIMATE.start_gcd_test_~a#1| 0)))))) (< |v_ULTIMATE.start_gcd_test_~a#1_21| |c_ULTIMATE.start_gcd_test_~b#1|))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse62 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse60 (mod (+ .cse62 .cse2) 256))) (let ((.cse61 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| .cse60) 256))) (or (not (<= .cse60 127)) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse61) 256) 0)) (< |v_ULTIMATE.start_gcd_test_~a#1_20| .cse60) (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (not (<= (mod (+ .cse62 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)) (= .cse60 0) (<= .cse61 |c_ULTIMATE.start_main1_~y~0#1|) (<= (mod .cse62 256) 127)))))) (< |v_ULTIMATE.start_gcd_test_~a#1_21| |c_ULTIMATE.start_gcd_test_~b#1|))))) (or .cse26 (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse64 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse63 (mod (+ .cse64 |c_ULTIMATE.start_gcd_test_~b#1|) 256))) (let ((.cse65 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| .cse63) 256))) (or (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (not (<= .cse63 127)) (<= (mod (+ .cse64 .cse2) 256) 127) (= 0 .cse63) (not (<= (mod .cse64 256) 127)) (< |v_ULTIMATE.start_gcd_test_~a#1_20| .cse63) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse65) 256) 0)) (<= .cse65 |c_ULTIMATE.start_main1_~y~0#1|) (= .cse64 0)))))) (< |v_ULTIMATE.start_gcd_test_~a#1_21| 0))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_21| 0) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse67 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse66 (mod .cse67 256))) (let ((.cse68 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| .cse66) 256))) (or (= .cse66 0) (not (<= (mod (+ .cse67 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)) (<= (mod (+ .cse67 .cse2) 256) 127) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse68) 256) 0)) (not (<= .cse66 127)) (< |ULTIMATE.start_gcd_test_~a#1| 0) (< |v_ULTIMATE.start_gcd_test_~a#1_20| .cse66) (<= .cse68 |c_ULTIMATE.start_main1_~y~0#1|)))))))))) (or .cse7 (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse69 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse71 (mod (+ .cse69 .cse2) 256))) (let ((.cse70 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| (+ (- 256) .cse71)) 256))) (or (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (not (<= (mod (+ .cse69 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)) (<= .cse70 |c_ULTIMATE.start_main1_~y~0#1|) (<= .cse71 127) (<= (mod .cse69 256) 127) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse70) 256) 0)) (< (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_20|) .cse71)))))) (< |v_ULTIMATE.start_gcd_test_~a#1_21| |c_ULTIMATE.start_gcd_test_~b#1|))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse74 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse73 (mod .cse74 256))) (let ((.cse72 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| (+ (- 256) .cse73)) 256))) (or (<= .cse72 |c_ULTIMATE.start_main1_~y~0#1|) (< (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_20|) .cse73) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse72) 256) 0)) (not (<= (mod (+ .cse74 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)) (<= (mod (+ .cse74 .cse2) 256) 127) (<= .cse73 127) (< |ULTIMATE.start_gcd_test_~a#1| 0)))))) (< |v_ULTIMATE.start_gcd_test_~a#1_21| |c_ULTIMATE.start_gcd_test_~b#1|))))) (or .cse26 (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_21| 0) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse75 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse76 (mod (+ .cse75 |c_ULTIMATE.start_gcd_test_~b#1|) 256))) (let ((.cse77 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| (+ (- 256) .cse76)) 256))) (or (not (<= (mod (+ .cse75 .cse2) 256) 127)) (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (<= (mod .cse75 256) 127) (<= .cse76 127) (< (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_20|) .cse76) (<= .cse77 |c_ULTIMATE.start_main1_~y~0#1|) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse77) 256) 0))))))))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse79 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse80 (mod .cse79 256))) (let ((.cse78 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| (+ (- 256) .cse80)) 256))) (or (<= .cse78 |c_ULTIMATE.start_main1_~y~0#1|) (not (<= (mod (+ .cse79 .cse2) 256) 127)) (< (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_20|) .cse80) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse78) 256) 0)) (<= .cse80 127) (< |ULTIMATE.start_gcd_test_~a#1| 0) (<= (mod (+ .cse79 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)))))) (< |v_ULTIMATE.start_gcd_test_~a#1_21| 0))))) (or .cse26 (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_21| 0) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse83 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse82 (mod .cse83 256))) (let ((.cse81 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| (+ (- 256) .cse82)) 256))) (or (<= .cse81 |c_ULTIMATE.start_main1_~y~0#1|) (< (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_20|) .cse82) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse81) 256) 0)) (<= (mod (+ .cse83 .cse2) 256) 127) (<= .cse82 127) (< |ULTIMATE.start_gcd_test_~a#1| 0) (<= (mod (+ .cse83 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)))))))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse84 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse85 (mod (+ .cse84 |c_ULTIMATE.start_gcd_test_~b#1|) 256))) (let ((.cse86 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| (+ (- 256) .cse85)) 256))) (or (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (<= (mod (+ .cse84 .cse2) 256) 127) (<= (mod .cse84 256) 127) (<= .cse85 127) (< (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_20|) .cse85) (<= .cse86 |c_ULTIMATE.start_main1_~y~0#1|) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse86) 256) 0))))))) (< |v_ULTIMATE.start_gcd_test_~a#1_21| 0))))) (or .cse7 (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse89 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse87 (mod (+ .cse89 .cse2) 256))) (let ((.cse88 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| .cse87) 256))) (or (not (<= .cse87 127)) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse88) 256) 0)) (< |v_ULTIMATE.start_gcd_test_~a#1_20| .cse87) (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (not (<= (mod (+ .cse89 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)) (= .cse87 0) (<= .cse88 |c_ULTIMATE.start_main1_~y~0#1|) (not (<= (mod .cse89 256) 127))))))) (< |v_ULTIMATE.start_gcd_test_~a#1_21| |c_ULTIMATE.start_gcd_test_~b#1|))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse90 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse91 (mod .cse90 256))) (let ((.cse92 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| .cse91) 256))) (or (not (<= (mod (+ .cse90 .cse2) 256) 127)) (= .cse91 0) (not (<= (mod (+ .cse90 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse92) 256) 0)) (not (<= .cse91 127)) (< |ULTIMATE.start_gcd_test_~a#1| 0) (< |v_ULTIMATE.start_gcd_test_~a#1_20| .cse91) (<= .cse92 |c_ULTIMATE.start_main1_~y~0#1|)))))) (< |v_ULTIMATE.start_gcd_test_~a#1_21| |c_ULTIMATE.start_gcd_test_~b#1|))))) (or .cse26 (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_21| 0) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse94 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse95 (mod .cse94 256))) (let ((.cse93 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| (+ (- 256) .cse95)) 256))) (or (<= .cse93 |c_ULTIMATE.start_main1_~y~0#1|) (not (<= (mod (+ .cse94 .cse2) 256) 127)) (< (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_20|) .cse95) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse93) 256) 0)) (not (<= (mod (+ .cse94 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)) (<= .cse95 127) (< |ULTIMATE.start_gcd_test_~a#1| 0)))))))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse96 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse97 (mod (+ .cse96 |c_ULTIMATE.start_gcd_test_~b#1|) 256))) (let ((.cse98 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| .cse97) 256))) (or (not (<= (mod (+ .cse96 .cse2) 256) 127)) (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (not (<= .cse97 127)) (<= (mod .cse96 256) 127) (= 0 .cse97) (< |v_ULTIMATE.start_gcd_test_~a#1_20| .cse97) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse98) 256) 0)) (<= .cse98 |c_ULTIMATE.start_main1_~y~0#1|)))))) (< |v_ULTIMATE.start_gcd_test_~a#1_21| 0)))))))) (not (< 0 |c_ULTIMATE.start_main1_~y~0#1|))) is different from true [2022-11-18 20:13:33,808 WARN L233 SmtUtils]: Spent 1.35m on a formula simplification that was a NOOP. DAG size: 134 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 20:13:54,732 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2022-11-18 20:13:54,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:13:54,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435605157] [2022-11-18 20:13:54,733 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 20:13:54,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1301288955] [2022-11-18 20:13:54,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1301288955] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:13:54,733 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 20:13:54,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2022-11-18 20:13:54,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042411261] [2022-11-18 20:13:54,734 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 20:13:54,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-18 20:13:54,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:13:54,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-18 20:13:54,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=263, Unknown=19, NotChecked=34, Total=380 [2022-11-18 20:13:54,736 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand has 20 states, 20 states have (on average 1.25) internal successors, (25), 20 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:13:56,818 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse8 (< |c_ULTIMATE.start_gcd_test_~b#1| 0))) (let ((.cse0 (not .cse8))) (and .cse0 (<= |c_ULTIMATE.start_main1_~y~0#1| 127) (= |c_ULTIMATE.start_main1_~y~0#1| |c_ULTIMATE.start_gcd_test_~b#1|) (or (= |c_ULTIMATE.start_gcd_test_~b#1| 0) (let ((.cse3 (* |c_ULTIMATE.start_gcd_test_~b#1| 255))) (and (or (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse2 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse1 (mod .cse2 256))) (let ((.cse4 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| .cse1) 256))) (or (= .cse1 0) (<= (mod (+ .cse2 .cse3) 256) 127) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse4) 256) 0)) (not (<= .cse1 127)) (< |ULTIMATE.start_gcd_test_~a#1| 0) (<= (mod (+ .cse2 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127) (< |v_ULTIMATE.start_gcd_test_~a#1_20| .cse1) (<= .cse4 |c_ULTIMATE.start_main1_~y~0#1|)))))) (< |v_ULTIMATE.start_gcd_test_~a#1_21| |c_ULTIMATE.start_gcd_test_~b#1|))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse7 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse6 (mod (+ .cse7 .cse3) 256))) (let ((.cse5 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| (+ (- 256) .cse6)) 256))) (or (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (<= .cse5 |c_ULTIMATE.start_main1_~y~0#1|) (<= .cse6 127) (not (<= (mod .cse7 256) 127)) (<= (mod (+ .cse7 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse5) 256) 0)) (< (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_20|) .cse6) (= .cse7 0)))))) (< |v_ULTIMATE.start_gcd_test_~a#1_21| |c_ULTIMATE.start_gcd_test_~b#1|)))) .cse8) (or .cse8 (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse11 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse10 (mod .cse11 256))) (let ((.cse9 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| (+ (- 256) .cse10)) 256))) (or (<= .cse9 |c_ULTIMATE.start_main1_~y~0#1|) (< (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_20|) .cse10) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse9) 256) 0)) (<= (mod (+ .cse11 .cse3) 256) 127) (<= .cse10 127) (< |ULTIMATE.start_gcd_test_~a#1| 0) (<= (mod (+ .cse11 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)))))) (< |v_ULTIMATE.start_gcd_test_~a#1_21| |c_ULTIMATE.start_gcd_test_~b#1|))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_21| |c_ULTIMATE.start_gcd_test_~b#1|) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse14 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse13 (mod (+ .cse14 .cse3) 256))) (let ((.cse12 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| (+ (- 256) .cse13)) 256))) (or (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (<= .cse12 |c_ULTIMATE.start_main1_~y~0#1|) (<= .cse13 127) (<= (mod .cse14 256) 127) (<= (mod (+ .cse14 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse12) 256) 0)) (< (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_20|) .cse13)))))))))) (or (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse15 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse17 (mod (+ .cse15 .cse3) 256))) (let ((.cse16 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| (+ (- 256) .cse17)) 256))) (or (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (not (<= (mod (+ .cse15 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)) (<= .cse16 |c_ULTIMATE.start_main1_~y~0#1|) (<= .cse17 127) (not (<= (mod .cse15 256) 127)) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse16) 256) 0)) (< (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_20|) .cse17) (= .cse15 0)))))) (< |v_ULTIMATE.start_gcd_test_~a#1_21| |c_ULTIMATE.start_gcd_test_~b#1|))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse19 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse18 (mod .cse19 256))) (let ((.cse20 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| .cse18) 256))) (or (= .cse18 0) (not (<= (mod (+ .cse19 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)) (<= (mod (+ .cse19 .cse3) 256) 127) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse20) 256) 0)) (not (<= .cse18 127)) (< |ULTIMATE.start_gcd_test_~a#1| 0) (< |v_ULTIMATE.start_gcd_test_~a#1_20| .cse18) (<= .cse20 |c_ULTIMATE.start_main1_~y~0#1|)))))) (< |v_ULTIMATE.start_gcd_test_~a#1_21| |c_ULTIMATE.start_gcd_test_~b#1|)))) .cse8) (or (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse21 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse22 (mod .cse21 256))) (let ((.cse23 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| .cse22) 256))) (or (not (<= (mod (+ .cse21 .cse3) 256) 127)) (= .cse22 0) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse23) 256) 0)) (not (<= .cse22 127)) (< |ULTIMATE.start_gcd_test_~a#1| 0) (<= (mod (+ .cse21 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127) (< |v_ULTIMATE.start_gcd_test_~a#1_20| .cse22) (<= .cse23 |c_ULTIMATE.start_main1_~y~0#1|)))))) (< |v_ULTIMATE.start_gcd_test_~a#1_21| |c_ULTIMATE.start_gcd_test_~b#1|))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse26 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse24 (mod (+ .cse26 .cse3) 256))) (let ((.cse25 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| .cse24) 256))) (or (not (<= .cse24 127)) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse25) 256) 0)) (< |v_ULTIMATE.start_gcd_test_~a#1_20| .cse24) (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (= .cse24 0) (<= .cse25 |c_ULTIMATE.start_main1_~y~0#1|) (not (<= (mod .cse26 256) 127)) (<= (mod (+ .cse26 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127) (= .cse26 0)))))) (< |v_ULTIMATE.start_gcd_test_~a#1_21| |c_ULTIMATE.start_gcd_test_~b#1|)))) .cse8) (or .cse0 (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse29 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse28 (mod .cse29 256))) (let ((.cse27 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| (+ (- 256) .cse28)) 256))) (or (<= .cse27 |c_ULTIMATE.start_main1_~y~0#1|) (< (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_20|) .cse28) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse27) 256) 0)) (not (<= (mod (+ .cse29 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)) (<= (mod (+ .cse29 .cse3) 256) 127) (<= .cse28 127) (< |ULTIMATE.start_gcd_test_~a#1| 0)))))) (< |v_ULTIMATE.start_gcd_test_~a#1_21| 0))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_21| 0) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse31 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse30 (mod (+ .cse31 |c_ULTIMATE.start_gcd_test_~b#1|) 256))) (let ((.cse32 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| .cse30) 256))) (or (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (not (<= .cse30 127)) (<= (mod (+ .cse31 .cse3) 256) 127) (<= (mod .cse31 256) 127) (= 0 .cse30) (< |v_ULTIMATE.start_gcd_test_~a#1_20| .cse30) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse32) 256) 0)) (<= .cse32 |c_ULTIMATE.start_main1_~y~0#1|)))))))))) (or (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse35 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse33 (mod (+ .cse35 .cse3) 256))) (let ((.cse34 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| .cse33) 256))) (or (not (<= .cse33 127)) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse34) 256) 0)) (< |v_ULTIMATE.start_gcd_test_~a#1_20| .cse33) (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (= .cse33 0) (<= .cse34 |c_ULTIMATE.start_main1_~y~0#1|) (<= (mod .cse35 256) 127) (<= (mod (+ .cse35 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)))))) (< |v_ULTIMATE.start_gcd_test_~a#1_21| |c_ULTIMATE.start_gcd_test_~b#1|))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse37 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse38 (mod .cse37 256))) (let ((.cse36 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| (+ (- 256) .cse38)) 256))) (or (<= .cse36 |c_ULTIMATE.start_main1_~y~0#1|) (not (<= (mod (+ .cse37 .cse3) 256) 127)) (< (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_20|) .cse38) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse36) 256) 0)) (<= .cse38 127) (< |ULTIMATE.start_gcd_test_~a#1| 0) (<= (mod (+ .cse37 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)))))) (< |v_ULTIMATE.start_gcd_test_~a#1_21| |c_ULTIMATE.start_gcd_test_~b#1|)))) .cse8) (or .cse0 (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse39 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse40 (mod (+ .cse39 |c_ULTIMATE.start_gcd_test_~b#1|) 256))) (let ((.cse41 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| .cse40) 256))) (or (not (<= (mod (+ .cse39 .cse3) 256) 127)) (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (not (<= .cse40 127)) (= 0 .cse40) (not (<= (mod .cse39 256) 127)) (< |v_ULTIMATE.start_gcd_test_~a#1_20| .cse40) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse41) 256) 0)) (<= .cse41 |c_ULTIMATE.start_main1_~y~0#1|)))))) (< |v_ULTIMATE.start_gcd_test_~a#1_21| 0))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse42 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse43 (mod .cse42 256))) (let ((.cse44 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| .cse43) 256))) (or (not (<= (mod (+ .cse42 .cse3) 256) 127)) (= .cse43 0) (not (<= (mod (+ .cse42 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse44) 256) 0)) (not (<= .cse43 127)) (< |ULTIMATE.start_gcd_test_~a#1| 0) (< |v_ULTIMATE.start_gcd_test_~a#1_20| .cse43) (<= .cse44 |c_ULTIMATE.start_main1_~y~0#1|)))))) (< |v_ULTIMATE.start_gcd_test_~a#1_21| 0))))) (or .cse0 (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_21| 0) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse45 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse46 (mod .cse45 256))) (let ((.cse47 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| .cse46) 256))) (or (not (<= (mod (+ .cse45 .cse3) 256) 127)) (= .cse46 0) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse47) 256) 0)) (not (<= .cse46 127)) (< |ULTIMATE.start_gcd_test_~a#1| 0) (<= (mod (+ .cse45 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127) (< |v_ULTIMATE.start_gcd_test_~a#1_20| .cse46) (<= .cse47 |c_ULTIMATE.start_main1_~y~0#1|)))))))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_21| 0) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse48 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse49 (mod (+ .cse48 |c_ULTIMATE.start_gcd_test_~b#1|) 256))) (let ((.cse50 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| (+ (- 256) .cse49)) 256))) (or (not (<= (mod (+ .cse48 .cse3) 256) 127)) (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (not (<= (mod .cse48 256) 127)) (<= .cse49 127) (< (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_20|) .cse49) (<= .cse50 |c_ULTIMATE.start_main1_~y~0#1|) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse50) 256) 0)) (= .cse48 0)))))))))) (or .cse0 (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_21| 0) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse51 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse52 (mod (+ .cse51 |c_ULTIMATE.start_gcd_test_~b#1|) 256))) (let ((.cse53 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| (+ (- 256) .cse52)) 256))) (or (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (<= (mod (+ .cse51 .cse3) 256) 127) (not (<= (mod .cse51 256) 127)) (<= .cse52 127) (< (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_20|) .cse52) (<= .cse53 |c_ULTIMATE.start_main1_~y~0#1|) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse53) 256) 0)) (= .cse51 0)))))))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse55 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse54 (mod .cse55 256))) (let ((.cse56 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| .cse54) 256))) (or (= .cse54 0) (<= (mod (+ .cse55 .cse3) 256) 127) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse56) 256) 0)) (not (<= .cse54 127)) (< |ULTIMATE.start_gcd_test_~a#1| 0) (<= (mod (+ .cse55 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127) (< |v_ULTIMATE.start_gcd_test_~a#1_20| .cse54) (<= .cse56 |c_ULTIMATE.start_main1_~y~0#1|)))))) (< |v_ULTIMATE.start_gcd_test_~a#1_21| 0))))) (or .cse8 (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse58 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse59 (mod .cse58 256))) (let ((.cse57 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| (+ (- 256) .cse59)) 256))) (or (<= .cse57 |c_ULTIMATE.start_main1_~y~0#1|) (not (<= (mod (+ .cse58 .cse3) 256) 127)) (< (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_20|) .cse59) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse57) 256) 0)) (not (<= (mod (+ .cse58 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)) (<= .cse59 127) (< |ULTIMATE.start_gcd_test_~a#1| 0)))))) (< |v_ULTIMATE.start_gcd_test_~a#1_21| |c_ULTIMATE.start_gcd_test_~b#1|))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse62 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse60 (mod (+ .cse62 .cse3) 256))) (let ((.cse61 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| .cse60) 256))) (or (not (<= .cse60 127)) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse61) 256) 0)) (< |v_ULTIMATE.start_gcd_test_~a#1_20| .cse60) (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (not (<= (mod (+ .cse62 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)) (= .cse60 0) (<= .cse61 |c_ULTIMATE.start_main1_~y~0#1|) (<= (mod .cse62 256) 127)))))) (< |v_ULTIMATE.start_gcd_test_~a#1_21| |c_ULTIMATE.start_gcd_test_~b#1|))))) (or .cse0 (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse64 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse63 (mod (+ .cse64 |c_ULTIMATE.start_gcd_test_~b#1|) 256))) (let ((.cse65 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| .cse63) 256))) (or (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (not (<= .cse63 127)) (<= (mod (+ .cse64 .cse3) 256) 127) (= 0 .cse63) (not (<= (mod .cse64 256) 127)) (< |v_ULTIMATE.start_gcd_test_~a#1_20| .cse63) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse65) 256) 0)) (<= .cse65 |c_ULTIMATE.start_main1_~y~0#1|) (= .cse64 0)))))) (< |v_ULTIMATE.start_gcd_test_~a#1_21| 0))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_21| 0) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse67 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse66 (mod .cse67 256))) (let ((.cse68 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| .cse66) 256))) (or (= .cse66 0) (not (<= (mod (+ .cse67 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)) (<= (mod (+ .cse67 .cse3) 256) 127) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse68) 256) 0)) (not (<= .cse66 127)) (< |ULTIMATE.start_gcd_test_~a#1| 0) (< |v_ULTIMATE.start_gcd_test_~a#1_20| .cse66) (<= .cse68 |c_ULTIMATE.start_main1_~y~0#1|)))))))))) (or .cse8 (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse69 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse71 (mod (+ .cse69 .cse3) 256))) (let ((.cse70 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| (+ (- 256) .cse71)) 256))) (or (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (not (<= (mod (+ .cse69 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)) (<= .cse70 |c_ULTIMATE.start_main1_~y~0#1|) (<= .cse71 127) (<= (mod .cse69 256) 127) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse70) 256) 0)) (< (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_20|) .cse71)))))) (< |v_ULTIMATE.start_gcd_test_~a#1_21| |c_ULTIMATE.start_gcd_test_~b#1|))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse74 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse73 (mod .cse74 256))) (let ((.cse72 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| (+ (- 256) .cse73)) 256))) (or (<= .cse72 |c_ULTIMATE.start_main1_~y~0#1|) (< (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_20|) .cse73) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse72) 256) 0)) (not (<= (mod (+ .cse74 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)) (<= (mod (+ .cse74 .cse3) 256) 127) (<= .cse73 127) (< |ULTIMATE.start_gcd_test_~a#1| 0)))))) (< |v_ULTIMATE.start_gcd_test_~a#1_21| |c_ULTIMATE.start_gcd_test_~b#1|))))) (or .cse0 (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_21| 0) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse75 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse76 (mod (+ .cse75 |c_ULTIMATE.start_gcd_test_~b#1|) 256))) (let ((.cse77 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| (+ (- 256) .cse76)) 256))) (or (not (<= (mod (+ .cse75 .cse3) 256) 127)) (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (<= (mod .cse75 256) 127) (<= .cse76 127) (< (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_20|) .cse76) (<= .cse77 |c_ULTIMATE.start_main1_~y~0#1|) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse77) 256) 0))))))))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse79 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse80 (mod .cse79 256))) (let ((.cse78 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| (+ (- 256) .cse80)) 256))) (or (<= .cse78 |c_ULTIMATE.start_main1_~y~0#1|) (not (<= (mod (+ .cse79 .cse3) 256) 127)) (< (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_20|) .cse80) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse78) 256) 0)) (<= .cse80 127) (< |ULTIMATE.start_gcd_test_~a#1| 0) (<= (mod (+ .cse79 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)))))) (< |v_ULTIMATE.start_gcd_test_~a#1_21| 0))))) (or .cse0 (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_21| 0) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse83 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse82 (mod .cse83 256))) (let ((.cse81 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| (+ (- 256) .cse82)) 256))) (or (<= .cse81 |c_ULTIMATE.start_main1_~y~0#1|) (< (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_20|) .cse82) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse81) 256) 0)) (<= (mod (+ .cse83 .cse3) 256) 127) (<= .cse82 127) (< |ULTIMATE.start_gcd_test_~a#1| 0) (<= (mod (+ .cse83 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)))))))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse84 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse85 (mod (+ .cse84 |c_ULTIMATE.start_gcd_test_~b#1|) 256))) (let ((.cse86 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| (+ (- 256) .cse85)) 256))) (or (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (<= (mod (+ .cse84 .cse3) 256) 127) (<= (mod .cse84 256) 127) (<= .cse85 127) (< (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_20|) .cse85) (<= .cse86 |c_ULTIMATE.start_main1_~y~0#1|) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse86) 256) 0))))))) (< |v_ULTIMATE.start_gcd_test_~a#1_21| 0))))) (or .cse8 (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse89 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse87 (mod (+ .cse89 .cse3) 256))) (let ((.cse88 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| .cse87) 256))) (or (not (<= .cse87 127)) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse88) 256) 0)) (< |v_ULTIMATE.start_gcd_test_~a#1_20| .cse87) (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (not (<= (mod (+ .cse89 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)) (= .cse87 0) (<= .cse88 |c_ULTIMATE.start_main1_~y~0#1|) (not (<= (mod .cse89 256) 127))))))) (< |v_ULTIMATE.start_gcd_test_~a#1_21| |c_ULTIMATE.start_gcd_test_~b#1|))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse90 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse91 (mod .cse90 256))) (let ((.cse92 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| .cse91) 256))) (or (not (<= (mod (+ .cse90 .cse3) 256) 127)) (= .cse91 0) (not (<= (mod (+ .cse90 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse92) 256) 0)) (not (<= .cse91 127)) (< |ULTIMATE.start_gcd_test_~a#1| 0) (< |v_ULTIMATE.start_gcd_test_~a#1_20| .cse91) (<= .cse92 |c_ULTIMATE.start_main1_~y~0#1|)))))) (< |v_ULTIMATE.start_gcd_test_~a#1_21| |c_ULTIMATE.start_gcd_test_~b#1|))))) (or .cse0 (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_21| 0) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse94 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse95 (mod .cse94 256))) (let ((.cse93 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| (+ (- 256) .cse95)) 256))) (or (<= .cse93 |c_ULTIMATE.start_main1_~y~0#1|) (not (<= (mod (+ .cse94 .cse3) 256) 127)) (< (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_20|) .cse95) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse93) 256) 0)) (not (<= (mod (+ .cse94 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)) (<= .cse95 127) (< |ULTIMATE.start_gcd_test_~a#1| 0)))))))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_21| Int)) (or (forall ((|v_ULTIMATE.start_gcd_test_~a#1_20| Int) (|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse96 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse97 (mod (+ .cse96 |c_ULTIMATE.start_gcd_test_~b#1|) 256))) (let ((.cse98 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_21| .cse97) 256))) (or (not (<= (mod (+ .cse96 .cse3) 256) 127)) (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (not (<= .cse97 127)) (<= (mod .cse96 256) 127) (= 0 .cse97) (< |v_ULTIMATE.start_gcd_test_~a#1_20| .cse97) (not (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_20| .cse98) 256) 0)) (<= .cse98 |c_ULTIMATE.start_main1_~y~0#1|)))))) (< |v_ULTIMATE.start_gcd_test_~a#1_21| 0))))))) (not (< 0 |c_ULTIMATE.start_main1_~y~0#1|)))))) is different from true [2022-11-18 20:14:08,348 WARN L233 SmtUtils]: Spent 6.21s on a formula simplification. DAG size of input: 57 DAG size of output: 52 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 20:14:10,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:14:10,837 INFO L93 Difference]: Finished difference Result 45 states and 50 transitions. [2022-11-18 20:14:10,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-18 20:14:10,837 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.25) internal successors, (25), 20 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-18 20:14:10,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:14:10,838 INFO L225 Difference]: With dead ends: 45 [2022-11-18 20:14:10,838 INFO L226 Difference]: Without dead ends: 35 [2022-11-18 20:14:10,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 336.1s TimeCoverageRelationStatistics Valid=90, Invalid=358, Unknown=22, NotChecked=82, Total=552 [2022-11-18 20:14:10,840 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 11 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 53 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:14:10,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 245 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 53 Unchecked, 0.0s Time] [2022-11-18 20:14:10,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-11-18 20:14:10,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-11-18 20:14:10,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 28 states have internal predecessors, (30), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-18 20:14:10,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2022-11-18 20:14:10,857 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 14 [2022-11-18 20:14:10,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:14:10,857 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2022-11-18 20:14:10,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 1.25) internal successors, (25), 20 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:14:10,858 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2022-11-18 20:14:10,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-18 20:14:10,858 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:14:10,859 INFO L195 NwaCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:14:10,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:14:11,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:14:11,062 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:14:11,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:14:11,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1722496713, now seen corresponding path program 4 times [2022-11-18 20:14:11,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:14:11,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590801751] [2022-11-18 20:14:11,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:14:11,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:14:11,072 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 20:14:11,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1246697286] [2022-11-18 20:14:11,073 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 20:14:11,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:14:11,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:14:11,075 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:14:11,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 20:14:11,259 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 20:14:11,259 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:14:11,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 53 conjunts are in the unsatisfiable core [2022-11-18 20:14:11,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:14:23,719 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 139 [2022-11-18 20:14:23,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:14:23,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590801751] [2022-11-18 20:14:23,720 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 20:14:23,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1246697286] [2022-11-18 20:14:23,720 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-11-18 20:14:23,731 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 20:14:23,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:14:23,921 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_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:61) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.getRedundancy(SimplifyDDA.java:625) 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:336) 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) ... 51 more [2022-11-18 20:14:23,925 INFO L158 Benchmark]: Toolchain (without parser) took 698110.86ms. Allocated memory was 132.1MB in the beginning and 172.0MB in the end (delta: 39.8MB). Free memory was 94.3MB in the beginning and 102.0MB in the end (delta: -7.7MB). Peak memory consumption was 32.3MB. Max. memory is 16.1GB. [2022-11-18 20:14:23,925 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 132.1MB. Free memory is still 110.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:14:23,925 INFO L158 Benchmark]: CACSL2BoogieTranslator took 385.06ms. Allocated memory is still 132.1MB. Free memory was 94.1MB in the beginning and 105.5MB in the end (delta: -11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 20:14:23,926 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.63ms. Allocated memory is still 132.1MB. Free memory was 105.5MB in the beginning and 103.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:14:23,926 INFO L158 Benchmark]: Boogie Preprocessor took 24.70ms. Allocated memory is still 132.1MB. Free memory was 103.9MB in the beginning and 102.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:14:23,926 INFO L158 Benchmark]: RCFGBuilder took 408.54ms. Allocated memory is still 132.1MB. Free memory was 102.3MB in the beginning and 89.9MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-18 20:14:23,927 INFO L158 Benchmark]: TraceAbstraction took 697228.52ms. Allocated memory was 132.1MB in the beginning and 172.0MB in the end (delta: 39.8MB). Free memory was 89.2MB in the beginning and 102.0MB in the end (delta: -12.8MB). Peak memory consumption was 28.4MB. Max. memory is 16.1GB. [2022-11-18 20:14:23,928 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 132.1MB. Free memory is still 110.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 385.06ms. Allocated memory is still 132.1MB. Free memory was 94.1MB in the beginning and 105.5MB in the end (delta: -11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.63ms. Allocated memory is still 132.1MB. Free memory was 105.5MB in the beginning and 103.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.70ms. Allocated memory is still 132.1MB. Free memory was 103.9MB in the beginning and 102.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 408.54ms. Allocated memory is still 132.1MB. Free memory was 102.3MB in the beginning and 89.9MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 697228.52ms. Allocated memory was 132.1MB in the beginning and 172.0MB in the end (delta: 39.8MB). Free memory was 89.2MB in the beginning and 102.0MB in the end (delta: -12.8MB). Peak memory consumption was 28.4MB. 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_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. No stderr output. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. No stderr output.: 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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_2+newton_2_6.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro --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 32bit --witnessprinter.graph.data.programhash 16f616cbb154d125e085ac05764879da22cdfe3693ed1f1a6c28186441fe892d --- 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-8393723 [2022-11-18 20:14:26,007 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:14:26,011 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:14:26,054 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:14:26,055 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:14:26,059 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:14:26,063 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:14:26,070 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:14:26,072 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:14:26,079 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:14:26,080 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:14:26,082 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:14:26,084 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:14:26,086 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:14:26,088 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:14:26,094 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:14:26,095 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:14:26,098 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:14:26,100 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:14:26,105 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:14:26,110 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:14:26,112 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:14:26,115 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:14:26,117 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:14:26,124 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:14:26,129 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:14:26,130 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:14:26,131 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:14:26,133 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:14:26,134 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:14:26,135 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:14:26,136 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:14:26,137 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:14:26,138 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:14:26,139 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:14:26,139 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:14:26,140 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:14:26,141 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:14:26,141 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:14:26,143 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:14:26,144 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:14:26,150 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-11-18 20:14:26,189 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:14:26,189 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:14:26,195 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:14:26,195 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:14:26,196 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:14:26,197 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:14:26,199 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:14:26,199 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:14:26,199 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:14:26,200 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:14:26,201 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:14:26,202 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:14:26,202 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:14:26,202 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:14:26,203 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:14:26,203 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:14:26,204 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 20:14:26,204 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-18 20:14:26,204 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-18 20:14:26,205 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:14:26,205 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:14:26,205 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:14:26,206 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:14:26,206 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:14:26,207 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:14:26,207 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:14:26,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:14:26,208 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:14:26,208 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:14:26,209 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:14:26,209 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-18 20:14:26,210 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-18 20:14:26,210 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:14:26,211 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:14:26,211 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:14:26,211 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-18 20:14:26,212 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16f616cbb154d125e085ac05764879da22cdfe3693ed1f1a6c28186441fe892d [2022-11-18 20:14:26,617 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:14:26,646 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:14:26,649 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:14:26,650 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:14:26,653 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:14:26,655 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/combinations/gcd_2+newton_2_6.i [2022-11-18 20:14:26,731 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/data/588896ee8/9a948892c9054d0182d3e3d2e0ae3b75/FLAGbd5e2f73a [2022-11-18 20:14:27,273 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:14:27,274 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/sv-benchmarks/c/combinations/gcd_2+newton_2_6.i [2022-11-18 20:14:27,283 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/data/588896ee8/9a948892c9054d0182d3e3d2e0ae3b75/FLAGbd5e2f73a [2022-11-18 20:14:27,624 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/data/588896ee8/9a948892c9054d0182d3e3d2e0ae3b75 [2022-11-18 20:14:27,629 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:14:27,632 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:14:27,636 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:14:27,637 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:14:27,640 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:14:27,641 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:14:27" (1/1) ... [2022-11-18 20:14:27,644 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3be037d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:14:27, skipping insertion in model container [2022-11-18 20:14:27,644 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:14:27" (1/1) ... [2022-11-18 20:14:27,652 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:14:27,680 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:14:27,924 WARN L234 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_ffde6e8a-4178-449a-8d66-7b3024fe33b3/sv-benchmarks/c/combinations/gcd_2+newton_2_6.i[1226,1239] [2022-11-18 20:14:27,973 WARN L234 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_ffde6e8a-4178-449a-8d66-7b3024fe33b3/sv-benchmarks/c/combinations/gcd_2+newton_2_6.i[2841,2854] [2022-11-18 20:14:27,975 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:14:28,045 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:14:28,074 WARN L234 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_ffde6e8a-4178-449a-8d66-7b3024fe33b3/sv-benchmarks/c/combinations/gcd_2+newton_2_6.i[1226,1239] [2022-11-18 20:14:28,087 WARN L234 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_ffde6e8a-4178-449a-8d66-7b3024fe33b3/sv-benchmarks/c/combinations/gcd_2+newton_2_6.i[2841,2854] [2022-11-18 20:14:28,088 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:14:28,105 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:14:28,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:14:28 WrapperNode [2022-11-18 20:14:28,105 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:14:28,107 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:14:28,107 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:14:28,107 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:14:28,115 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:14:28" (1/1) ... [2022-11-18 20:14:28,138 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:14:28" (1/1) ... [2022-11-18 20:14:28,159 INFO L138 Inliner]: procedures = 28, calls = 24, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 80 [2022-11-18 20:14:28,160 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:14:28,160 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:14:28,161 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:14:28,161 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:14:28,171 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:14:28" (1/1) ... [2022-11-18 20:14:28,172 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:14:28" (1/1) ... [2022-11-18 20:14:28,176 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:14:28" (1/1) ... [2022-11-18 20:14:28,176 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:14:28" (1/1) ... [2022-11-18 20:14:28,184 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:14:28" (1/1) ... [2022-11-18 20:14:28,188 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:14:28" (1/1) ... [2022-11-18 20:14:28,190 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:14:28" (1/1) ... [2022-11-18 20:14:28,192 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:14:28" (1/1) ... [2022-11-18 20:14:28,195 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:14:28,196 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:14:28,196 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:14:28,197 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:14:28,197 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:14:28" (1/1) ... [2022-11-18 20:14:28,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:14:28,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:14:28,232 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:14:28,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:14:28,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:14:28,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-18 20:14:28,296 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2022-11-18 20:14:28,296 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2022-11-18 20:14:28,297 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-11-18 20:14:28,297 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-11-18 20:14:28,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:14:28,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:14:28,407 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:14:28,409 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:14:36,806 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:14:36,814 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:14:36,815 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 20:14:36,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:14:36 BoogieIcfgContainer [2022-11-18 20:14:36,817 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:14:36,820 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:14:36,821 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:14:36,825 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:14:36,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:14:27" (1/3) ... [2022-11-18 20:14:36,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b401985 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:14:36, skipping insertion in model container [2022-11-18 20:14:36,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:14:28" (2/3) ... [2022-11-18 20:14:36,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b401985 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:14:36, skipping insertion in model container [2022-11-18 20:14:36,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:14:36" (3/3) ... [2022-11-18 20:14:36,828 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_2+newton_2_6.i [2022-11-18 20:14:36,847 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:14:36,847 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-18 20:14:36,902 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:14:36,911 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;@62b14467, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:14:36,912 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-18 20:14:36,917 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 28 states have (on average 1.3928571428571428) internal successors, (39), 30 states have internal predecessors, (39), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-18 20:14:36,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-18 20:14:36,930 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:14:36,932 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:14:36,934 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:14:36,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:14:36,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1709385323, now seen corresponding path program 1 times [2022-11-18 20:14:36,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:14:36,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1675457402] [2022-11-18 20:14:36,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:14:36,964 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 [2022-11-18 20:14:36,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:14:36,971 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 20:14:36,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 20:14:37,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:14:37,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 20:14:37,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:14:37,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:14:37,341 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:14:37,342 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:14:37,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1675457402] [2022-11-18 20:14:37,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1675457402] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:14:37,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:14:37,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:14:37,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7128702] [2022-11-18 20:14:37,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:14:37,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:14:37,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:14:37,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:14:37,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:14:37,406 INFO L87 Difference]: Start difference. First operand has 37 states, 28 states have (on average 1.3928571428571428) internal successors, (39), 30 states have internal predecessors, (39), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:14:37,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:14:37,477 INFO L93 Difference]: Finished difference Result 68 states and 84 transitions. [2022-11-18 20:14:37,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:14:37,482 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-18 20:14:37,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:14:37,490 INFO L225 Difference]: With dead ends: 68 [2022-11-18 20:14:37,490 INFO L226 Difference]: Without dead ends: 30 [2022-11-18 20:14:37,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:14:37,498 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 0 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 4 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:14:37,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 80 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 4 Unchecked, 0.0s Time] [2022-11-18 20:14:37,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-18 20:14:37,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-11-18 20:14:37,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 23 states have internal predecessors, (26), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-18 20:14:37,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2022-11-18 20:14:37,544 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 11 [2022-11-18 20:14:37,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:14:37,545 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2022-11-18 20:14:37,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:14:37,546 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2022-11-18 20:14:37,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-18 20:14:37,547 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:14:37,548 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:14:37,563 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/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)] Ended with exit code 0 [2022-11-18 20:14:37,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 20:14:37,760 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:14:37,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:14:37,761 INFO L85 PathProgramCache]: Analyzing trace with hash 65622039, now seen corresponding path program 1 times [2022-11-18 20:14:37,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:14:37,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [653855637] [2022-11-18 20:14:37,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:14:37,762 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 [2022-11-18 20:14:37,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:14:37,763 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 20:14:37,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 20:14:37,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:14:37,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:14:37,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:14:38,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:14:38,005 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:14:38,005 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:14:38,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [653855637] [2022-11-18 20:14:38,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [653855637] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:14:38,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:14:38,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:14:38,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563688232] [2022-11-18 20:14:38,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:14:38,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:14:38,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:14:38,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:14:38,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:14:38,014 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:14:38,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:14:38,254 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2022-11-18 20:14:38,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:14:38,257 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-18 20:14:38,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:14:38,258 INFO L225 Difference]: With dead ends: 37 [2022-11-18 20:14:38,258 INFO L226 Difference]: Without dead ends: 31 [2022-11-18 20:14:38,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:14:38,260 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 4 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:14:38,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 84 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:14:38,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-11-18 20:14:38,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2022-11-18 20:14:38,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 23 states have internal predecessors, (26), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-18 20:14:38,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2022-11-18 20:14:38,279 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 11 [2022-11-18 20:14:38,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:14:38,281 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2022-11-18 20:14:38,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:14:38,281 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2022-11-18 20:14:38,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-18 20:14:38,283 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:14:38,283 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:14:38,300 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 20:14:38,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 20:14:38,490 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:14:38,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:14:38,491 INFO L85 PathProgramCache]: Analyzing trace with hash 149955676, now seen corresponding path program 1 times [2022-11-18 20:14:38,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:14:38,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [949903018] [2022-11-18 20:14:38,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:14:38,493 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 [2022-11-18 20:14:38,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:14:38,494 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 20:14:38,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 20:14:38,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:14:38,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:14:38,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:14:38,764 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 20:14:38,764 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:14:38,765 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:14:38,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [949903018] [2022-11-18 20:14:38,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [949903018] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:14:38,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:14:38,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:14:38,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477280550] [2022-11-18 20:14:38,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:14:38,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:14:38,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:14:38,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:14:38,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:14:38,768 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:14:38,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:14:38,900 INFO L93 Difference]: Finished difference Result 38 states and 42 transitions. [2022-11-18 20:14:38,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:14:38,903 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-18 20:14:38,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:14:38,904 INFO L225 Difference]: With dead ends: 38 [2022-11-18 20:14:38,904 INFO L226 Difference]: Without dead ends: 30 [2022-11-18 20:14:38,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:14:38,906 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 2 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:14:38,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 84 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:14:38,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-18 20:14:38,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-11-18 20:14:38,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 23 states have internal predecessors, (25), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-18 20:14:38,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2022-11-18 20:14:38,914 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 12 [2022-11-18 20:14:38,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:14:38,915 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2022-11-18 20:14:38,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:14:38,915 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2022-11-18 20:14:38,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-18 20:14:38,916 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:14:38,917 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:14:38,939 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/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)] Forceful destruction successful, exit code 0 [2022-11-18 20:14:39,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 20:14:39,131 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:14:39,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:14:39,132 INFO L85 PathProgramCache]: Analyzing trace with hash -659390950, now seen corresponding path program 1 times [2022-11-18 20:14:39,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:14:39,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1075157427] [2022-11-18 20:14:39,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:14:39,133 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 [2022-11-18 20:14:39,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:14:39,135 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 20:14:39,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/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)] Waiting until timeout for monitored process [2022-11-18 20:14:39,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:14:39,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-18 20:14:39,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:14:39,927 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:14:39,928 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:14:40,779 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:14:40,779 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:14:40,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1075157427] [2022-11-18 20:14:40,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1075157427] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:14:40,780 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 20:14:40,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2022-11-18 20:14:40,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806212757] [2022-11-18 20:14:40,781 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 20:14:40,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-18 20:14:40,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:14:40,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-18 20:14:40,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-18 20:14:40,783 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand has 14 states, 14 states have (on average 1.5) internal successors, (21), 14 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:14:43,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:14:43,651 INFO L93 Difference]: Finished difference Result 47 states and 52 transitions. [2022-11-18 20:14:43,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-18 20:14:43,654 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.5) internal successors, (21), 14 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-18 20:14:43,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:14:43,656 INFO L225 Difference]: With dead ends: 47 [2022-11-18 20:14:43,656 INFO L226 Difference]: Without dead ends: 33 [2022-11-18 20:14:43,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=151, Invalid=449, Unknown=0, NotChecked=0, Total=600 [2022-11-18 20:14:43,659 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 42 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-18 20:14:43,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 224 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-18 20:14:43,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-11-18 20:14:43,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-11-18 20:14:43,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 25 states have (on average 1.12) internal successors, (28), 26 states have internal predecessors, (28), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-18 20:14:43,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2022-11-18 20:14:43,670 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 12 [2022-11-18 20:14:43,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:14:43,671 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2022-11-18 20:14:43,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.5) internal successors, (21), 14 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:14:43,672 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2022-11-18 20:14:43,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-18 20:14:43,672 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:14:43,673 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:14:43,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/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)] Forceful destruction successful, exit code 0 [2022-11-18 20:14:43,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 20:14:43,874 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:14:43,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:14:43,874 INFO L85 PathProgramCache]: Analyzing trace with hash -2084161321, now seen corresponding path program 2 times [2022-11-18 20:14:43,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:14:43,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1563787477] [2022-11-18 20:14:43,875 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:14:43,875 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 [2022-11-18 20:14:43,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:14:43,877 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 20:14:43,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffde6e8a-4178-449a-8d66-7b3024fe33b3/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 20:14:50,877 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:14:50,877 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:14:50,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-18 20:14:50,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:15:53,290 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:15:53,291 INFO L328 TraceCheckSpWp]: Computing backward predicates...