/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/email_spec4_product24.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 17:32:39,519 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 17:32:39,609 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 17:32:39,611 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 17:32:39,612 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 17:32:39,624 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 17:32:39,625 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 17:32:39,625 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 17:32:39,625 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 17:32:39,626 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 17:32:39,626 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 17:32:39,626 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 17:32:39,626 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 17:32:39,627 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 17:32:39,627 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 17:32:39,627 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 17:32:39,627 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 17:32:39,628 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 17:32:39,628 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 17:32:39,628 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 17:32:39,628 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 17:32:39,629 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 17:32:39,629 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 17:32:39,629 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 17:32:39,644 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 17:32:39,645 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 17:32:39,645 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 17:32:39,645 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 17:32:39,645 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 17:32:39,645 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 17:32:39,646 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 17:32:39,646 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 17:32:39,646 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 17:32:39,646 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 17:32:39,646 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:32:39,647 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 17:32:39,647 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 17:32:39,647 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 17:32:39,647 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 17:32:39,647 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 17:32:39,648 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 17:32:39,648 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 17:32:39,648 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 17:32:39,648 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 17:32:39,648 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 17:32:39,648 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 17:32:39,648 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 17:32:39,797 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 17:32:39,810 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 17:32:39,812 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 17:32:39,813 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 17:32:39,813 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 17:32:39,814 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_product24.cil.c [2023-12-16 17:32:40,941 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 17:32:41,190 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 17:32:41,190 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product24.cil.c [2023-12-16 17:32:41,224 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6823b317/b3adb910ab1d4207a2a6def363be68cb/FLAG44aaef7b7 [2023-12-16 17:32:41,236 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6823b317/b3adb910ab1d4207a2a6def363be68cb [2023-12-16 17:32:41,238 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 17:32:41,239 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 17:32:41,240 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 17:32:41,240 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 17:32:41,243 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 17:32:41,243 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:32:41" (1/1) ... [2023-12-16 17:32:41,244 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7840048c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:32:41, skipping insertion in model container [2023-12-16 17:32:41,244 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:32:41" (1/1) ... [2023-12-16 17:32:41,302 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 17:32:41,801 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product24.cil.c[33676,33689] [2023-12-16 17:32:42,022 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:32:42,039 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-16 17:32:42,062 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 17:32:42,115 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product24.cil.c[33676,33689] [2023-12-16 17:32:42,154 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:32:42,159 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 17:32:42,166 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [48] [2023-12-16 17:32:42,167 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [277] [2023-12-16 17:32:42,167 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1357] [2023-12-16 17:32:42,167 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1375] [2023-12-16 17:32:42,167 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1424] [2023-12-16 17:32:42,167 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1433] [2023-12-16 17:32:42,167 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1799] [2023-12-16 17:32:42,167 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2211] [2023-12-16 17:32:42,167 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignForward_spec.i","") [2503] [2023-12-16 17:32:42,168 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2530] [2023-12-16 17:32:42,168 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2629] [2023-12-16 17:32:42,194 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product24.cil.c[33676,33689] [2023-12-16 17:32:42,233 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:32:42,267 INFO L206 MainTranslator]: Completed translation [2023-12-16 17:32:42,268 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:32:42 WrapperNode [2023-12-16 17:32:42,268 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 17:32:42,269 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 17:32:42,269 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 17:32:42,269 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 17:32:42,274 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:32:42" (1/1) ... [2023-12-16 17:32:42,299 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:32:42" (1/1) ... [2023-12-16 17:32:42,343 INFO L138 Inliner]: procedures = 132, calls = 193, calls flagged for inlining = 63, calls inlined = 58, statements flattened = 979 [2023-12-16 17:32:42,344 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 17:32:42,345 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 17:32:42,345 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 17:32:42,345 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 17:32:42,353 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:32:42" (1/1) ... [2023-12-16 17:32:42,353 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:32:42" (1/1) ... [2023-12-16 17:32:42,359 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:32:42" (1/1) ... [2023-12-16 17:32:42,384 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2023-12-16 17:32:42,384 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:32:42" (1/1) ... [2023-12-16 17:32:42,384 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:32:42" (1/1) ... [2023-12-16 17:32:42,412 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:32:42" (1/1) ... [2023-12-16 17:32:42,435 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:32:42" (1/1) ... [2023-12-16 17:32:42,439 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:32:42" (1/1) ... [2023-12-16 17:32:42,441 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:32:42" (1/1) ... [2023-12-16 17:32:42,446 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 17:32:42,447 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 17:32:42,447 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 17:32:42,447 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 17:32:42,464 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:32:42" (1/1) ... [2023-12-16 17:32:42,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:32:42,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 17:32:42,503 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 17:32:42,522 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 17:32:42,530 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-12-16 17:32:42,530 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-12-16 17:32:42,530 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-16 17:32:42,530 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-16 17:32:42,530 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-16 17:32:42,531 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-16 17:32:42,531 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-16 17:32:42,531 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-16 17:32:42,532 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-16 17:32:42,532 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-16 17:32:42,534 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-16 17:32:42,534 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-16 17:32:42,534 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-16 17:32:42,534 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-16 17:32:42,534 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-16 17:32:42,534 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-16 17:32:42,534 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2023-12-16 17:32:42,534 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2023-12-16 17:32:42,535 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-16 17:32:42,535 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-16 17:32:42,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 17:32:42,535 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-16 17:32:42,535 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-16 17:32:42,535 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-16 17:32:42,535 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-16 17:32:42,535 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-16 17:32:42,535 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-16 17:32:42,535 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-16 17:32:42,535 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-16 17:32:42,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 17:32:42,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-16 17:32:42,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-16 17:32:42,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-16 17:32:42,536 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-16 17:32:42,536 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-16 17:32:42,536 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-16 17:32:42,536 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-16 17:32:42,536 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-16 17:32:42,536 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-16 17:32:42,536 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-16 17:32:42,536 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-16 17:32:42,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 17:32:42,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 17:32:42,788 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 17:32:42,790 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 17:32:43,465 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 17:32:43,556 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 17:32:43,557 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 17:32:43,557 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:32:43 BoogieIcfgContainer [2023-12-16 17:32:43,557 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 17:32:43,559 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 17:32:43,560 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 17:32:43,562 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 17:32:43,562 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 05:32:41" (1/3) ... [2023-12-16 17:32:43,563 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1edc467e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:32:43, skipping insertion in model container [2023-12-16 17:32:43,563 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:32:42" (2/3) ... [2023-12-16 17:32:43,563 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1edc467e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:32:43, skipping insertion in model container [2023-12-16 17:32:43,563 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:32:43" (3/3) ... [2023-12-16 17:32:43,564 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec4_product24.cil.c [2023-12-16 17:32:43,576 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 17:32:43,577 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 17:32:43,617 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 17:32:43,622 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5f776988, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 17:32:43,622 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 17:32:43,626 INFO L276 IsEmpty]: Start isEmpty. Operand has 299 states, 231 states have (on average 1.593073593073593) internal successors, (368), 233 states have internal predecessors, (368), 48 states have call successors, (48), 18 states have call predecessors, (48), 18 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-12-16 17:32:43,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-16 17:32:43,637 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:43,638 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:32:43,638 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:43,642 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:43,642 INFO L85 PathProgramCache]: Analyzing trace with hash -182342470, now seen corresponding path program 1 times [2023-12-16 17:32:43,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:43,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [499943778] [2023-12-16 17:32:43,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:32:43,652 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:32:43,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:43,654 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:32:43,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 17:32:43,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:32:43,896 INFO L262 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 17:32:43,901 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:43,923 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-16 17:32:43,923 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:32:43,924 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:43,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [499943778] [2023-12-16 17:32:43,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [499943778] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:32:43,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:32:43,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:32:43,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260011135] [2023-12-16 17:32:43,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:32:43,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 17:32:43,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:43,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 17:32:43,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 17:32:43,951 INFO L87 Difference]: Start difference. First operand has 299 states, 231 states have (on average 1.593073593073593) internal successors, (368), 233 states have internal predecessors, (368), 48 states have call successors, (48), 18 states have call predecessors, (48), 18 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) Second operand has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 17:32:44,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:44,016 INFO L93 Difference]: Finished difference Result 449 states and 684 transitions. [2023-12-16 17:32:44,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 17:32:44,021 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 86 [2023-12-16 17:32:44,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:44,029 INFO L225 Difference]: With dead ends: 449 [2023-12-16 17:32:44,029 INFO L226 Difference]: Without dead ends: 296 [2023-12-16 17:32:44,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 17:32:44,036 INFO L413 NwaCegarLoop]: 443 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:32:44,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 443 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:32:44,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2023-12-16 17:32:44,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 296. [2023-12-16 17:32:44,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 229 states have (on average 1.5764192139737991) internal successors, (361), 230 states have internal predecessors, (361), 48 states have call successors, (48), 18 states have call predecessors, (48), 18 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2023-12-16 17:32:44,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 456 transitions. [2023-12-16 17:32:44,084 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 456 transitions. Word has length 86 [2023-12-16 17:32:44,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:44,085 INFO L495 AbstractCegarLoop]: Abstraction has 296 states and 456 transitions. [2023-12-16 17:32:44,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 17:32:44,085 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 456 transitions. [2023-12-16 17:32:44,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-16 17:32:44,088 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:44,089 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:32:44,095 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2023-12-16 17:32:44,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:32:44,295 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:44,296 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:44,296 INFO L85 PathProgramCache]: Analyzing trace with hash 486913082, now seen corresponding path program 1 times [2023-12-16 17:32:44,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:44,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1038408139] [2023-12-16 17:32:44,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:32:44,297 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:32:44,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:44,298 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:32:44,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 17:32:44,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:32:44,507 INFO L262 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 17:32:44,510 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:44,570 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-16 17:32:44,570 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:32:44,570 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:44,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1038408139] [2023-12-16 17:32:44,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1038408139] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:32:44,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:32:44,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:32:44,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805591229] [2023-12-16 17:32:44,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:32:44,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:32:44,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:44,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:32:44,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:32:44,574 INFO L87 Difference]: Start difference. First operand 296 states and 456 transitions. Second operand has 5 states, 4 states have (on average 13.0) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-16 17:32:44,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:44,710 INFO L93 Difference]: Finished difference Result 587 states and 906 transitions. [2023-12-16 17:32:44,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:32:44,710 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.0) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 87 [2023-12-16 17:32:44,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:44,716 INFO L225 Difference]: With dead ends: 587 [2023-12-16 17:32:44,716 INFO L226 Difference]: Without dead ends: 298 [2023-12-16 17:32:44,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:32:44,718 INFO L413 NwaCegarLoop]: 431 mSDtfsCounter, 8 mSDsluCounter, 1282 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1713 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:32:44,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1713 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:32:44,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2023-12-16 17:32:44,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2023-12-16 17:32:44,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 230 states have (on average 1.5739130434782609) internal successors, (362), 232 states have internal predecessors, (362), 48 states have call successors, (48), 18 states have call predecessors, (48), 19 states have return successors, (49), 47 states have call predecessors, (49), 47 states have call successors, (49) [2023-12-16 17:32:44,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 459 transitions. [2023-12-16 17:32:44,732 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 459 transitions. Word has length 87 [2023-12-16 17:32:44,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:44,733 INFO L495 AbstractCegarLoop]: Abstraction has 298 states and 459 transitions. [2023-12-16 17:32:44,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.0) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-16 17:32:44,733 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 459 transitions. [2023-12-16 17:32:44,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-16 17:32:44,735 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:44,735 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:32:44,743 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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)] Forceful destruction successful, exit code 0 [2023-12-16 17:32:44,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:32:44,941 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:44,941 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:44,942 INFO L85 PathProgramCache]: Analyzing trace with hash 93406322, now seen corresponding path program 1 times [2023-12-16 17:32:44,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:44,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1478560594] [2023-12-16 17:32:44,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:32:44,942 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:32:44,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:44,947 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:32:44,949 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 17:32:45,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:32:45,156 INFO L262 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:32:45,159 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:45,181 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-16 17:32:45,182 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:32:45,182 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:45,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1478560594] [2023-12-16 17:32:45,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1478560594] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:32:45,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:32:45,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:32:45,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147150352] [2023-12-16 17:32:45,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:32:45,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:32:45,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:45,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:32:45,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:32:45,184 INFO L87 Difference]: Start difference. First operand 298 states and 459 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-16 17:32:45,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:45,286 INFO L93 Difference]: Finished difference Result 589 states and 910 transitions. [2023-12-16 17:32:45,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:32:45,286 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 88 [2023-12-16 17:32:45,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:45,288 INFO L225 Difference]: With dead ends: 589 [2023-12-16 17:32:45,289 INFO L226 Difference]: Without dead ends: 300 [2023-12-16 17:32:45,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:32:45,290 INFO L413 NwaCegarLoop]: 429 mSDtfsCounter, 8 mSDsluCounter, 1270 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1699 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:32:45,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1699 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:32:45,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2023-12-16 17:32:45,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 300. [2023-12-16 17:32:45,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 231 states have (on average 1.5714285714285714) internal successors, (363), 234 states have internal predecessors, (363), 48 states have call successors, (48), 18 states have call predecessors, (48), 20 states have return successors, (53), 47 states have call predecessors, (53), 47 states have call successors, (53) [2023-12-16 17:32:45,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 464 transitions. [2023-12-16 17:32:45,304 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 464 transitions. Word has length 88 [2023-12-16 17:32:45,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:45,304 INFO L495 AbstractCegarLoop]: Abstraction has 300 states and 464 transitions. [2023-12-16 17:32:45,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-16 17:32:45,304 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 464 transitions. [2023-12-16 17:32:45,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-16 17:32:45,306 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:45,306 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:32:45,312 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2023-12-16 17:32:45,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:32:45,517 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:45,518 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:45,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1325113966, now seen corresponding path program 1 times [2023-12-16 17:32:45,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:45,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1031410908] [2023-12-16 17:32:45,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:32:45,519 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:32:45,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:45,520 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:32:45,522 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2023-12-16 17:32:45,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:32:45,714 INFO L262 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 17:32:45,717 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:45,740 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-16 17:32:45,741 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:32:45,741 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:45,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1031410908] [2023-12-16 17:32:45,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1031410908] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:32:45,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:32:45,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:32:45,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906448291] [2023-12-16 17:32:45,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:32:45,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:32:45,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:45,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:32:45,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:32:45,743 INFO L87 Difference]: Start difference. First operand 300 states and 464 transitions. Second operand has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-16 17:32:45,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:45,837 INFO L93 Difference]: Finished difference Result 581 states and 900 transitions. [2023-12-16 17:32:45,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:32:45,837 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 89 [2023-12-16 17:32:45,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:45,839 INFO L225 Difference]: With dead ends: 581 [2023-12-16 17:32:45,839 INFO L226 Difference]: Without dead ends: 300 [2023-12-16 17:32:45,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:32:45,841 INFO L413 NwaCegarLoop]: 431 mSDtfsCounter, 8 mSDsluCounter, 1282 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1713 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:32:45,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1713 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:32:45,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2023-12-16 17:32:45,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 300. [2023-12-16 17:32:45,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 231 states have (on average 1.5714285714285714) internal successors, (363), 234 states have internal predecessors, (363), 48 states have call successors, (48), 18 states have call predecessors, (48), 20 states have return successors, (52), 47 states have call predecessors, (52), 47 states have call successors, (52) [2023-12-16 17:32:45,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 463 transitions. [2023-12-16 17:32:45,853 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 463 transitions. Word has length 89 [2023-12-16 17:32:45,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:45,854 INFO L495 AbstractCegarLoop]: Abstraction has 300 states and 463 transitions. [2023-12-16 17:32:45,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-16 17:32:45,854 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 463 transitions. [2023-12-16 17:32:45,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-16 17:32:45,855 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:45,855 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:32:45,862 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2023-12-16 17:32:46,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:32:46,062 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:46,062 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:46,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1724885016, now seen corresponding path program 2 times [2023-12-16 17:32:46,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:46,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2088213502] [2023-12-16 17:32:46,064 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 17:32:46,064 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:32:46,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:46,066 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:32:46,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2023-12-16 17:32:46,207 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-16 17:32:46,207 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 17:32:46,211 INFO L262 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 17:32:46,221 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:46,317 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-16 17:32:46,317 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:32:46,317 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:46,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2088213502] [2023-12-16 17:32:46,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2088213502] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:32:46,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:32:46,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 17:32:46,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106596721] [2023-12-16 17:32:46,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:32:46,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:32:46,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:46,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:32:46,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:32:46,319 INFO L87 Difference]: Start difference. First operand 300 states and 463 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 17:32:46,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:46,694 INFO L93 Difference]: Finished difference Result 584 states and 904 transitions. [2023-12-16 17:32:46,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 17:32:46,694 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 90 [2023-12-16 17:32:46,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:46,697 INFO L225 Difference]: With dead ends: 584 [2023-12-16 17:32:46,698 INFO L226 Difference]: Without dead ends: 582 [2023-12-16 17:32:46,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-12-16 17:32:46,699 INFO L413 NwaCegarLoop]: 440 mSDtfsCounter, 397 mSDsluCounter, 2406 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 2846 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 17:32:46,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 2846 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 17:32:46,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2023-12-16 17:32:46,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 579. [2023-12-16 17:32:46,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 450 states have (on average 1.58) internal successors, (711), 453 states have internal predecessors, (711), 90 states have call successors, (90), 35 states have call predecessors, (90), 38 states have return successors, (99), 90 states have call predecessors, (99), 88 states have call successors, (99) [2023-12-16 17:32:46,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 900 transitions. [2023-12-16 17:32:46,720 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 900 transitions. Word has length 90 [2023-12-16 17:32:46,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:46,721 INFO L495 AbstractCegarLoop]: Abstraction has 579 states and 900 transitions. [2023-12-16 17:32:46,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 17:32:46,721 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 900 transitions. [2023-12-16 17:32:46,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 17:32:46,723 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:46,723 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:32:46,730 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-12-16 17:32:46,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:32:46,931 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:46,931 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:46,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1691059951, now seen corresponding path program 1 times [2023-12-16 17:32:46,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:46,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [981968003] [2023-12-16 17:32:46,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:32:46,932 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:32:46,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:46,933 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:32:46,968 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (7)] Waiting until timeout for monitored process [2023-12-16 17:32:47,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:32:47,112 INFO L262 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 17:32:47,115 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:47,135 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-16 17:32:47,136 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:32:47,136 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:47,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [981968003] [2023-12-16 17:32:47,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [981968003] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:32:47,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:32:47,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:32:47,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48052605] [2023-12-16 17:32:47,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:32:47,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:32:47,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:47,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:32:47,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:32:47,137 INFO L87 Difference]: Start difference. First operand 579 states and 900 transitions. Second operand has 5 states, 4 states have (on average 14.0) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-16 17:32:47,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:47,267 INFO L93 Difference]: Finished difference Result 1141 states and 1777 transitions. [2023-12-16 17:32:47,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:32:47,267 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.0) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 91 [2023-12-16 17:32:47,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:47,270 INFO L225 Difference]: With dead ends: 1141 [2023-12-16 17:32:47,270 INFO L226 Difference]: Without dead ends: 581 [2023-12-16 17:32:47,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:32:47,272 INFO L413 NwaCegarLoop]: 432 mSDtfsCounter, 6 mSDsluCounter, 1283 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1715 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:32:47,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1715 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:32:47,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2023-12-16 17:32:47,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 581. [2023-12-16 17:32:47,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 451 states have (on average 1.5787139689578713) internal successors, (712), 455 states have internal predecessors, (712), 90 states have call successors, (90), 35 states have call predecessors, (90), 39 states have return successors, (101), 90 states have call predecessors, (101), 88 states have call successors, (101) [2023-12-16 17:32:47,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 903 transitions. [2023-12-16 17:32:47,289 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 903 transitions. Word has length 91 [2023-12-16 17:32:47,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:47,290 INFO L495 AbstractCegarLoop]: Abstraction has 581 states and 903 transitions. [2023-12-16 17:32:47,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.0) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-16 17:32:47,290 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 903 transitions. [2023-12-16 17:32:47,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-16 17:32:47,291 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:47,291 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:32:47,312 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (7)] Forceful destruction successful, exit code 0 [2023-12-16 17:32:47,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:32:47,497 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:47,498 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:47,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1180577474, now seen corresponding path program 1 times [2023-12-16 17:32:47,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:47,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [939921343] [2023-12-16 17:32:47,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:32:47,498 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:32:47,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:47,500 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:32:47,534 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-16 17:32:47,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:32:47,693 INFO L262 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:32:47,696 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:47,716 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-16 17:32:47,717 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:32:47,717 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:47,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [939921343] [2023-12-16 17:32:47,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [939921343] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:32:47,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:32:47,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:32:47,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982486546] [2023-12-16 17:32:47,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:32:47,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:32:47,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:47,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:32:47,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:32:47,729 INFO L87 Difference]: Start difference. First operand 581 states and 903 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-16 17:32:47,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:47,859 INFO L93 Difference]: Finished difference Result 859 states and 1334 transitions. [2023-12-16 17:32:47,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:32:47,860 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 92 [2023-12-16 17:32:47,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:47,862 INFO L225 Difference]: With dead ends: 859 [2023-12-16 17:32:47,862 INFO L226 Difference]: Without dead ends: 302 [2023-12-16 17:32:47,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:32:47,863 INFO L413 NwaCegarLoop]: 429 mSDtfsCounter, 8 mSDsluCounter, 1271 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1700 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:32:47,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1700 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:32:47,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2023-12-16 17:32:47,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 302. [2023-12-16 17:32:47,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 232 states have (on average 1.5689655172413792) internal successors, (364), 236 states have internal predecessors, (364), 48 states have call successors, (48), 18 states have call predecessors, (48), 21 states have return successors, (53), 47 states have call predecessors, (53), 47 states have call successors, (53) [2023-12-16 17:32:47,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 465 transitions. [2023-12-16 17:32:47,904 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 465 transitions. Word has length 92 [2023-12-16 17:32:47,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:47,904 INFO L495 AbstractCegarLoop]: Abstraction has 302 states and 465 transitions. [2023-12-16 17:32:47,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-16 17:32:47,904 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 465 transitions. [2023-12-16 17:32:47,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-16 17:32:47,905 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:47,905 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:32:47,914 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-16 17:32:48,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:32:48,112 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:48,113 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:48,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1379350551, now seen corresponding path program 1 times [2023-12-16 17:32:48,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:48,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1098569242] [2023-12-16 17:32:48,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:32:48,113 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:32:48,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:48,115 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:32:48,119 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (9)] Waiting until timeout for monitored process [2023-12-16 17:32:48,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:32:48,314 INFO L262 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:32:48,317 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:48,341 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-16 17:32:48,341 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:32:48,341 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:48,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1098569242] [2023-12-16 17:32:48,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1098569242] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:32:48,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:32:48,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:32:48,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996467493] [2023-12-16 17:32:48,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:32:48,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:32:48,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:48,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:32:48,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:32:48,343 INFO L87 Difference]: Start difference. First operand 302 states and 465 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-16 17:32:48,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:48,449 INFO L93 Difference]: Finished difference Result 583 states and 903 transitions. [2023-12-16 17:32:48,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:32:48,449 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 92 [2023-12-16 17:32:48,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:48,451 INFO L225 Difference]: With dead ends: 583 [2023-12-16 17:32:48,451 INFO L226 Difference]: Without dead ends: 304 [2023-12-16 17:32:48,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:32:48,452 INFO L413 NwaCegarLoop]: 430 mSDtfsCounter, 6 mSDsluCounter, 1272 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1702 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:32:48,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1702 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:32:48,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2023-12-16 17:32:48,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2023-12-16 17:32:48,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 233 states have (on average 1.5665236051502145) internal successors, (365), 238 states have internal predecessors, (365), 48 states have call successors, (48), 18 states have call predecessors, (48), 22 states have return successors, (57), 47 states have call predecessors, (57), 47 states have call successors, (57) [2023-12-16 17:32:48,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 470 transitions. [2023-12-16 17:32:48,461 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 470 transitions. Word has length 92 [2023-12-16 17:32:48,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:48,461 INFO L495 AbstractCegarLoop]: Abstraction has 304 states and 470 transitions. [2023-12-16 17:32:48,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-16 17:32:48,462 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 470 transitions. [2023-12-16 17:32:48,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-16 17:32:48,463 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:48,463 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:32:48,469 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (9)] Forceful destruction successful, exit code 0 [2023-12-16 17:32:48,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:32:48,669 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:48,670 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:48,670 INFO L85 PathProgramCache]: Analyzing trace with hash -787996772, now seen corresponding path program 1 times [2023-12-16 17:32:48,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:48,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [948240986] [2023-12-16 17:32:48,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:32:48,670 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:32:48,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:48,671 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:32:48,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-16 17:32:48,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:32:48,857 INFO L262 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:32:48,860 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:48,868 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-16 17:32:48,868 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:32:48,868 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:48,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [948240986] [2023-12-16 17:32:48,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [948240986] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:32:48,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:32:48,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:32:48,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220240806] [2023-12-16 17:32:48,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:32:48,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:32:48,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:48,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:32:48,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:48,869 INFO L87 Difference]: Start difference. First operand 304 states and 470 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 17:32:48,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:48,906 INFO L93 Difference]: Finished difference Result 453 states and 685 transitions. [2023-12-16 17:32:48,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:32:48,907 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 93 [2023-12-16 17:32:48,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:48,908 INFO L225 Difference]: With dead ends: 453 [2023-12-16 17:32:48,908 INFO L226 Difference]: Without dead ends: 306 [2023-12-16 17:32:48,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:48,909 INFO L413 NwaCegarLoop]: 440 mSDtfsCounter, 0 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 879 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:32:48,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 879 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:32:48,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2023-12-16 17:32:48,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 306. [2023-12-16 17:32:48,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 235 states have (on average 1.5617021276595744) internal successors, (367), 240 states have internal predecessors, (367), 48 states have call successors, (48), 18 states have call predecessors, (48), 22 states have return successors, (57), 47 states have call predecessors, (57), 47 states have call successors, (57) [2023-12-16 17:32:48,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 472 transitions. [2023-12-16 17:32:48,917 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 472 transitions. Word has length 93 [2023-12-16 17:32:48,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:48,917 INFO L495 AbstractCegarLoop]: Abstraction has 306 states and 472 transitions. [2023-12-16 17:32:48,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 17:32:48,918 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 472 transitions. [2023-12-16 17:32:48,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-16 17:32:48,919 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:48,919 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:32:48,924 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-16 17:32:49,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:32:49,125 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:49,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:49,128 INFO L85 PathProgramCache]: Analyzing trace with hash 2137427515, now seen corresponding path program 1 times [2023-12-16 17:32:49,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:49,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [840955189] [2023-12-16 17:32:49,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:32:49,129 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:32:49,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:49,130 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:32:49,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-16 17:32:49,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:32:49,341 INFO L262 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:32:49,343 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:49,361 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-16 17:32:49,361 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:32:49,361 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:49,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [840955189] [2023-12-16 17:32:49,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [840955189] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:32:49,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:32:49,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:32:49,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588789475] [2023-12-16 17:32:49,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:32:49,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:32:49,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:49,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:32:49,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:49,363 INFO L87 Difference]: Start difference. First operand 306 states and 472 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 17:32:49,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:49,409 INFO L93 Difference]: Finished difference Result 642 states and 1004 transitions. [2023-12-16 17:32:49,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:32:49,410 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 100 [2023-12-16 17:32:49,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:49,411 INFO L225 Difference]: With dead ends: 642 [2023-12-16 17:32:49,411 INFO L226 Difference]: Without dead ends: 362 [2023-12-16 17:32:49,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:49,413 INFO L413 NwaCegarLoop]: 458 mSDtfsCounter, 109 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:32:49,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 854 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:32:49,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2023-12-16 17:32:49,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 357. [2023-12-16 17:32:49,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 275 states have (on average 1.5781818181818181) internal successors, (434), 280 states have internal predecessors, (434), 59 states have call successors, (59), 18 states have call predecessors, (59), 22 states have return successors, (70), 58 states have call predecessors, (70), 58 states have call successors, (70) [2023-12-16 17:32:49,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 563 transitions. [2023-12-16 17:32:49,422 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 563 transitions. Word has length 100 [2023-12-16 17:32:49,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:49,423 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 563 transitions. [2023-12-16 17:32:49,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 17:32:49,423 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 563 transitions. [2023-12-16 17:32:49,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 17:32:49,424 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:49,424 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:32:49,432 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-16 17:32:49,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:32:49,630 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:49,631 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:49,631 INFO L85 PathProgramCache]: Analyzing trace with hash 985672957, now seen corresponding path program 1 times [2023-12-16 17:32:49,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:49,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [248832485] [2023-12-16 17:32:49,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:32:49,631 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:32:49,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:49,632 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:32:49,634 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-16 17:32:49,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:32:49,818 INFO L262 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:32:49,821 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:49,868 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-16 17:32:49,869 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:32:49,869 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:49,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [248832485] [2023-12-16 17:32:49,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [248832485] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:32:49,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:32:49,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:32:49,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798379500] [2023-12-16 17:32:49,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:32:49,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:32:49,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:49,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:32:49,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:32:49,870 INFO L87 Difference]: Start difference. First operand 357 states and 563 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-16 17:32:49,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:49,964 INFO L93 Difference]: Finished difference Result 706 states and 1104 transitions. [2023-12-16 17:32:49,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:32:49,965 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 101 [2023-12-16 17:32:49,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:49,967 INFO L225 Difference]: With dead ends: 706 [2023-12-16 17:32:49,967 INFO L226 Difference]: Without dead ends: 373 [2023-12-16 17:32:49,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:32:49,968 INFO L413 NwaCegarLoop]: 442 mSDtfsCounter, 417 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 900 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:32:49,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [417 Valid, 900 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:32:49,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2023-12-16 17:32:49,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 365. [2023-12-16 17:32:49,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 282 states have (on average 1.5602836879432624) internal successors, (440), 286 states have internal predecessors, (440), 59 states have call successors, (59), 20 states have call predecessors, (59), 23 states have return successors, (66), 58 states have call predecessors, (66), 58 states have call successors, (66) [2023-12-16 17:32:49,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 565 transitions. [2023-12-16 17:32:49,982 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 565 transitions. Word has length 101 [2023-12-16 17:32:49,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:49,982 INFO L495 AbstractCegarLoop]: Abstraction has 365 states and 565 transitions. [2023-12-16 17:32:49,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-16 17:32:49,982 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 565 transitions. [2023-12-16 17:32:49,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-16 17:32:49,983 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:49,983 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:32:49,988 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-16 17:32:50,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:32:50,190 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:50,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:50,190 INFO L85 PathProgramCache]: Analyzing trace with hash 417715876, now seen corresponding path program 1 times [2023-12-16 17:32:50,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:50,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [687972599] [2023-12-16 17:32:50,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:32:50,191 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:32:50,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:50,192 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:32:50,194 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (13)] Waiting until timeout for monitored process [2023-12-16 17:32:50,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:32:50,376 INFO L262 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:32:50,378 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:50,397 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-16 17:32:50,397 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:32:50,445 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-16 17:32:50,446 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:50,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [687972599] [2023-12-16 17:32:50,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [687972599] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:32:50,446 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:32:50,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-16 17:32:50,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090802863] [2023-12-16 17:32:50,446 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:32:50,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 17:32:50,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:50,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 17:32:50,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:32:50,447 INFO L87 Difference]: Start difference. First operand 365 states and 565 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 17:32:50,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:50,662 INFO L93 Difference]: Finished difference Result 857 states and 1379 transitions. [2023-12-16 17:32:50,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:32:50,662 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 102 [2023-12-16 17:32:50,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:50,665 INFO L225 Difference]: With dead ends: 857 [2023-12-16 17:32:50,665 INFO L226 Difference]: Without dead ends: 710 [2023-12-16 17:32:50,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:32:50,666 INFO L413 NwaCegarLoop]: 465 mSDtfsCounter, 397 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 1973 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:32:50,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 1973 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:32:50,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2023-12-16 17:32:50,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 695. [2023-12-16 17:32:50,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 695 states, 548 states have (on average 1.6058394160583942) internal successors, (880), 552 states have internal predecessors, (880), 123 states have call successors, (123), 20 states have call predecessors, (123), 23 states have return successors, (140), 122 states have call predecessors, (140), 122 states have call successors, (140) [2023-12-16 17:32:50,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 1143 transitions. [2023-12-16 17:32:50,691 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 1143 transitions. Word has length 102 [2023-12-16 17:32:50,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:50,692 INFO L495 AbstractCegarLoop]: Abstraction has 695 states and 1143 transitions. [2023-12-16 17:32:50,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 17:32:50,692 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 1143 transitions. [2023-12-16 17:32:50,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-16 17:32:50,694 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:50,694 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:32:50,699 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (13)] Ended with exit code 0 [2023-12-16 17:32:50,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:32:50,899 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:50,899 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:50,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1506499152, now seen corresponding path program 1 times [2023-12-16 17:32:50,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:50,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [745449076] [2023-12-16 17:32:50,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:32:50,900 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:32:50,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:50,901 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:32:50,902 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-16 17:32:51,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:32:51,077 INFO L262 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:32:51,079 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:51,089 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-16 17:32:51,089 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:32:51,089 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:51,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [745449076] [2023-12-16 17:32:51,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [745449076] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:32:51,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:32:51,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:32:51,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162166004] [2023-12-16 17:32:51,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:32:51,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:32:51,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:51,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:32:51,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:51,090 INFO L87 Difference]: Start difference. First operand 695 states and 1143 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 17:32:51,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:51,151 INFO L93 Difference]: Finished difference Result 1631 states and 2734 transitions. [2023-12-16 17:32:51,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:32:51,152 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 105 [2023-12-16 17:32:51,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:51,156 INFO L225 Difference]: With dead ends: 1631 [2023-12-16 17:32:51,156 INFO L226 Difference]: Without dead ends: 1012 [2023-12-16 17:32:51,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:51,159 INFO L413 NwaCegarLoop]: 451 mSDtfsCounter, 103 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 884 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:32:51,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 884 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:32:51,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1012 states. [2023-12-16 17:32:51,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1012 to 1007. [2023-12-16 17:32:51,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1007 states, 796 states have (on average 1.6231155778894473) internal successors, (1292), 800 states have internal predecessors, (1292), 187 states have call successors, (187), 20 states have call predecessors, (187), 23 states have return successors, (214), 186 states have call predecessors, (214), 186 states have call successors, (214) [2023-12-16 17:32:51,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1007 states to 1007 states and 1693 transitions. [2023-12-16 17:32:51,207 INFO L78 Accepts]: Start accepts. Automaton has 1007 states and 1693 transitions. Word has length 105 [2023-12-16 17:32:51,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:51,208 INFO L495 AbstractCegarLoop]: Abstraction has 1007 states and 1693 transitions. [2023-12-16 17:32:51,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 17:32:51,208 INFO L276 IsEmpty]: Start isEmpty. Operand 1007 states and 1693 transitions. [2023-12-16 17:32:51,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-16 17:32:51,212 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:51,212 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:32:51,220 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-16 17:32:51,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:32:51,421 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:51,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:51,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1039686097, now seen corresponding path program 1 times [2023-12-16 17:32:51,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:51,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1530479713] [2023-12-16 17:32:51,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:32:51,422 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:32:51,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:51,493 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:32:51,494 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (15)] Waiting until timeout for monitored process [2023-12-16 17:32:51,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:32:51,714 INFO L262 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:32:51,717 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:51,728 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-16 17:32:51,729 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:32:51,729 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:51,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1530479713] [2023-12-16 17:32:51,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1530479713] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:32:51,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:32:51,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:32:51,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448020206] [2023-12-16 17:32:51,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:32:51,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:32:51,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:51,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:32:51,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:51,730 INFO L87 Difference]: Start difference. First operand 1007 states and 1693 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 17:32:51,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:51,805 INFO L93 Difference]: Finished difference Result 2395 states and 4051 transitions. [2023-12-16 17:32:51,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:32:51,805 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 106 [2023-12-16 17:32:51,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:51,811 INFO L225 Difference]: With dead ends: 2395 [2023-12-16 17:32:51,811 INFO L226 Difference]: Without dead ends: 1514 [2023-12-16 17:32:51,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:51,814 INFO L413 NwaCegarLoop]: 437 mSDtfsCounter, 101 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 867 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:32:51,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 867 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:32:51,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1514 states. [2023-12-16 17:32:51,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1514 to 1509. [2023-12-16 17:32:51,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1509 states, 1203 states have (on average 1.626766417290108) internal successors, (1957), 1207 states have internal predecessors, (1957), 282 states have call successors, (282), 20 states have call predecessors, (282), 23 states have return successors, (309), 281 states have call predecessors, (309), 281 states have call successors, (309) [2023-12-16 17:32:51,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1509 states to 1509 states and 2548 transitions. [2023-12-16 17:32:51,874 INFO L78 Accepts]: Start accepts. Automaton has 1509 states and 2548 transitions. Word has length 106 [2023-12-16 17:32:51,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:51,874 INFO L495 AbstractCegarLoop]: Abstraction has 1509 states and 2548 transitions. [2023-12-16 17:32:51,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 17:32:51,874 INFO L276 IsEmpty]: Start isEmpty. Operand 1509 states and 2548 transitions. [2023-12-16 17:32:51,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-16 17:32:51,880 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:51,880 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:32:51,898 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (15)] Forceful destruction successful, exit code 0 [2023-12-16 17:32:52,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:32:52,087 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:52,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:52,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1287854142, now seen corresponding path program 1 times [2023-12-16 17:32:52,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:52,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [145686779] [2023-12-16 17:32:52,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:32:52,087 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:32:52,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:52,088 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:32:52,090 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (16)] Waiting until timeout for monitored process [2023-12-16 17:32:52,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:32:52,288 INFO L262 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:32:52,290 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:52,302 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-16 17:32:52,303 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:32:52,303 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:52,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [145686779] [2023-12-16 17:32:52,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [145686779] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:32:52,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:32:52,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:32:52,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866944072] [2023-12-16 17:32:52,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:32:52,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:32:52,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:52,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:32:52,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:52,304 INFO L87 Difference]: Start difference. First operand 1509 states and 2548 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 17:32:52,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:52,400 INFO L93 Difference]: Finished difference Result 3530 states and 6009 transitions. [2023-12-16 17:32:52,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:32:52,401 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 107 [2023-12-16 17:32:52,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:52,410 INFO L225 Difference]: With dead ends: 3530 [2023-12-16 17:32:52,410 INFO L226 Difference]: Without dead ends: 2273 [2023-12-16 17:32:52,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:52,416 INFO L413 NwaCegarLoop]: 435 mSDtfsCounter, 99 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 862 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:32:52,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 862 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:32:52,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2273 states. [2023-12-16 17:32:52,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2273 to 2268. [2023-12-16 17:32:52,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2268 states, 1839 states have (on average 1.6302338227297444) internal successors, (2998), 1843 states have internal predecessors, (2998), 405 states have call successors, (405), 20 states have call predecessors, (405), 23 states have return successors, (448), 404 states have call predecessors, (448), 404 states have call successors, (448) [2023-12-16 17:32:52,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2268 states to 2268 states and 3851 transitions. [2023-12-16 17:32:52,545 INFO L78 Accepts]: Start accepts. Automaton has 2268 states and 3851 transitions. Word has length 107 [2023-12-16 17:32:52,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:52,546 INFO L495 AbstractCegarLoop]: Abstraction has 2268 states and 3851 transitions. [2023-12-16 17:32:52,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 17:32:52,546 INFO L276 IsEmpty]: Start isEmpty. Operand 2268 states and 3851 transitions. [2023-12-16 17:32:52,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-16 17:32:52,554 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:52,554 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:32:52,562 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (16)] Ended with exit code 0 [2023-12-16 17:32:52,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:32:52,760 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:52,760 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:52,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1093390034, now seen corresponding path program 1 times [2023-12-16 17:32:52,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:52,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [322811266] [2023-12-16 17:32:52,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:32:52,761 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:32:52,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:52,762 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:32:52,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (17)] Waiting until timeout for monitored process [2023-12-16 17:32:52,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:32:52,987 INFO L262 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:32:52,990 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:53,004 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-16 17:32:53,005 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:32:53,005 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:53,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [322811266] [2023-12-16 17:32:53,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [322811266] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:32:53,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:32:53,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:32:53,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007798322] [2023-12-16 17:32:53,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:32:53,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:32:53,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:53,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:32:53,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:53,006 INFO L87 Difference]: Start difference. First operand 2268 states and 3851 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 17:32:53,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:53,131 INFO L93 Difference]: Finished difference Result 5294 states and 9056 transitions. [2023-12-16 17:32:53,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:32:53,132 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 108 [2023-12-16 17:32:53,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:53,147 INFO L225 Difference]: With dead ends: 5294 [2023-12-16 17:32:53,147 INFO L226 Difference]: Without dead ends: 3484 [2023-12-16 17:32:53,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:53,154 INFO L413 NwaCegarLoop]: 435 mSDtfsCounter, 97 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 862 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:32:53,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 862 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:32:53,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3484 states. [2023-12-16 17:32:53,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3484 to 3479. [2023-12-16 17:32:53,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3479 states, 2871 states have (on average 1.6325322187391154) internal successors, (4687), 2875 states have internal predecessors, (4687), 584 states have call successors, (584), 20 states have call predecessors, (584), 23 states have return successors, (653), 583 states have call predecessors, (653), 583 states have call successors, (653) [2023-12-16 17:32:53,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3479 states to 3479 states and 5924 transitions. [2023-12-16 17:32:53,335 INFO L78 Accepts]: Start accepts. Automaton has 3479 states and 5924 transitions. Word has length 108 [2023-12-16 17:32:53,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:53,335 INFO L495 AbstractCegarLoop]: Abstraction has 3479 states and 5924 transitions. [2023-12-16 17:32:53,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 17:32:53,335 INFO L276 IsEmpty]: Start isEmpty. Operand 3479 states and 5924 transitions. [2023-12-16 17:32:53,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-16 17:32:53,344 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:53,344 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:32:53,350 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (17)] Forceful destruction successful, exit code 0 [2023-12-16 17:32:53,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:32:53,549 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:53,550 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:53,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1110553638, now seen corresponding path program 1 times [2023-12-16 17:32:53,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:53,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [58546624] [2023-12-16 17:32:53,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:32:53,551 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:32:53,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:53,561 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:32:53,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (18)] Waiting until timeout for monitored process [2023-12-16 17:32:53,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:32:53,778 INFO L262 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:32:53,781 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:53,805 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-16 17:32:53,805 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:32:53,805 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:53,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [58546624] [2023-12-16 17:32:53,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [58546624] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:32:53,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:32:53,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:32:53,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848615306] [2023-12-16 17:32:53,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:32:53,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:32:53,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:53,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:32:53,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:53,807 INFO L87 Difference]: Start difference. First operand 3479 states and 5924 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 17:32:53,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:53,982 INFO L93 Difference]: Finished difference Result 8242 states and 14103 transitions. [2023-12-16 17:32:53,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:32:53,982 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 109 [2023-12-16 17:32:53,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:54,006 INFO L225 Difference]: With dead ends: 8242 [2023-12-16 17:32:54,006 INFO L226 Difference]: Without dead ends: 5520 [2023-12-16 17:32:54,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:54,017 INFO L413 NwaCegarLoop]: 447 mSDtfsCounter, 95 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 875 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:32:54,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 875 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:32:54,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5520 states. [2023-12-16 17:32:54,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5520 to 5515. [2023-12-16 17:32:54,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5515 states, 4531 states have (on average 1.6208342529242992) internal successors, (7344), 4535 states have internal predecessors, (7344), 960 states have call successors, (960), 20 states have call predecessors, (960), 23 states have return successors, (1073), 959 states have call predecessors, (1073), 959 states have call successors, (1073) [2023-12-16 17:32:54,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5515 states to 5515 states and 9377 transitions. [2023-12-16 17:32:54,331 INFO L78 Accepts]: Start accepts. Automaton has 5515 states and 9377 transitions. Word has length 109 [2023-12-16 17:32:54,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:54,331 INFO L495 AbstractCegarLoop]: Abstraction has 5515 states and 9377 transitions. [2023-12-16 17:32:54,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 17:32:54,331 INFO L276 IsEmpty]: Start isEmpty. Operand 5515 states and 9377 transitions. [2023-12-16 17:32:54,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-16 17:32:54,342 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:54,342 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:32:54,360 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (18)] Forceful destruction successful, exit code 0 [2023-12-16 17:32:54,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:32:54,547 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:54,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:54,548 INFO L85 PathProgramCache]: Analyzing trace with hash 656964406, now seen corresponding path program 1 times [2023-12-16 17:32:54,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:54,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [82537253] [2023-12-16 17:32:54,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:32:54,549 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:32:54,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:54,550 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:32:54,598 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (19)] Waiting until timeout for monitored process [2023-12-16 17:32:54,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:32:54,744 INFO L262 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:32:54,747 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:54,767 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-16 17:32:54,767 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:32:54,767 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:54,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [82537253] [2023-12-16 17:32:54,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [82537253] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:32:54,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:32:54,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:32:54,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790963230] [2023-12-16 17:32:54,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:32:54,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:32:54,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:54,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:32:54,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:54,770 INFO L87 Difference]: Start difference. First operand 5515 states and 9377 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 17:32:55,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:55,058 INFO L93 Difference]: Finished difference Result 13547 states and 23181 transitions. [2023-12-16 17:32:55,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:32:55,059 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 110 [2023-12-16 17:32:55,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:55,103 INFO L225 Difference]: With dead ends: 13547 [2023-12-16 17:32:55,103 INFO L226 Difference]: Without dead ends: 9170 [2023-12-16 17:32:55,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:55,117 INFO L413 NwaCegarLoop]: 437 mSDtfsCounter, 93 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 867 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:32:55,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 867 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:32:55,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9170 states. [2023-12-16 17:32:55,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9170 to 9165. [2023-12-16 17:32:55,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9165 states, 7575 states have (on average 1.618085808580858) internal successors, (12257), 7579 states have internal predecessors, (12257), 1566 states have call successors, (1566), 20 states have call predecessors, (1566), 23 states have return successors, (1757), 1565 states have call predecessors, (1757), 1565 states have call successors, (1757) [2023-12-16 17:32:55,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9165 states to 9165 states and 15580 transitions. [2023-12-16 17:32:55,501 INFO L78 Accepts]: Start accepts. Automaton has 9165 states and 15580 transitions. Word has length 110 [2023-12-16 17:32:55,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:55,501 INFO L495 AbstractCegarLoop]: Abstraction has 9165 states and 15580 transitions. [2023-12-16 17:32:55,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 17:32:55,501 INFO L276 IsEmpty]: Start isEmpty. Operand 9165 states and 15580 transitions. [2023-12-16 17:32:55,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-16 17:32:55,515 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:55,516 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:32:55,523 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (19)] Forceful destruction successful, exit code 0 [2023-12-16 17:32:55,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:32:55,721 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:55,722 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:55,722 INFO L85 PathProgramCache]: Analyzing trace with hash 388439080, now seen corresponding path program 1 times [2023-12-16 17:32:55,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:55,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [110667567] [2023-12-16 17:32:55,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:32:55,722 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:32:55,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:55,723 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:32:55,737 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (20)] Waiting until timeout for monitored process [2023-12-16 17:32:55,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:32:55,895 INFO L262 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:32:55,898 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:55,917 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-16 17:32:55,917 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:32:55,918 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:55,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [110667567] [2023-12-16 17:32:55,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [110667567] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:32:55,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:32:55,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:32:55,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008216949] [2023-12-16 17:32:55,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:32:55,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:32:55,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:55,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:32:55,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:55,919 INFO L87 Difference]: Start difference. First operand 9165 states and 15580 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 17:32:56,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:56,501 INFO L93 Difference]: Finished difference Result 23634 states and 40349 transitions. [2023-12-16 17:32:56,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:32:56,502 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 111 [2023-12-16 17:32:56,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:56,608 INFO L225 Difference]: With dead ends: 23634 [2023-12-16 17:32:56,608 INFO L226 Difference]: Without dead ends: 16058 [2023-12-16 17:32:56,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:56,641 INFO L413 NwaCegarLoop]: 443 mSDtfsCounter, 91 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 878 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:32:56,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 878 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:32:56,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16058 states. [2023-12-16 17:32:57,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16058 to 16053. [2023-12-16 17:32:57,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16053 states, 13260 states have (on average 1.608898944193062) internal successors, (21334), 13264 states have internal predecessors, (21334), 2769 states have call successors, (2769), 20 states have call predecessors, (2769), 23 states have return successors, (3104), 2768 states have call predecessors, (3104), 2768 states have call successors, (3104) [2023-12-16 17:32:57,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16053 states to 16053 states and 27207 transitions. [2023-12-16 17:32:57,257 INFO L78 Accepts]: Start accepts. Automaton has 16053 states and 27207 transitions. Word has length 111 [2023-12-16 17:32:57,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:57,257 INFO L495 AbstractCegarLoop]: Abstraction has 16053 states and 27207 transitions. [2023-12-16 17:32:57,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 17:32:57,257 INFO L276 IsEmpty]: Start isEmpty. Operand 16053 states and 27207 transitions. [2023-12-16 17:32:57,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-16 17:32:57,275 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:57,275 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:32:57,292 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (20)] Forceful destruction successful, exit code 0 [2023-12-16 17:32:57,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:32:57,480 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:57,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:57,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1362290345, now seen corresponding path program 1 times [2023-12-16 17:32:57,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:57,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [946843057] [2023-12-16 17:32:57,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:32:57,481 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:32:57,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:57,482 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:32:57,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (21)] Waiting until timeout for monitored process [2023-12-16 17:32:57,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:32:57,657 INFO L262 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:32:57,660 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:57,683 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-16 17:32:57,683 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:32:57,683 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:57,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [946843057] [2023-12-16 17:32:57,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [946843057] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:32:57,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:32:57,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:32:57,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383992010] [2023-12-16 17:32:57,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:32:57,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:32:57,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:57,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:32:57,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:57,684 INFO L87 Difference]: Start difference. First operand 16053 states and 27207 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 17:32:58,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:58,627 INFO L93 Difference]: Finished difference Result 42407 states and 72215 transitions. [2023-12-16 17:32:58,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:32:58,628 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 112 [2023-12-16 17:32:58,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:58,715 INFO L225 Difference]: With dead ends: 42407 [2023-12-16 17:32:58,716 INFO L226 Difference]: Without dead ends: 28584 [2023-12-16 17:32:58,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:58,748 INFO L413 NwaCegarLoop]: 435 mSDtfsCounter, 89 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 865 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:32:58,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 865 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:32:58,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28584 states. [2023-12-16 17:32:59,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28584 to 28579. [2023-12-16 17:32:59,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28579 states, 23747 states have (on average 1.6047921842759085) internal successors, (38109), 23751 states have internal predecessors, (38109), 4808 states have call successors, (4808), 20 states have call predecessors, (4808), 23 states have return successors, (5417), 4807 states have call predecessors, (5417), 4807 states have call successors, (5417) [2023-12-16 17:32:59,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28579 states to 28579 states and 48334 transitions. [2023-12-16 17:32:59,898 INFO L78 Accepts]: Start accepts. Automaton has 28579 states and 48334 transitions. Word has length 112 [2023-12-16 17:32:59,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:59,899 INFO L495 AbstractCegarLoop]: Abstraction has 28579 states and 48334 transitions. [2023-12-16 17:32:59,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 17:32:59,899 INFO L276 IsEmpty]: Start isEmpty. Operand 28579 states and 48334 transitions. [2023-12-16 17:32:59,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-16 17:32:59,923 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:59,923 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:32:59,933 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (21)] Forceful destruction successful, exit code 0 [2023-12-16 17:33:00,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:33:00,134 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:33:00,134 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:33:00,134 INFO L85 PathProgramCache]: Analyzing trace with hash 2122085098, now seen corresponding path program 1 times [2023-12-16 17:33:00,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:33:00,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [778849067] [2023-12-16 17:33:00,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:33:00,134 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:33:00,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:33:00,135 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:33:00,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (22)] Waiting until timeout for monitored process [2023-12-16 17:33:00,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:33:00,313 INFO L262 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:33:00,325 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:33:00,349 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-16 17:33:00,350 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:33:00,350 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:33:00,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [778849067] [2023-12-16 17:33:00,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [778849067] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:33:00,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:33:00,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:33:00,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238382737] [2023-12-16 17:33:00,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:33:00,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:33:00,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:33:00,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:33:00,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:33:00,351 INFO L87 Difference]: Start difference. First operand 28579 states and 48334 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 17:33:02,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:33:02,382 INFO L93 Difference]: Finished difference Result 77784 states and 132057 transitions. [2023-12-16 17:33:02,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:33:02,382 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 113 [2023-12-16 17:33:02,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:33:02,655 INFO L225 Difference]: With dead ends: 77784 [2023-12-16 17:33:02,656 INFO L226 Difference]: Without dead ends: 52206 [2023-12-16 17:33:02,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:33:02,702 INFO L413 NwaCegarLoop]: 437 mSDtfsCounter, 87 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 867 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:33:02,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 867 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:33:02,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52206 states. [2023-12-16 17:33:05,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52206 to 52201. [2023-12-16 17:33:05,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52201 states, 43654 states have (on average 1.599418151830302) internal successors, (69821), 43658 states have internal predecessors, (69821), 8523 states have call successors, (8523), 20 states have call predecessors, (8523), 23 states have return successors, (9664), 8522 states have call predecessors, (9664), 8522 states have call successors, (9664) [2023-12-16 17:33:05,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52201 states to 52201 states and 88008 transitions. [2023-12-16 17:33:05,704 INFO L78 Accepts]: Start accepts. Automaton has 52201 states and 88008 transitions. Word has length 113 [2023-12-16 17:33:05,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:33:05,704 INFO L495 AbstractCegarLoop]: Abstraction has 52201 states and 88008 transitions. [2023-12-16 17:33:05,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 17:33:05,705 INFO L276 IsEmpty]: Start isEmpty. Operand 52201 states and 88008 transitions. [2023-12-16 17:33:05,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-16 17:33:05,721 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:33:05,721 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:33:05,740 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (22)] Forceful destruction successful, exit code 0 [2023-12-16 17:33:05,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:33:05,927 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:33:05,927 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:33:05,927 INFO L85 PathProgramCache]: Analyzing trace with hash -449957353, now seen corresponding path program 1 times [2023-12-16 17:33:05,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:33:05,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1155048229] [2023-12-16 17:33:05,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:33:05,928 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:33:05,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:33:05,931 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:33:05,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (23)] Waiting until timeout for monitored process [2023-12-16 17:33:06,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:33:06,129 INFO L262 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:33:06,131 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:33:06,160 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-16 17:33:06,160 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:33:06,161 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:33:06,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1155048229] [2023-12-16 17:33:06,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1155048229] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:33:06,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:33:06,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:33:06,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861459123] [2023-12-16 17:33:06,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:33:06,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:33:06,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:33:06,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:33:06,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:33:06,162 INFO L87 Difference]: Start difference. First operand 52201 states and 88008 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 17:33:08,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:33:08,944 INFO L93 Difference]: Finished difference Result 97302 states and 164422 transitions. [2023-12-16 17:33:08,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:33:08,944 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 114 [2023-12-16 17:33:08,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:33:09,296 INFO L225 Difference]: With dead ends: 97302 [2023-12-16 17:33:09,296 INFO L226 Difference]: Without dead ends: 97155 [2023-12-16 17:33:09,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:33:09,335 INFO L413 NwaCegarLoop]: 435 mSDtfsCounter, 85 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 865 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:33:09,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 865 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:33:09,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97155 states. [2023-12-16 17:33:13,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97155 to 97150. [2023-12-16 17:33:13,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97150 states, 81804 states have (on average 1.5925993838932082) internal successors, (130281), 81808 states have internal predecessors, (130281), 15322 states have call successors, (15322), 20 states have call predecessors, (15322), 23 states have return successors, (17509), 15321 states have call predecessors, (17509), 15321 states have call successors, (17509) [2023-12-16 17:33:13,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97150 states to 97150 states and 163112 transitions. [2023-12-16 17:33:13,646 INFO L78 Accepts]: Start accepts. Automaton has 97150 states and 163112 transitions. Word has length 114 [2023-12-16 17:33:13,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:33:13,646 INFO L495 AbstractCegarLoop]: Abstraction has 97150 states and 163112 transitions. [2023-12-16 17:33:13,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 17:33:13,646 INFO L276 IsEmpty]: Start isEmpty. Operand 97150 states and 163112 transitions. [2023-12-16 17:33:14,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-16 17:33:14,009 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:33:14,009 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:33:14,017 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (23)] Forceful destruction successful, exit code 0 [2023-12-16 17:33:14,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:33:14,210 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:33:14,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:33:14,210 INFO L85 PathProgramCache]: Analyzing trace with hash 107072585, now seen corresponding path program 1 times [2023-12-16 17:33:14,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:33:14,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [512648391] [2023-12-16 17:33:14,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:33:14,211 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:33:14,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:33:14,221 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:33:14,254 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (24)] Waiting until timeout for monitored process [2023-12-16 17:33:14,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:33:14,400 INFO L262 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-16 17:33:14,403 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:33:14,529 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-16 17:33:14,529 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:33:14,751 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-16 17:33:14,751 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:33:14,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [512648391] [2023-12-16 17:33:14,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [512648391] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:33:14,751 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:33:14,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-12-16 17:33:14,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696932496] [2023-12-16 17:33:14,751 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:33:14,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-16 17:33:14,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:33:14,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-16 17:33:14,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2023-12-16 17:33:14,753 INFO L87 Difference]: Start difference. First operand 97150 states and 163112 transitions. Second operand has 16 states, 16 states have (on average 9.0625) internal successors, (145), 14 states have internal predecessors, (145), 4 states have call successors, (26), 6 states have call predecessors, (26), 9 states have return successors, (23), 6 states have call predecessors, (23), 4 states have call successors, (23) [2023-12-16 17:33:25,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:33:25,761 INFO L93 Difference]: Finished difference Result 285677 states and 486311 transitions. [2023-12-16 17:33:25,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-16 17:33:25,761 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 9.0625) internal successors, (145), 14 states have internal predecessors, (145), 4 states have call successors, (26), 6 states have call predecessors, (26), 9 states have return successors, (23), 6 states have call predecessors, (23), 4 states have call successors, (23) Word has length 115 [2023-12-16 17:33:25,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:33:27,340 INFO L225 Difference]: With dead ends: 285677 [2023-12-16 17:33:27,340 INFO L226 Difference]: Without dead ends: 285537 [2023-12-16 17:33:27,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=657, Unknown=0, NotChecked=0, Total=812 [2023-12-16 17:33:27,452 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 1851 mSDsluCounter, 2346 mSDsCounter, 0 mSdLazyCounter, 3969 mSolverCounterSat, 434 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1905 SdHoareTripleChecker+Valid, 2623 SdHoareTripleChecker+Invalid, 4403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 434 IncrementalHoareTripleChecker+Valid, 3969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-16 17:33:27,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1905 Valid, 2623 Invalid, 4403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [434 Valid, 3969 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-16 17:33:27,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285537 states. [2023-12-16 17:33:38,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285537 to 194293. [2023-12-16 17:33:38,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194293 states, 163603 states have (on average 1.5925991577171568) internal successors, (260554), 163610 states have internal predecessors, (260554), 30642 states have call successors, (30642), 39 states have call predecessors, (30642), 47 states have return successors, (39386), 30643 states have call predecessors, (39386), 30640 states have call successors, (39386) [2023-12-16 17:33:40,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194293 states to 194293 states and 330582 transitions. [2023-12-16 17:33:40,135 INFO L78 Accepts]: Start accepts. Automaton has 194293 states and 330582 transitions. Word has length 115 [2023-12-16 17:33:40,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:33:40,135 INFO L495 AbstractCegarLoop]: Abstraction has 194293 states and 330582 transitions. [2023-12-16 17:33:40,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 9.0625) internal successors, (145), 14 states have internal predecessors, (145), 4 states have call successors, (26), 6 states have call predecessors, (26), 9 states have return successors, (23), 6 states have call predecessors, (23), 4 states have call successors, (23) [2023-12-16 17:33:40,136 INFO L276 IsEmpty]: Start isEmpty. Operand 194293 states and 330582 transitions. [2023-12-16 17:33:40,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-16 17:33:40,197 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:33:40,197 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:33:40,203 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (24)] Forceful destruction successful, exit code 0 [2023-12-16 17:33:40,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:33:40,404 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:33:40,404 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:33:40,405 INFO L85 PathProgramCache]: Analyzing trace with hash -901573268, now seen corresponding path program 1 times [2023-12-16 17:33:40,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:33:40,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [473855962] [2023-12-16 17:33:40,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:33:40,405 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:33:40,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:33:40,406 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:33:40,436 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (25)] Waiting until timeout for monitored process [2023-12-16 17:33:40,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:33:40,966 INFO L262 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-16 17:33:40,969 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:33:41,083 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-16 17:33:41,083 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:33:41,083 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:33:41,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [473855962] [2023-12-16 17:33:41,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [473855962] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:33:41,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:33:41,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 17:33:41,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22728085] [2023-12-16 17:33:41,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:33:41,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 17:33:41,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:33:41,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 17:33:41,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-16 17:33:41,085 INFO L87 Difference]: Start difference. First operand 194293 states and 330582 transitions. Second operand has 9 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 4 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Received shutdown request... [2023-12-16 17:33:42,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 17:33:42,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2023-12-16 17:33:42,373 INFO L413 NwaCegarLoop]: 387 mSDtfsCounter, 507 mSDsluCounter, 2201 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 509 SdHoareTripleChecker+Valid, 2588 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:33:42,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [509 Valid, 2588 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:33:42,374 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 17:33:42,380 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (25)] Forceful destruction successful, exit code 0 [2023-12-16 17:33:42,384 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 17:33:42,384 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (25)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 17:33:42,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:33:42,581 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (194293states) and FLOYD_HOARE automaton (currently 9 states, 9 states before enhancement),while ReachableStatesComputation was computing reachable states (20977 states constructed, input type IntersectNwa). [2023-12-16 17:33:42,583 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:33:42,585 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 17:33:42,586 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 05:33:42 BoogieIcfgContainer [2023-12-16 17:33:42,586 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 17:33:42,587 INFO L158 Benchmark]: Toolchain (without parser) took 61347.93ms. Allocated memory was 165.7MB in the beginning and 7.8GB in the end (delta: 7.6GB). Free memory was 112.8MB in the beginning and 5.7GB in the end (delta: -5.6GB). Peak memory consumption was 2.1GB. Max. memory is 8.0GB. [2023-12-16 17:33:42,587 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 165.7MB. Free memory is still 116.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 17:33:42,587 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1028.29ms. Allocated memory was 165.7MB in the beginning and 222.3MB in the end (delta: 56.6MB). Free memory was 112.5MB in the beginning and 172.8MB in the end (delta: -60.3MB). Peak memory consumption was 42.0MB. Max. memory is 8.0GB. [2023-12-16 17:33:42,587 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.41ms. Allocated memory is still 222.3MB. Free memory was 172.8MB in the beginning and 166.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-16 17:33:42,587 INFO L158 Benchmark]: Boogie Preprocessor took 101.97ms. Allocated memory is still 222.3MB. Free memory was 166.6MB in the beginning and 159.7MB in the end (delta: 6.8MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2023-12-16 17:33:42,596 INFO L158 Benchmark]: RCFGBuilder took 1110.10ms. Allocated memory is still 222.3MB. Free memory was 159.7MB in the beginning and 167.5MB in the end (delta: -7.8MB). Peak memory consumption was 77.7MB. Max. memory is 8.0GB. [2023-12-16 17:33:42,596 INFO L158 Benchmark]: TraceAbstraction took 59026.99ms. Allocated memory was 222.3MB in the beginning and 7.8GB in the end (delta: 7.6GB). Free memory was 167.0MB in the beginning and 5.7GB in the end (delta: -5.5GB). Peak memory consumption was 2.1GB. Max. memory is 8.0GB. [2023-12-16 17:33:42,597 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 165.7MB. Free memory is still 116.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1028.29ms. Allocated memory was 165.7MB in the beginning and 222.3MB in the end (delta: 56.6MB). Free memory was 112.5MB in the beginning and 172.8MB in the end (delta: -60.3MB). Peak memory consumption was 42.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 75.41ms. Allocated memory is still 222.3MB. Free memory was 172.8MB in the beginning and 166.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 101.97ms. Allocated memory is still 222.3MB. Free memory was 166.6MB in the beginning and 159.7MB in the end (delta: 6.8MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 1110.10ms. Allocated memory is still 222.3MB. Free memory was 159.7MB in the beginning and 167.5MB in the end (delta: -7.8MB). Peak memory consumption was 77.7MB. Max. memory is 8.0GB. * TraceAbstraction took 59026.99ms. Allocated memory was 222.3MB in the beginning and 7.8GB in the end (delta: 7.6GB). Free memory was 167.0MB in the beginning and 5.7GB in the end (delta: -5.5GB). Peak memory consumption was 2.1GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 48]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [48] - GenericResultAtLocation [Line: 277]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [277] - GenericResultAtLocation [Line: 1357]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1357] - GenericResultAtLocation [Line: 1375]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1375] - GenericResultAtLocation [Line: 1424]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1424] - GenericResultAtLocation [Line: 1433]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1433] - GenericResultAtLocation [Line: 1799]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1799] - GenericResultAtLocation [Line: 2211]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2211] - GenericResultAtLocation [Line: 2503]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"SignForward_spec.i","") [2503] - GenericResultAtLocation [Line: 2530]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2530] - GenericResultAtLocation [Line: 2629]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2629] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 1429]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1429). Cancelled while NwaCegarLoop was constructing difference of abstraction (194293states) and FLOYD_HOARE automaton (currently 9 states, 9 states before enhancement),while ReachableStatesComputation was computing reachable states (20977 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 19 procedures, 299 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 59.0s, OverallIterations: 24, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.6s, AutomataDifference: 23.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4920 SdHoareTripleChecker+Valid, 4.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4662 mSDsluCounter, 32040 SdHoareTripleChecker+Invalid, 3.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21714 mSDsCounter, 512 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5948 IncrementalHoareTripleChecker+Invalid, 6460 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 512 mSolverCounterUnsat, 10326 mSDtfsCounter, 5948 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2661 GetRequests, 2567 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=194293occurred in iteration=23, InterpolantAutomatonStates: 105, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 23.1s AutomataMinimizationTime, 23 MinimizatonAttempts, 91325 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.9s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 2437 NumberOfCodeBlocks, 2388 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 2628 ConstructedInterpolants, 0 QuantifiedInterpolants, 3794 SizeOfPredicates, 39 NumberOfNonLiveVariables, 11574 ConjunctsInSsa, 105 ConjunctsInUnsatCore, 26 InterpolantComputations, 22 PerfectInterpolantSequences, 863/881 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown