/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/product-lines/email_spec9_product16.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 19:06:12,285 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 19:06:12,288 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 19:06:12,324 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 19:06:12,325 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 19:06:12,326 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 19:06:12,328 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 19:06:12,331 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 19:06:12,333 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 19:06:12,334 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 19:06:12,335 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 19:06:12,337 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 19:06:12,338 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 19:06:12,339 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 19:06:12,340 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 19:06:12,342 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 19:06:12,343 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 19:06:12,344 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 19:06:12,346 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 19:06:12,349 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 19:06:12,351 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 19:06:12,356 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 19:06:12,360 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 19:06:12,361 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 19:06:12,377 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-06 19:06:12,378 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-06 19:06:12,378 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-06 19:06:12,379 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-06 19:06:12,380 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-06 19:06:12,381 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-06 19:06:12,382 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-06 19:06:12,383 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-06 19:06:12,384 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-06 19:06:12,385 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-06 19:06:12,386 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-06 19:06:12,387 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-06 19:06:12,388 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-06 19:06:12,388 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-06 19:06:12,389 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 19:06:12,390 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 19:06:12,391 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 19:06:12,392 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-01-06 19:06:12,419 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 19:06:12,420 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 19:06:12,421 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 19:06:12,422 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 19:06:12,422 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 19:06:12,422 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 19:06:12,423 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 19:06:12,423 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 19:06:12,423 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 19:06:12,423 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 19:06:12,424 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 19:06:12,424 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 19:06:12,424 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 19:06:12,425 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 19:06:12,425 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 19:06:12,425 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 19:06:12,425 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 19:06:12,426 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 19:06:12,426 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 19:06:12,426 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 19:06:12,426 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 19:06:12,427 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 19:06:12,427 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 19:06:12,427 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 19:06:12,428 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 19:06:12,428 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 19:06:12,789 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 19:06:12,822 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 19:06:12,828 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 19:06:12,830 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 19:06:12,831 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 19:06:12,832 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec9_product16.cil.c [2021-01-06 19:06:12,927 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/bb787cca9/0111ec3f5bad473abba6a7f25e91453e/FLAG17eb34885 [2021-01-06 19:06:13,736 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 19:06:13,737 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec9_product16.cil.c [2021-01-06 19:06:13,777 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/bb787cca9/0111ec3f5bad473abba6a7f25e91453e/FLAG17eb34885 [2021-01-06 19:06:13,925 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/bb787cca9/0111ec3f5bad473abba6a7f25e91453e [2021-01-06 19:06:13,929 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 19:06:13,934 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 19:06:13,938 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 19:06:13,938 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 19:06:13,942 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 19:06:13,943 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 07:06:13" (1/1) ... [2021-01-06 19:06:13,946 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50a4c87e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:06:13, skipping insertion in model container [2021-01-06 19:06:13,946 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 07:06:13" (1/1) ... [2021-01-06 19:06:13,960 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 19:06:14,067 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: lhs: VariableLHS[~in_encrypted~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp2~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp3~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp6~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp7~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___1~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp8~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___2~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp9~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp4~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp5~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~3,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~1,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~1,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~2,] left hand side expression in assignment: lhs: VariableLHS[~msg~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp4~1,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~4,] left hand side expression in assignment: lhs: VariableLHS[~excep~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~cf~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_15~0,] left hand side expression in assignment: address: IdentifierExpression[~mem_15~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp7~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp8~1,] left hand side expression in assignment: lhs: VariableLHS[~mem_16~0,] left hand side expression in assignment: address: IdentifierExpression[~mem_16~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp9~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp10~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp11~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp12~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_17~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_18~0,] left hand side expression in assignment: address: IdentifierExpression[~mem_17~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp13~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp14~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_19~0,] left hand side expression in assignment: address: IdentifierExpression[~mem_19~0,] left hand side expression in assignment: lhs: VariableLHS[~excep~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp5~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp6~1,] left hand side expression in assignment: lhs: VariableLHS[~mem_15~1,] left hand side expression in assignment: lhs: VariableLHS[~cf~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp7~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp8~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp9~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp~5,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp10~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp11~1,] left hand side expression in assignment: lhs: VariableLHS[~mem_16~1,] left hand side expression in assignment: lhs: VariableLHS[~cf~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp12~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp13~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp14~1,] left hand side expression in assignment: lhs: VariableLHS[~mem_17~1,] left hand side expression in assignment: address: IdentifierExpression[~mem_17~1,] left hand side expression in assignment: lhs: VariableLHS[~excep~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp5~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp6~2,] left hand side expression in assignment: lhs: VariableLHS[~mem_16~2,] left hand side expression in assignment: lhs: VariableLHS[~cf~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp7~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp8~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp9~3,] left hand side expression in assignment: lhs: VariableLHS[~mem_17~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp10~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp11~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp12~2,] left hand side expression in assignment: lhs: VariableLHS[~mem_18~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp13~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp14~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp15~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_19~1,] left hand side expression in assignment: lhs: VariableLHS[~cf~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp~6,] left hand side expression in assignment: lhs: VariableLHS[~new~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_18~2,] left hand side expression in assignment: address: IdentifierExpression[~mem_18~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp10~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp11~3,] left hand side expression in assignment: lhs: VariableLHS[~mem_19~2,] left hand side expression in assignment: address: IdentifierExpression[~mem_19~2,] left hand side expression in assignment: lhs: VariableLHS[~head~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~5,] left hand side expression in assignment: lhs: VariableLHS[~temp~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp12~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp13~3,] left hand side expression in assignment: lhs: VariableLHS[~mem_20~0,] left hand side expression in assignment: lhs: VariableLHS[~next~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_21~0,] left hand side expression in assignment: lhs: VariableLHS[~excep~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp14~3,] left hand side expression in assignment: lhs: VariableLHS[~temp~0,] left hand side expression in assignment: lhs: VariableLHS[~count,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp15~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp16~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_22~0,] left hand side expression in assignment: lhs: VariableLHS[~head~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mem_23~0,] left hand side expression in assignment: lhs: VariableLHS[~excep~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp17~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~5,] left hand side expression in assignment: lhs: VariableLHS[~mem_24~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~5,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~5,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp4~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp5~3,] left hand side expression in assignment: lhs: VariableLHS[~mem_12~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp6~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp7~4,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp8~4,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp9~4,] left hand side expression in assignment: lhs: VariableLHS[~mem_13~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp10~4,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp11~4,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~6,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp4~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp5~4,] left hand side expression in assignment: lhs: VariableLHS[~mem_12~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp6~4,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp7~5,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp8~5,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp9~5,] left hand side expression in assignment: lhs: VariableLHS[~mem_13~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp10~5,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp11~5,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~7,] left hand side expression in assignment: lhs: VariableLHS[~__ste_Email_counter~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~8,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~8,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~9,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~9,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~9,] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_id0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_id1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~10,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~10,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~10,] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_from0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_from1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~11,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~11,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~11,] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_to0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_to1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~12,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~12,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp3~1,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~12,] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_subject0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_subject1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~13,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~13,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp3~2,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~13,] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_body0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_body1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~14,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~14,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~14,] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_isEncrypted0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_isEncrypted1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~15,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~15,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~15,] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_encryptionKey0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_encryptionKey1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~16,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~16,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~16,] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_isSigned0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_isSigned1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~17,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~17,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~17,] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_signKey0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_signKey1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~18,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~18,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~18,] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_isSignatureVerified0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_isSignatureVerified1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__utac__ad__arg1~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~7,] left hand side expression in assignment: lhs: VariableLHS[~tmp~8,] left hand side expression in assignment: lhs: VariableLHS[~tmp~9,] left hand side expression in assignment: lhs: VariableLHS[~receiver~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~2,] left hand side expression in assignment: lhs: VariableLHS[~pubkey~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~10,] left hand side expression in assignment: lhs: VariableLHS[~fwreceiver~0,] left hand side expression in assignment: lhs: VariableLHS[~__utac__ad__arg1~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp~11,] left hand side expression in assignment: lhs: VariableLHS[~privkey~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~3,] left hand side expression in assignment: lhs: VariableLHS[~tmp___1~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp___2~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp~12,] left hand side expression in assignment: lhs: VariableLHS[~client~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~19,] left hand side expression in assignment: lhs: VariableLHS[~tmp~13,] left hand side expression in assignment: lhs: VariableLHS[~email~0,] left hand side expression in assignment: lhs: VariableLHS[~queue_empty~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~queued_message~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~queued_client~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~20,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~21,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~22,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp4~4,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~23,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~23,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~23,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~24,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~25,] left hand side expression in assignment: lhs: VariableLHS[~op1~0,] left hand side expression in assignment: lhs: VariableLHS[~op2~0,] left hand side expression in assignment: lhs: VariableLHS[~op3~0,] left hand side expression in assignment: lhs: VariableLHS[~op4~0,] left hand side expression in assignment: lhs: VariableLHS[~op5~0,] left hand side expression in assignment: lhs: VariableLHS[~op6~0,] left hand side expression in assignment: lhs: VariableLHS[~op7~0,] left hand side expression in assignment: lhs: VariableLHS[~op8~0,] left hand side expression in assignment: lhs: VariableLHS[~op9~0,] left hand side expression in assignment: lhs: VariableLHS[~op10~0,] left hand side expression in assignment: lhs: VariableLHS[~op11~0,] left hand side expression in assignment: lhs: VariableLHS[~splverifierCounter~0,] left hand side expression in assignment: lhs: VariableLHS[~splverifierCounter~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___9~0,] left hand side expression in assignment: lhs: VariableLHS[~op1~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___8~0,] left hand side expression in assignment: lhs: VariableLHS[~op2~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___7~0,] left hand side expression in assignment: lhs: VariableLHS[~op3~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___6~0,] left hand side expression in assignment: lhs: VariableLHS[~op4~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___5~0,] left hand side expression in assignment: lhs: VariableLHS[~op5~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___4~0,] left hand side expression in assignment: lhs: VariableLHS[~op6~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___3~0,] left hand side expression in assignment: lhs: VariableLHS[~op7~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___2~2,] left hand side expression in assignment: lhs: VariableLHS[~op8~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___1~2,] left hand side expression in assignment: lhs: VariableLHS[~op9~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~4,] left hand side expression in assignment: lhs: VariableLHS[~op10~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~14,] left hand side expression in assignment: lhs: VariableLHS[~op11~0,] [2021-01-06 19:06:14,638 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec9_product16.cil.c[32959,32972] left hand side expression in assignment: lhs: VariableLHS[~tmp___1~3,] left hand side expression in assignment: lhs: VariableLHS[~tmp~15,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~5,] left hand side expression in assignment: lhs: VariableLHS[~bob~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp1~0,] left hand side expression in assignment: lhs: VariableLHS[~rjh~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp2~1,] left hand side expression in assignment: lhs: VariableLHS[~chuck~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp3~3,] left hand side expression in assignment: lhs: VariableLHS[~tmp~16,] left hand side expression in assignment: lhs: VariableLHS[~tmp~17,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp3~4,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~6,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp4~5,] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_counter~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~27,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~27,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~28,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~28,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~28,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp3~5,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~28,] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_name0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_name1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_name2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~29,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~29,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~29,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~29,] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_outbuffer0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_outbuffer1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_outbuffer2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~30,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~30,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~30,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~30,] left hand side expression in assignment: lhs: VariableLHS[~__ste_ClientAddressBook_size0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_ClientAddressBook_size1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_ClientAddressBook_size2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~18,] left hand side expression in assignment: lhs: VariableLHS[~size~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp5~5,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~31,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~31,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~32,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~32,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~32,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~32,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~32,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~32,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~32,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~32,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~32,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~32,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~32,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~32,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~32,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~33,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~33,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~33,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~33,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~33,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~33,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~33,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~33,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~33,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~33,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~33,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~33,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~33,] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook0_Alias0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook0_Alias1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook0_Alias2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook1_Alias0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook1_Alias1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook1_Alias2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook2_Alias0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook2_Alias1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook2_Alias2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~34,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~34,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~34,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~34,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~34,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~34,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~34,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~34,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~34,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~34,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~34,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~34,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~34,] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook0_Address0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook0_Address1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook0_Address2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook1_Address0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook1_Address1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook1_Address2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook2_Address0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook2_Address1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook2_Address2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~35,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~35,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~35,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~35,] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_autoResponse0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_autoResponse1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_autoResponse2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~36,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~36,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~36,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~36,] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_privateKey0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_privateKey1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_privateKey2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~37,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~37,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~37,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~37,] left hand side expression in assignment: lhs: VariableLHS[~__ste_ClientKeyring_size0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_ClientKeyring_size1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_ClientKeyring_size2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~19,] left hand side expression in assignment: lhs: VariableLHS[~size~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp5~6,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~38,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~38,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~39,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~39,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~39,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~39,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~39,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~39,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~39,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~39,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~39,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~39,] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_Keyring0_User0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_Keyring0_User1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_Keyring1_User0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_Keyring1_User1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_Keyring2_User0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_Keyring2_User1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~40,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~40,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~40,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~40,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~40,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~40,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~40,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~40,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~40,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~40,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~41,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~41,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~41,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~41,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~41,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~41,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~41,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~41,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~41,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~41,] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_Keyring0_PublicKey0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_Keyring0_PublicKey1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_Keyring1_PublicKey0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_Keyring1_PublicKey1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_Keyring2_PublicKey0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_Keyring2_PublicKey1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~42,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~42,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~42,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~42,] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_forwardReceiver0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_forwardReceiver1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_forwardReceiver2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~43,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~43,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~43,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~43,] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_idCounter0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_idCounter1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_idCounter2~0,GLOBAL] [2021-01-06 19:06:14,815 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 19:06:14,832 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: lhs: VariableLHS[~in_encrypted~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp2~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp3~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp6~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp7~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___1~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp8~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___2~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp9~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp4~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp5~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~3,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~1,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~1,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~2,] left hand side expression in assignment: lhs: VariableLHS[~msg~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp4~1,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~4,] left hand side expression in assignment: lhs: VariableLHS[~excep~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~cf~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_15~0,] left hand side expression in assignment: address: IdentifierExpression[~mem_15~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp7~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp8~1,] left hand side expression in assignment: lhs: VariableLHS[~mem_16~0,] left hand side expression in assignment: address: IdentifierExpression[~mem_16~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp9~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp10~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp11~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp12~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_17~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_18~0,] left hand side expression in assignment: address: IdentifierExpression[~mem_17~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp13~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp14~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_19~0,] left hand side expression in assignment: address: IdentifierExpression[~mem_19~0,] left hand side expression in assignment: lhs: VariableLHS[~excep~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp5~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp6~1,] left hand side expression in assignment: lhs: VariableLHS[~mem_15~1,] left hand side expression in assignment: lhs: VariableLHS[~cf~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp7~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp8~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp9~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp~5,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp10~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp11~1,] left hand side expression in assignment: lhs: VariableLHS[~mem_16~1,] left hand side expression in assignment: lhs: VariableLHS[~cf~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp12~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp13~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp14~1,] left hand side expression in assignment: lhs: VariableLHS[~mem_17~1,] left hand side expression in assignment: address: IdentifierExpression[~mem_17~1,] left hand side expression in assignment: lhs: VariableLHS[~excep~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp5~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp6~2,] left hand side expression in assignment: lhs: VariableLHS[~mem_16~2,] left hand side expression in assignment: lhs: VariableLHS[~cf~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp7~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp8~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp9~3,] left hand side expression in assignment: lhs: VariableLHS[~mem_17~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp10~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp11~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp12~2,] left hand side expression in assignment: lhs: VariableLHS[~mem_18~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp13~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp14~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp15~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_19~1,] left hand side expression in assignment: lhs: VariableLHS[~cf~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp~6,] left hand side expression in assignment: lhs: VariableLHS[~new~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_18~2,] left hand side expression in assignment: address: IdentifierExpression[~mem_18~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp10~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp11~3,] left hand side expression in assignment: lhs: VariableLHS[~mem_19~2,] left hand side expression in assignment: address: IdentifierExpression[~mem_19~2,] left hand side expression in assignment: lhs: VariableLHS[~head~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~5,] left hand side expression in assignment: lhs: VariableLHS[~temp~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp12~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp13~3,] left hand side expression in assignment: lhs: VariableLHS[~mem_20~0,] left hand side expression in assignment: lhs: VariableLHS[~next~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_21~0,] left hand side expression in assignment: lhs: VariableLHS[~excep~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp14~3,] left hand side expression in assignment: lhs: VariableLHS[~temp~0,] left hand side expression in assignment: lhs: VariableLHS[~count,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp15~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp16~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_22~0,] left hand side expression in assignment: lhs: VariableLHS[~head~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mem_23~0,] left hand side expression in assignment: lhs: VariableLHS[~excep~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp17~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~5,] left hand side expression in assignment: lhs: VariableLHS[~mem_24~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~5,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~5,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp4~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp5~3,] left hand side expression in assignment: lhs: VariableLHS[~mem_12~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp6~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp7~4,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp8~4,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp9~4,] left hand side expression in assignment: lhs: VariableLHS[~mem_13~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp10~4,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp11~4,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~6,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp4~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp5~4,] left hand side expression in assignment: lhs: VariableLHS[~mem_12~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp6~4,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp7~5,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp8~5,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp9~5,] left hand side expression in assignment: lhs: VariableLHS[~mem_13~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp10~5,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp11~5,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~7,] left hand side expression in assignment: lhs: VariableLHS[~__ste_Email_counter~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~8,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~8,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~9,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~9,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~9,] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_id0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_id1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~10,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~10,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~10,] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_from0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_from1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~11,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~11,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~11,] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_to0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_to1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~12,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~12,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp3~1,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~12,] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_subject0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_subject1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~13,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~13,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp3~2,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~13,] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_body0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_body1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~14,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~14,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~14,] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_isEncrypted0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_isEncrypted1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~15,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~15,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~15,] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_encryptionKey0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_encryptionKey1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~16,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~16,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~16,] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_isSigned0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_isSigned1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~17,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~17,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~17,] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_signKey0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_signKey1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~18,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~18,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~18,] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_isSignatureVerified0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_isSignatureVerified1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__utac__ad__arg1~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~7,] left hand side expression in assignment: lhs: VariableLHS[~tmp~8,] left hand side expression in assignment: lhs: VariableLHS[~tmp~9,] left hand side expression in assignment: lhs: VariableLHS[~receiver~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~2,] left hand side expression in assignment: lhs: VariableLHS[~pubkey~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~10,] left hand side expression in assignment: lhs: VariableLHS[~fwreceiver~0,] left hand side expression in assignment: lhs: VariableLHS[~__utac__ad__arg1~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp~11,] left hand side expression in assignment: lhs: VariableLHS[~privkey~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~3,] left hand side expression in assignment: lhs: VariableLHS[~tmp___1~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp___2~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp~12,] left hand side expression in assignment: lhs: VariableLHS[~client~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~19,] left hand side expression in assignment: lhs: VariableLHS[~tmp~13,] left hand side expression in assignment: lhs: VariableLHS[~email~0,] left hand side expression in assignment: lhs: VariableLHS[~queue_empty~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~queued_message~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~queued_client~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~20,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~21,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~22,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp4~4,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~23,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~23,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~23,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~24,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~25,] left hand side expression in assignment: lhs: VariableLHS[~op1~0,] left hand side expression in assignment: lhs: VariableLHS[~op2~0,] left hand side expression in assignment: lhs: VariableLHS[~op3~0,] left hand side expression in assignment: lhs: VariableLHS[~op4~0,] left hand side expression in assignment: lhs: VariableLHS[~op5~0,] left hand side expression in assignment: lhs: VariableLHS[~op6~0,] left hand side expression in assignment: lhs: VariableLHS[~op7~0,] left hand side expression in assignment: lhs: VariableLHS[~op8~0,] left hand side expression in assignment: lhs: VariableLHS[~op9~0,] left hand side expression in assignment: lhs: VariableLHS[~op10~0,] left hand side expression in assignment: lhs: VariableLHS[~op11~0,] left hand side expression in assignment: lhs: VariableLHS[~splverifierCounter~0,] left hand side expression in assignment: lhs: VariableLHS[~splverifierCounter~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___9~0,] left hand side expression in assignment: lhs: VariableLHS[~op1~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___8~0,] left hand side expression in assignment: lhs: VariableLHS[~op2~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___7~0,] left hand side expression in assignment: lhs: VariableLHS[~op3~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___6~0,] left hand side expression in assignment: lhs: VariableLHS[~op4~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___5~0,] left hand side expression in assignment: lhs: VariableLHS[~op5~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___4~0,] left hand side expression in assignment: lhs: VariableLHS[~op6~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___3~0,] left hand side expression in assignment: lhs: VariableLHS[~op7~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___2~2,] left hand side expression in assignment: lhs: VariableLHS[~op8~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___1~2,] left hand side expression in assignment: lhs: VariableLHS[~op9~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~4,] left hand side expression in assignment: lhs: VariableLHS[~op10~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~14,] left hand side expression in assignment: lhs: VariableLHS[~op11~0,] [2021-01-06 19:06:14,931 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec9_product16.cil.c[32959,32972] left hand side expression in assignment: lhs: VariableLHS[~tmp___1~3,] left hand side expression in assignment: lhs: VariableLHS[~tmp~15,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~5,] left hand side expression in assignment: lhs: VariableLHS[~bob~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp1~0,] left hand side expression in assignment: lhs: VariableLHS[~rjh~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp2~1,] left hand side expression in assignment: lhs: VariableLHS[~chuck~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp3~3,] left hand side expression in assignment: lhs: VariableLHS[~tmp~16,] left hand side expression in assignment: lhs: VariableLHS[~tmp~17,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp3~4,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~6,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp4~5,] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_counter~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~27,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~27,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~28,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~28,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~28,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp3~5,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~28,] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_name0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_name1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_name2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~29,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~29,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~29,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~29,] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_outbuffer0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_outbuffer1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_outbuffer2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~30,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~30,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~30,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~30,] left hand side expression in assignment: lhs: VariableLHS[~__ste_ClientAddressBook_size0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_ClientAddressBook_size1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_ClientAddressBook_size2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~18,] left hand side expression in assignment: lhs: VariableLHS[~size~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp5~5,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~31,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~31,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~32,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~32,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~32,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~32,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~32,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~32,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~32,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~32,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~32,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~32,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~32,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~32,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~32,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~33,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~33,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~33,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~33,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~33,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~33,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~33,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~33,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~33,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~33,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~33,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~33,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~33,] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook0_Alias0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook0_Alias1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook0_Alias2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook1_Alias0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook1_Alias1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook1_Alias2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook2_Alias0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook2_Alias1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook2_Alias2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~34,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~34,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~34,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~34,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~34,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~34,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~34,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~34,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~34,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~34,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~34,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~34,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~34,] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook0_Address0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook0_Address1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook0_Address2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook1_Address0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook1_Address1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook1_Address2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook2_Address0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook2_Address1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook2_Address2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~35,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~35,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~35,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~35,] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_autoResponse0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_autoResponse1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_autoResponse2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~36,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~36,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~36,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~36,] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_privateKey0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_privateKey1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_privateKey2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~37,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~37,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~37,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~37,] left hand side expression in assignment: lhs: VariableLHS[~__ste_ClientKeyring_size0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_ClientKeyring_size1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_ClientKeyring_size2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~19,] left hand side expression in assignment: lhs: VariableLHS[~size~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp5~6,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~38,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~38,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~39,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~39,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~39,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~39,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~39,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~39,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~39,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~39,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~39,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~39,] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_Keyring0_User0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_Keyring0_User1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_Keyring1_User0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_Keyring1_User1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_Keyring2_User0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_Keyring2_User1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~40,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~40,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~40,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~40,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~40,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~40,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~40,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~40,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~40,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~40,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~41,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~41,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~41,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~41,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~41,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~41,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~41,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~41,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~41,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~41,] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_Keyring0_PublicKey0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_Keyring0_PublicKey1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_Keyring1_PublicKey0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_Keyring1_PublicKey1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_Keyring2_PublicKey0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_Keyring2_PublicKey1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~42,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~42,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~42,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~42,] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_forwardReceiver0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_forwardReceiver1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_forwardReceiver2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~43,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~43,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~43,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~43,] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_idCounter0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_idCounter1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_idCounter2~0,GLOBAL] [2021-01-06 19:06:14,989 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 19:06:15,076 INFO L208 MainTranslator]: Completed translation [2021-01-06 19:06:15,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:06:15 WrapperNode [2021-01-06 19:06:15,077 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 19:06:15,078 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 19:06:15,079 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 19:06:15,079 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 19:06:15,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:06:15" (1/1) ... [2021-01-06 19:06:15,121 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:06:15" (1/1) ... [2021-01-06 19:06:15,231 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 19:06:15,232 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 19:06:15,232 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 19:06:15,232 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 19:06:15,243 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:06:15" (1/1) ... [2021-01-06 19:06:15,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:06:15" (1/1) ... [2021-01-06 19:06:15,256 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:06:15" (1/1) ... [2021-01-06 19:06:15,256 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:06:15" (1/1) ... [2021-01-06 19:06:15,308 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:06:15" (1/1) ... [2021-01-06 19:06:15,339 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:06:15" (1/1) ... [2021-01-06 19:06:15,354 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:06:15" (1/1) ... [2021-01-06 19:06:15,383 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 19:06:15,384 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 19:06:15,384 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 19:06:15,384 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 19:06:15,387 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:06:15" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 19:06:15,492 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-01-06 19:06:15,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 19:06:15,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 19:06:15,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 19:06:15,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 19:06:18,109 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 19:06:18,109 INFO L299 CfgBuilder]: Removed 295 assume(true) statements. [2021-01-06 19:06:18,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 07:06:18 BoogieIcfgContainer [2021-01-06 19:06:18,112 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 19:06:18,114 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 19:06:18,114 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 19:06:18,117 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 19:06:18,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 07:06:13" (1/3) ... [2021-01-06 19:06:18,119 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f7278ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 07:06:18, skipping insertion in model container [2021-01-06 19:06:18,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:06:15" (2/3) ... [2021-01-06 19:06:18,119 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f7278ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 07:06:18, skipping insertion in model container [2021-01-06 19:06:18,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 07:06:18" (3/3) ... [2021-01-06 19:06:18,121 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec9_product16.cil.c [2021-01-06 19:06:18,128 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 19:06:18,134 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-01-06 19:06:18,152 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-01-06 19:06:18,193 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 19:06:18,193 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 19:06:18,193 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 19:06:18,193 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 19:06:18,194 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 19:06:18,194 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 19:06:18,194 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 19:06:18,194 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 19:06:18,221 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states. [2021-01-06 19:06:18,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-01-06 19:06:18,235 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:06:18,236 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:06:18,237 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:06:18,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:06:18,244 INFO L82 PathProgramCache]: Analyzing trace with hash 827013746, now seen corresponding path program 1 times [2021-01-06 19:06:18,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:06:18,254 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741717966] [2021-01-06 19:06:18,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:06:18,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:06:18,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:06:18,735 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741717966] [2021-01-06 19:06:18,738 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:06:18,739 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:06:18,743 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374867952] [2021-01-06 19:06:18,757 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:06:18,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:06:18,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:06:18,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:06:18,808 INFO L87 Difference]: Start difference. First operand 451 states. Second operand 3 states. [2021-01-06 19:06:19,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:06:19,043 INFO L93 Difference]: Finished difference Result 1318 states and 2288 transitions. [2021-01-06 19:06:19,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:06:19,045 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 41 [2021-01-06 19:06:19,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:06:19,102 INFO L225 Difference]: With dead ends: 1318 [2021-01-06 19:06:19,102 INFO L226 Difference]: Without dead ends: 750 [2021-01-06 19:06:19,112 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:06:19,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2021-01-06 19:06:19,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 384. [2021-01-06 19:06:19,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 384 states. [2021-01-06 19:06:19,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 666 transitions. [2021-01-06 19:06:19,218 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 666 transitions. Word has length 41 [2021-01-06 19:06:19,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:06:19,219 INFO L481 AbstractCegarLoop]: Abstraction has 384 states and 666 transitions. [2021-01-06 19:06:19,219 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:06:19,219 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 666 transitions. [2021-01-06 19:06:19,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-01-06 19:06:19,223 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:06:19,223 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:06:19,223 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 19:06:19,224 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:06:19,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:06:19,225 INFO L82 PathProgramCache]: Analyzing trace with hash -1561724417, now seen corresponding path program 1 times [2021-01-06 19:06:19,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:06:19,225 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158905808] [2021-01-06 19:06:19,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:06:19,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:06:19,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:06:19,407 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158905808] [2021-01-06 19:06:19,410 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:06:19,410 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 19:06:19,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461448731] [2021-01-06 19:06:19,414 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 19:06:19,415 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:06:19,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 19:06:19,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:06:19,419 INFO L87 Difference]: Start difference. First operand 384 states and 666 transitions. Second operand 5 states. [2021-01-06 19:06:19,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:06:19,681 INFO L93 Difference]: Finished difference Result 1101 states and 1914 transitions. [2021-01-06 19:06:19,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-06 19:06:19,682 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 43 [2021-01-06 19:06:19,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:06:19,688 INFO L225 Difference]: With dead ends: 1101 [2021-01-06 19:06:19,688 INFO L226 Difference]: Without dead ends: 736 [2021-01-06 19:06:19,691 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-01-06 19:06:19,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2021-01-06 19:06:19,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 384. [2021-01-06 19:06:19,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 384 states. [2021-01-06 19:06:19,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 665 transitions. [2021-01-06 19:06:19,736 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 665 transitions. Word has length 43 [2021-01-06 19:06:19,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:06:19,737 INFO L481 AbstractCegarLoop]: Abstraction has 384 states and 665 transitions. [2021-01-06 19:06:19,737 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 19:06:19,737 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 665 transitions. [2021-01-06 19:06:19,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-01-06 19:06:19,748 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:06:19,748 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:06:19,748 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-06 19:06:19,749 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:06:19,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:06:19,752 INFO L82 PathProgramCache]: Analyzing trace with hash -1671434094, now seen corresponding path program 1 times [2021-01-06 19:06:19,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:06:19,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484922360] [2021-01-06 19:06:19,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:06:19,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:06:19,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:06:19,946 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484922360] [2021-01-06 19:06:19,946 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:06:19,947 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:06:19,947 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382707249] [2021-01-06 19:06:19,947 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:06:19,948 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:06:19,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:06:19,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:06:19,949 INFO L87 Difference]: Start difference. First operand 384 states and 665 transitions. Second operand 3 states. [2021-01-06 19:06:19,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:06:19,997 INFO L93 Difference]: Finished difference Result 750 states and 1304 transitions. [2021-01-06 19:06:19,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:06:19,997 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 44 [2021-01-06 19:06:19,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:06:20,000 INFO L225 Difference]: With dead ends: 750 [2021-01-06 19:06:20,000 INFO L226 Difference]: Without dead ends: 389 [2021-01-06 19:06:20,001 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:06:20,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2021-01-06 19:06:20,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 384. [2021-01-06 19:06:20,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 384 states. [2021-01-06 19:06:20,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 664 transitions. [2021-01-06 19:06:20,019 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 664 transitions. Word has length 44 [2021-01-06 19:06:20,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:06:20,019 INFO L481 AbstractCegarLoop]: Abstraction has 384 states and 664 transitions. [2021-01-06 19:06:20,019 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:06:20,019 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 664 transitions. [2021-01-06 19:06:20,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-01-06 19:06:20,021 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:06:20,021 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:06:20,021 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-06 19:06:20,021 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:06:20,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:06:20,022 INFO L82 PathProgramCache]: Analyzing trace with hash 2033694732, now seen corresponding path program 1 times [2021-01-06 19:06:20,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:06:20,023 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23804552] [2021-01-06 19:06:20,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:06:20,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:06:20,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:06:20,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23804552] [2021-01-06 19:06:20,162 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:06:20,162 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:06:20,163 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238416356] [2021-01-06 19:06:20,163 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:06:20,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:06:20,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:06:20,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:06:20,164 INFO L87 Difference]: Start difference. First operand 384 states and 664 transitions. Second operand 3 states. [2021-01-06 19:06:20,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:06:20,227 INFO L93 Difference]: Finished difference Result 760 states and 1317 transitions. [2021-01-06 19:06:20,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:06:20,227 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2021-01-06 19:06:20,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:06:20,233 INFO L225 Difference]: With dead ends: 760 [2021-01-06 19:06:20,233 INFO L226 Difference]: Without dead ends: 384 [2021-01-06 19:06:20,235 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:06:20,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2021-01-06 19:06:20,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 384. [2021-01-06 19:06:20,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 384 states. [2021-01-06 19:06:20,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 662 transitions. [2021-01-06 19:06:20,253 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 662 transitions. Word has length 45 [2021-01-06 19:06:20,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:06:20,253 INFO L481 AbstractCegarLoop]: Abstraction has 384 states and 662 transitions. [2021-01-06 19:06:20,253 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:06:20,253 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 662 transitions. [2021-01-06 19:06:20,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-01-06 19:06:20,254 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:06:20,255 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:06:20,255 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-06 19:06:20,255 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:06:20,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:06:20,256 INFO L82 PathProgramCache]: Analyzing trace with hash 99112535, now seen corresponding path program 1 times [2021-01-06 19:06:20,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:06:20,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565433996] [2021-01-06 19:06:20,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:06:20,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:06:20,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:06:20,356 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565433996] [2021-01-06 19:06:20,356 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:06:20,356 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 19:06:20,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750791434] [2021-01-06 19:06:20,357 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 19:06:20,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:06:20,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 19:06:20,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:06:20,358 INFO L87 Difference]: Start difference. First operand 384 states and 662 transitions. Second operand 5 states. [2021-01-06 19:06:20,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:06:20,516 INFO L93 Difference]: Finished difference Result 1091 states and 1894 transitions. [2021-01-06 19:06:20,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 19:06:20,516 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 46 [2021-01-06 19:06:20,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:06:20,521 INFO L225 Difference]: With dead ends: 1091 [2021-01-06 19:06:20,521 INFO L226 Difference]: Without dead ends: 734 [2021-01-06 19:06:20,522 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-01-06 19:06:20,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734 states. [2021-01-06 19:06:20,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734 to 384. [2021-01-06 19:06:20,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 384 states. [2021-01-06 19:06:20,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 661 transitions. [2021-01-06 19:06:20,569 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 661 transitions. Word has length 46 [2021-01-06 19:06:20,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:06:20,572 INFO L481 AbstractCegarLoop]: Abstraction has 384 states and 661 transitions. [2021-01-06 19:06:20,572 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 19:06:20,572 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 661 transitions. [2021-01-06 19:06:20,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-01-06 19:06:20,574 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:06:20,575 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:06:20,575 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-06 19:06:20,575 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:06:20,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:06:20,576 INFO L82 PathProgramCache]: Analyzing trace with hash -662962732, now seen corresponding path program 1 times [2021-01-06 19:06:20,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:06:20,576 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507107901] [2021-01-06 19:06:20,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:06:20,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:06:20,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:06:20,711 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507107901] [2021-01-06 19:06:20,712 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:06:20,712 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 19:06:20,712 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587010146] [2021-01-06 19:06:20,713 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 19:06:20,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:06:20,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 19:06:20,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:06:20,714 INFO L87 Difference]: Start difference. First operand 384 states and 661 transitions. Second operand 5 states. [2021-01-06 19:06:20,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:06:20,901 INFO L93 Difference]: Finished difference Result 1096 states and 1899 transitions. [2021-01-06 19:06:20,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 19:06:20,902 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2021-01-06 19:06:20,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:06:20,907 INFO L225 Difference]: With dead ends: 1096 [2021-01-06 19:06:20,907 INFO L226 Difference]: Without dead ends: 739 [2021-01-06 19:06:20,908 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-01-06 19:06:20,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2021-01-06 19:06:20,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 384. [2021-01-06 19:06:20,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 384 states. [2021-01-06 19:06:20,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 660 transitions. [2021-01-06 19:06:20,937 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 660 transitions. Word has length 47 [2021-01-06 19:06:20,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:06:20,937 INFO L481 AbstractCegarLoop]: Abstraction has 384 states and 660 transitions. [2021-01-06 19:06:20,937 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 19:06:20,937 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 660 transitions. [2021-01-06 19:06:20,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-01-06 19:06:20,938 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:06:20,938 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:06:20,939 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-06 19:06:20,939 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:06:20,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:06:20,940 INFO L82 PathProgramCache]: Analyzing trace with hash 1995610556, now seen corresponding path program 1 times [2021-01-06 19:06:20,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:06:20,940 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841254049] [2021-01-06 19:06:20,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:06:20,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:06:21,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:06:21,004 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841254049] [2021-01-06 19:06:21,004 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:06:21,005 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:06:21,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812957025] [2021-01-06 19:06:21,005 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:06:21,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:06:21,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:06:21,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:06:21,007 INFO L87 Difference]: Start difference. First operand 384 states and 660 transitions. Second operand 3 states. [2021-01-06 19:06:21,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:06:21,038 INFO L93 Difference]: Finished difference Result 530 states and 896 transitions. [2021-01-06 19:06:21,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:06:21,039 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2021-01-06 19:06:21,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:06:21,041 INFO L225 Difference]: With dead ends: 530 [2021-01-06 19:06:21,042 INFO L226 Difference]: Without dead ends: 387 [2021-01-06 19:06:21,042 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:06:21,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2021-01-06 19:06:21,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 386. [2021-01-06 19:06:21,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 386 states. [2021-01-06 19:06:21,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 662 transitions. [2021-01-06 19:06:21,067 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 662 transitions. Word has length 48 [2021-01-06 19:06:21,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:06:21,067 INFO L481 AbstractCegarLoop]: Abstraction has 386 states and 662 transitions. [2021-01-06 19:06:21,067 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:06:21,067 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 662 transitions. [2021-01-06 19:06:21,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-01-06 19:06:21,069 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:06:21,069 INFO L422 BasicCegarLoop]: trace histogram [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] [2021-01-06 19:06:21,069 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-06 19:06:21,069 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:06:21,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:06:21,070 INFO L82 PathProgramCache]: Analyzing trace with hash 146696318, now seen corresponding path program 1 times [2021-01-06 19:06:21,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:06:21,070 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303563382] [2021-01-06 19:06:21,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:06:21,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:06:21,129 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:06:21,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303563382] [2021-01-06 19:06:21,130 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:06:21,130 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:06:21,130 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251221257] [2021-01-06 19:06:21,131 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:06:21,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:06:21,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:06:21,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:06:21,132 INFO L87 Difference]: Start difference. First operand 386 states and 662 transitions. Second operand 3 states. [2021-01-06 19:06:21,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:06:21,186 INFO L93 Difference]: Finished difference Result 1044 states and 1810 transitions. [2021-01-06 19:06:21,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:06:21,187 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 54 [2021-01-06 19:06:21,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:06:21,191 INFO L225 Difference]: With dead ends: 1044 [2021-01-06 19:06:21,191 INFO L226 Difference]: Without dead ends: 689 [2021-01-06 19:06:21,192 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:06:21,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2021-01-06 19:06:21,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 546. [2021-01-06 19:06:21,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 546 states. [2021-01-06 19:06:21,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 955 transitions. [2021-01-06 19:06:21,253 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 955 transitions. Word has length 54 [2021-01-06 19:06:21,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:06:21,253 INFO L481 AbstractCegarLoop]: Abstraction has 546 states and 955 transitions. [2021-01-06 19:06:21,253 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:06:21,253 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 955 transitions. [2021-01-06 19:06:21,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-01-06 19:06:21,254 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:06:21,254 INFO L422 BasicCegarLoop]: trace histogram [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] [2021-01-06 19:06:21,256 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-06 19:06:21,257 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:06:21,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:06:21,257 INFO L82 PathProgramCache]: Analyzing trace with hash -409688641, now seen corresponding path program 1 times [2021-01-06 19:06:21,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:06:21,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978426720] [2021-01-06 19:06:21,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:06:21,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:06:21,374 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:06:21,380 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978426720] [2021-01-06 19:06:21,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [614936526] [2021-01-06 19:06:21,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 19:06:21,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:06:21,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 838 conjuncts, 3 conjunts are in the unsatisfiable core [2021-01-06 19:06:21,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:06:21,892 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-01-06 19:06:21,892 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 19:06:21,892 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-01-06 19:06:21,893 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755538031] [2021-01-06 19:06:21,893 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:06:21,893 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:06:21,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:06:21,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:06:21,894 INFO L87 Difference]: Start difference. First operand 546 states and 955 transitions. Second operand 3 states. [2021-01-06 19:06:21,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:06:21,934 INFO L93 Difference]: Finished difference Result 647 states and 1117 transitions. [2021-01-06 19:06:21,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:06:21,934 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 55 [2021-01-06 19:06:21,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:06:21,938 INFO L225 Difference]: With dead ends: 647 [2021-01-06 19:06:21,938 INFO L226 Difference]: Without dead ends: 540 [2021-01-06 19:06:21,939 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:06:21,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2021-01-06 19:06:21,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 540. [2021-01-06 19:06:21,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 540 states. [2021-01-06 19:06:21,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 946 transitions. [2021-01-06 19:06:21,976 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 946 transitions. Word has length 55 [2021-01-06 19:06:21,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:06:21,976 INFO L481 AbstractCegarLoop]: Abstraction has 540 states and 946 transitions. [2021-01-06 19:06:21,976 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:06:21,977 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 946 transitions. [2021-01-06 19:06:21,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-01-06 19:06:21,978 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:06:21,979 INFO L422 BasicCegarLoop]: trace histogram [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] [2021-01-06 19:06:22,192 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-01-06 19:06:22,193 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:06:22,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:06:22,194 INFO L82 PathProgramCache]: Analyzing trace with hash -1921623199, now seen corresponding path program 1 times [2021-01-06 19:06:22,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:06:22,195 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295100203] [2021-01-06 19:06:22,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:06:22,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:06:22,303 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:06:22,303 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295100203] [2021-01-06 19:06:22,303 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1272920886] [2021-01-06 19:06:22,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 19:06:22,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:06:22,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 1080 conjuncts, 3 conjunts are in the unsatisfiable core [2021-01-06 19:06:22,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:06:22,840 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:06:22,841 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 19:06:22,841 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-01-06 19:06:22,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735939188] [2021-01-06 19:06:22,842 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 19:06:22,842 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:06:22,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 19:06:22,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:06:22,843 INFO L87 Difference]: Start difference. First operand 540 states and 946 transitions. Second operand 5 states. [2021-01-06 19:06:22,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:06:22,915 INFO L93 Difference]: Finished difference Result 1030 states and 1786 transitions. [2021-01-06 19:06:22,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 19:06:22,915 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 86 [2021-01-06 19:06:22,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:06:22,921 INFO L225 Difference]: With dead ends: 1030 [2021-01-06 19:06:22,921 INFO L226 Difference]: Without dead ends: 893 [2021-01-06 19:06:22,922 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:06:22,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 893 states. [2021-01-06 19:06:22,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 893 to 754. [2021-01-06 19:06:22,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 754 states. [2021-01-06 19:06:23,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 1336 transitions. [2021-01-06 19:06:23,001 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 1336 transitions. Word has length 86 [2021-01-06 19:06:23,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:06:23,002 INFO L481 AbstractCegarLoop]: Abstraction has 754 states and 1336 transitions. [2021-01-06 19:06:23,002 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 19:06:23,002 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 1336 transitions. [2021-01-06 19:06:23,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-01-06 19:06:23,004 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:06:23,004 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:06:23,219 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-01-06 19:06:23,220 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:06:23,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:06:23,222 INFO L82 PathProgramCache]: Analyzing trace with hash 1092718708, now seen corresponding path program 1 times [2021-01-06 19:06:23,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:06:23,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538268730] [2021-01-06 19:06:23,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:06:23,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:06:23,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:06:23,309 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538268730] [2021-01-06 19:06:23,309 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:06:23,310 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:06:23,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441027506] [2021-01-06 19:06:23,310 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:06:23,310 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:06:23,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:06:23,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:06:23,311 INFO L87 Difference]: Start difference. First operand 754 states and 1336 transitions. Second operand 3 states. [2021-01-06 19:06:23,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:06:23,402 INFO L93 Difference]: Finished difference Result 1928 states and 3432 transitions. [2021-01-06 19:06:23,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:06:23,402 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 92 [2021-01-06 19:06:23,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:06:23,411 INFO L225 Difference]: With dead ends: 1928 [2021-01-06 19:06:23,412 INFO L226 Difference]: Without dead ends: 1263 [2021-01-06 19:06:23,413 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:06:23,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1263 states. [2021-01-06 19:06:23,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1263 to 1126. [2021-01-06 19:06:23,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1126 states. [2021-01-06 19:06:23,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1126 states to 1126 states and 2014 transitions. [2021-01-06 19:06:23,493 INFO L78 Accepts]: Start accepts. Automaton has 1126 states and 2014 transitions. Word has length 92 [2021-01-06 19:06:23,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:06:23,494 INFO L481 AbstractCegarLoop]: Abstraction has 1126 states and 2014 transitions. [2021-01-06 19:06:23,494 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:06:23,494 INFO L276 IsEmpty]: Start isEmpty. Operand 1126 states and 2014 transitions. [2021-01-06 19:06:23,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-01-06 19:06:23,498 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:06:23,498 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:06:23,498 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-01-06 19:06:23,498 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:06:23,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:06:23,499 INFO L82 PathProgramCache]: Analyzing trace with hash -617460444, now seen corresponding path program 2 times [2021-01-06 19:06:23,499 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:06:23,500 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435705990] [2021-01-06 19:06:23,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:06:23,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:06:23,585 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:06:23,585 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435705990] [2021-01-06 19:06:23,586 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:06:23,586 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 19:06:23,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617231075] [2021-01-06 19:06:23,586 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 19:06:23,587 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:06:23,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 19:06:23,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:06:23,587 INFO L87 Difference]: Start difference. First operand 1126 states and 2014 transitions. Second operand 5 states. [2021-01-06 19:06:23,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:06:23,743 INFO L93 Difference]: Finished difference Result 2142 states and 3820 transitions. [2021-01-06 19:06:23,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 19:06:23,744 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 93 [2021-01-06 19:06:23,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:06:23,752 INFO L225 Difference]: With dead ends: 2142 [2021-01-06 19:06:23,752 INFO L226 Difference]: Without dead ends: 1263 [2021-01-06 19:06:23,754 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-01-06 19:06:23,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1263 states. [2021-01-06 19:06:23,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1263 to 1126. [2021-01-06 19:06:23,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1126 states. [2021-01-06 19:06:23,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1126 states to 1126 states and 2012 transitions. [2021-01-06 19:06:23,855 INFO L78 Accepts]: Start accepts. Automaton has 1126 states and 2012 transitions. Word has length 93 [2021-01-06 19:06:23,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:06:23,855 INFO L481 AbstractCegarLoop]: Abstraction has 1126 states and 2012 transitions. [2021-01-06 19:06:23,855 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 19:06:23,855 INFO L276 IsEmpty]: Start isEmpty. Operand 1126 states and 2012 transitions. [2021-01-06 19:06:23,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-01-06 19:06:23,858 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:06:23,859 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:06:23,859 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-01-06 19:06:23,859 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:06:23,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:06:23,860 INFO L82 PathProgramCache]: Analyzing trace with hash 2132124739, now seen corresponding path program 1 times [2021-01-06 19:06:23,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:06:23,860 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348505852] [2021-01-06 19:06:23,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:06:23,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:06:23,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:06:23,930 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348505852] [2021-01-06 19:06:23,930 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:06:23,931 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:06:23,931 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537179809] [2021-01-06 19:06:23,931 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:06:23,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:06:23,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:06:23,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:06:23,932 INFO L87 Difference]: Start difference. First operand 1126 states and 2012 transitions. Second operand 3 states. [2021-01-06 19:06:24,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:06:24,069 INFO L93 Difference]: Finished difference Result 3016 states and 5415 transitions. [2021-01-06 19:06:24,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:06:24,070 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 93 [2021-01-06 19:06:24,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:06:24,082 INFO L225 Difference]: With dead ends: 3016 [2021-01-06 19:06:24,082 INFO L226 Difference]: Without dead ends: 1987 [2021-01-06 19:06:24,085 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:06:24,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1987 states. [2021-01-06 19:06:24,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1987 to 1850. [2021-01-06 19:06:24,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1850 states. [2021-01-06 19:06:24,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1850 states to 1850 states and 3331 transitions. [2021-01-06 19:06:24,216 INFO L78 Accepts]: Start accepts. Automaton has 1850 states and 3331 transitions. Word has length 93 [2021-01-06 19:06:24,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:06:24,217 INFO L481 AbstractCegarLoop]: Abstraction has 1850 states and 3331 transitions. [2021-01-06 19:06:24,217 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:06:24,217 INFO L276 IsEmpty]: Start isEmpty. Operand 1850 states and 3331 transitions. [2021-01-06 19:06:24,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-01-06 19:06:24,221 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:06:24,222 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:06:24,222 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-01-06 19:06:24,223 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:06:24,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:06:24,224 INFO L82 PathProgramCache]: Analyzing trace with hash -555911114, now seen corresponding path program 1 times [2021-01-06 19:06:24,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:06:24,224 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482753015] [2021-01-06 19:06:24,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:06:24,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:06:24,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:06:24,327 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482753015] [2021-01-06 19:06:24,327 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:06:24,327 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:06:24,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391154620] [2021-01-06 19:06:24,330 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:06:24,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:06:24,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:06:24,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:06:24,331 INFO L87 Difference]: Start difference. First operand 1850 states and 3331 transitions. Second operand 3 states. [2021-01-06 19:06:24,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:06:24,531 INFO L93 Difference]: Finished difference Result 4924 states and 8891 transitions. [2021-01-06 19:06:24,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:06:24,532 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 94 [2021-01-06 19:06:24,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:06:24,561 INFO L225 Difference]: With dead ends: 4924 [2021-01-06 19:06:24,561 INFO L226 Difference]: Without dead ends: 3205 [2021-01-06 19:06:24,567 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:06:24,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3205 states. [2021-01-06 19:06:24,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3205 to 3068. [2021-01-06 19:06:24,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3068 states. [2021-01-06 19:06:24,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3068 states to 3068 states and 5544 transitions. [2021-01-06 19:06:24,932 INFO L78 Accepts]: Start accepts. Automaton has 3068 states and 5544 transitions. Word has length 94 [2021-01-06 19:06:24,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:06:24,932 INFO L481 AbstractCegarLoop]: Abstraction has 3068 states and 5544 transitions. [2021-01-06 19:06:24,932 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:06:24,933 INFO L276 IsEmpty]: Start isEmpty. Operand 3068 states and 5544 transitions. [2021-01-06 19:06:24,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-01-06 19:06:24,950 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:06:24,950 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:06:24,950 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-01-06 19:06:24,951 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:06:24,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:06:24,952 INFO L82 PathProgramCache]: Analyzing trace with hash 109527380, now seen corresponding path program 1 times [2021-01-06 19:06:24,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:06:24,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116307343] [2021-01-06 19:06:24,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:06:24,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:06:25,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:06:25,070 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116307343] [2021-01-06 19:06:25,070 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:06:25,070 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:06:25,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505895124] [2021-01-06 19:06:25,071 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:06:25,072 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:06:25,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:06:25,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:06:25,073 INFO L87 Difference]: Start difference. First operand 3068 states and 5544 transitions. Second operand 3 states. [2021-01-06 19:06:25,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:06:25,467 INFO L93 Difference]: Finished difference Result 8294 states and 15013 transitions. [2021-01-06 19:06:25,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:06:25,467 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 95 [2021-01-06 19:06:25,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:06:25,502 INFO L225 Difference]: With dead ends: 8294 [2021-01-06 19:06:25,502 INFO L226 Difference]: Without dead ends: 5391 [2021-01-06 19:06:25,511 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:06:25,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5391 states. [2021-01-06 19:06:25,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5391 to 5254. [2021-01-06 19:06:25,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5254 states. [2021-01-06 19:06:25,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5254 states to 5254 states and 9505 transitions. [2021-01-06 19:06:25,965 INFO L78 Accepts]: Start accepts. Automaton has 5254 states and 9505 transitions. Word has length 95 [2021-01-06 19:06:25,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:06:25,966 INFO L481 AbstractCegarLoop]: Abstraction has 5254 states and 9505 transitions. [2021-01-06 19:06:25,966 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:06:25,966 INFO L276 IsEmpty]: Start isEmpty. Operand 5254 states and 9505 transitions. [2021-01-06 19:06:25,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-01-06 19:06:25,982 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:06:25,983 INFO L422 BasicCegarLoop]: trace histogram [3, 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] [2021-01-06 19:06:25,983 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-01-06 19:06:25,983 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:06:25,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:06:25,984 INFO L82 PathProgramCache]: Analyzing trace with hash 1824711800, now seen corresponding path program 1 times [2021-01-06 19:06:25,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:06:25,984 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732644852] [2021-01-06 19:06:25,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:06:26,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:06:26,080 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-01-06 19:06:26,080 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732644852] [2021-01-06 19:06:26,081 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:06:26,081 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 19:06:26,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559585636] [2021-01-06 19:06:26,082 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 19:06:26,082 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:06:26,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 19:06:26,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:06:26,083 INFO L87 Difference]: Start difference. First operand 5254 states and 9505 transitions. Second operand 5 states. [2021-01-06 19:06:26,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:06:26,990 INFO L93 Difference]: Finished difference Result 14981 states and 27132 transitions. [2021-01-06 19:06:26,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 19:06:26,990 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 96 [2021-01-06 19:06:26,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:06:27,092 INFO L225 Difference]: With dead ends: 14981 [2021-01-06 19:06:27,092 INFO L226 Difference]: Without dead ends: 9974 [2021-01-06 19:06:27,100 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-01-06 19:06:27,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9974 states. [2021-01-06 19:06:27,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9974 to 5254. [2021-01-06 19:06:27,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5254 states. [2021-01-06 19:06:27,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5254 states to 5254 states and 9455 transitions. [2021-01-06 19:06:27,528 INFO L78 Accepts]: Start accepts. Automaton has 5254 states and 9455 transitions. Word has length 96 [2021-01-06 19:06:27,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:06:27,528 INFO L481 AbstractCegarLoop]: Abstraction has 5254 states and 9455 transitions. [2021-01-06 19:06:27,528 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 19:06:27,529 INFO L276 IsEmpty]: Start isEmpty. Operand 5254 states and 9455 transitions. [2021-01-06 19:06:27,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-01-06 19:06:27,539 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:06:27,540 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:06:27,540 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-01-06 19:06:27,540 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:06:27,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:06:27,541 INFO L82 PathProgramCache]: Analyzing trace with hash 1955812199, now seen corresponding path program 1 times [2021-01-06 19:06:27,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:06:27,541 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141171943] [2021-01-06 19:06:27,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:06:27,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:06:27,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:06:27,605 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141171943] [2021-01-06 19:06:27,605 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:06:27,605 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:06:27,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840335548] [2021-01-06 19:06:27,606 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:06:27,606 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:06:27,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:06:27,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:06:27,607 INFO L87 Difference]: Start difference. First operand 5254 states and 9455 transitions. Second operand 3 states. [2021-01-06 19:06:28,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:06:28,144 INFO L93 Difference]: Finished difference Result 15178 states and 27360 transitions. [2021-01-06 19:06:28,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:06:28,144 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 96 [2021-01-06 19:06:28,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:06:28,174 INFO L225 Difference]: With dead ends: 15178 [2021-01-06 19:06:28,174 INFO L226 Difference]: Without dead ends: 10097 [2021-01-06 19:06:28,184 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:06:28,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10097 states. [2021-01-06 19:06:28,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10097 to 9960. [2021-01-06 19:06:28,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9960 states. [2021-01-06 19:06:28,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9960 states to 9960 states and 17936 transitions. [2021-01-06 19:06:28,956 INFO L78 Accepts]: Start accepts. Automaton has 9960 states and 17936 transitions. Word has length 96 [2021-01-06 19:06:28,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:06:28,956 INFO L481 AbstractCegarLoop]: Abstraction has 9960 states and 17936 transitions. [2021-01-06 19:06:28,957 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:06:28,957 INFO L276 IsEmpty]: Start isEmpty. Operand 9960 states and 17936 transitions. [2021-01-06 19:06:28,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-01-06 19:06:28,976 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:06:28,976 INFO L422 BasicCegarLoop]: trace histogram [3, 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] [2021-01-06 19:06:28,977 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-01-06 19:06:28,977 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:06:28,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:06:28,978 INFO L82 PathProgramCache]: Analyzing trace with hash 395041395, now seen corresponding path program 1 times [2021-01-06 19:06:28,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:06:28,978 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905284334] [2021-01-06 19:06:28,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:06:29,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:06:29,253 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-01-06 19:06:29,255 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905284334] [2021-01-06 19:06:29,255 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:06:29,255 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-06 19:06:29,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010733454] [2021-01-06 19:06:29,256 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 19:06:29,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:06:29,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 19:06:29,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-01-06 19:06:29,257 INFO L87 Difference]: Start difference. First operand 9960 states and 17936 transitions. Second operand 9 states. [2021-01-06 19:06:31,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:06:31,307 INFO L93 Difference]: Finished difference Result 20425 states and 36654 transitions. [2021-01-06 19:06:31,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-01-06 19:06:31,308 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 97 [2021-01-06 19:06:31,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:06:31,369 INFO L225 Difference]: With dead ends: 20425 [2021-01-06 19:06:31,369 INFO L226 Difference]: Without dead ends: 20308 [2021-01-06 19:06:31,378 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=158, Invalid=304, Unknown=0, NotChecked=0, Total=462 [2021-01-06 19:06:31,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20308 states. [2021-01-06 19:06:32,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20308 to 19721. [2021-01-06 19:06:32,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19721 states. [2021-01-06 19:06:32,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19721 states to 19721 states and 35538 transitions. [2021-01-06 19:06:32,742 INFO L78 Accepts]: Start accepts. Automaton has 19721 states and 35538 transitions. Word has length 97 [2021-01-06 19:06:32,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:06:32,743 INFO L481 AbstractCegarLoop]: Abstraction has 19721 states and 35538 transitions. [2021-01-06 19:06:32,743 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 19:06:32,743 INFO L276 IsEmpty]: Start isEmpty. Operand 19721 states and 35538 transitions. [2021-01-06 19:06:32,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-01-06 19:06:32,781 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:06:32,782 INFO L422 BasicCegarLoop]: trace histogram [3, 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] [2021-01-06 19:06:32,782 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-01-06 19:06:32,782 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:06:32,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:06:32,783 INFO L82 PathProgramCache]: Analyzing trace with hash -534947137, now seen corresponding path program 1 times [2021-01-06 19:06:32,783 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:06:32,783 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860887951] [2021-01-06 19:06:32,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:06:32,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:06:32,861 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-01-06 19:06:32,862 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860887951] [2021-01-06 19:06:32,862 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:06:32,862 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:06:32,862 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231721790] [2021-01-06 19:06:32,864 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:06:32,864 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:06:32,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:06:32,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:06:32,865 INFO L87 Difference]: Start difference. First operand 19721 states and 35538 transitions. Second operand 4 states. [2021-01-06 19:06:33,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:06:33,941 INFO L93 Difference]: Finished difference Result 19924 states and 35860 transitions. [2021-01-06 19:06:33,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 19:06:33,941 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 98 [2021-01-06 19:06:33,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:06:34,005 INFO L225 Difference]: With dead ends: 19924 [2021-01-06 19:06:34,005 INFO L226 Difference]: Without dead ends: 19792 [2021-01-06 19:06:34,015 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:06:34,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19792 states. [2021-01-06 19:06:35,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19792 to 19720. [2021-01-06 19:06:35,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19720 states. [2021-01-06 19:06:35,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19720 states to 19720 states and 35534 transitions. [2021-01-06 19:06:35,264 INFO L78 Accepts]: Start accepts. Automaton has 19720 states and 35534 transitions. Word has length 98 [2021-01-06 19:06:35,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:06:35,265 INFO L481 AbstractCegarLoop]: Abstraction has 19720 states and 35534 transitions. [2021-01-06 19:06:35,265 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:06:35,265 INFO L276 IsEmpty]: Start isEmpty. Operand 19720 states and 35534 transitions. [2021-01-06 19:06:35,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-01-06 19:06:35,295 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:06:35,296 INFO L422 BasicCegarLoop]: trace histogram [3, 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] [2021-01-06 19:06:35,296 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-01-06 19:06:35,296 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:06:35,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:06:35,298 INFO L82 PathProgramCache]: Analyzing trace with hash 2064431701, now seen corresponding path program 1 times [2021-01-06 19:06:35,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:06:35,299 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664786742] [2021-01-06 19:06:35,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:06:35,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:06:35,416 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-01-06 19:06:35,417 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664786742] [2021-01-06 19:06:35,417 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:06:35,417 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-06 19:06:35,417 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495969980] [2021-01-06 19:06:35,418 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 19:06:35,418 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:06:35,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 19:06:35,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-06 19:06:35,419 INFO L87 Difference]: Start difference. First operand 19720 states and 35534 transitions. Second operand 6 states. [2021-01-06 19:06:36,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:06:36,490 INFO L93 Difference]: Finished difference Result 19946 states and 35893 transitions. [2021-01-06 19:06:36,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-06 19:06:36,491 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 99 [2021-01-06 19:06:36,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:06:36,541 INFO L225 Difference]: With dead ends: 19946 [2021-01-06 19:06:36,542 INFO L226 Difference]: Without dead ends: 19730 [2021-01-06 19:06:36,548 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-01-06 19:06:36,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19730 states. [2021-01-06 19:06:37,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19730 to 19708. [2021-01-06 19:06:37,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19708 states. [2021-01-06 19:06:37,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19708 states to 19708 states and 35507 transitions. [2021-01-06 19:06:37,586 INFO L78 Accepts]: Start accepts. Automaton has 19708 states and 35507 transitions. Word has length 99 [2021-01-06 19:06:37,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:06:37,586 INFO L481 AbstractCegarLoop]: Abstraction has 19708 states and 35507 transitions. [2021-01-06 19:06:37,587 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 19:06:37,587 INFO L276 IsEmpty]: Start isEmpty. Operand 19708 states and 35507 transitions. [2021-01-06 19:06:37,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-01-06 19:06:37,617 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:06:37,617 INFO L422 BasicCegarLoop]: trace histogram [3, 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] [2021-01-06 19:06:37,617 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-01-06 19:06:37,617 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:06:37,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:06:37,618 INFO L82 PathProgramCache]: Analyzing trace with hash -1335898615, now seen corresponding path program 1 times [2021-01-06 19:06:37,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:06:37,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917190073] [2021-01-06 19:06:37,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:06:37,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:06:37,765 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-01-06 19:06:37,766 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917190073] [2021-01-06 19:06:37,768 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:06:37,768 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-06 19:06:37,770 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895194461] [2021-01-06 19:06:37,770 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 19:06:37,770 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:06:37,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 19:06:37,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-01-06 19:06:37,772 INFO L87 Difference]: Start difference. First operand 19708 states and 35507 transitions. Second operand 9 states. [2021-01-06 19:06:39,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:06:39,982 INFO L93 Difference]: Finished difference Result 40071 states and 72020 transitions. [2021-01-06 19:06:39,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-01-06 19:06:39,982 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 99 [2021-01-06 19:06:39,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:06:40,061 INFO L225 Difference]: With dead ends: 40071 [2021-01-06 19:06:40,062 INFO L226 Difference]: Without dead ends: 39867 [2021-01-06 19:06:40,078 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=158, Unknown=0, NotChecked=0, Total=240 [2021-01-06 19:06:40,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39867 states. [2021-01-06 19:06:41,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39867 to 39137. [2021-01-06 19:06:41,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39137 states. [2021-01-06 19:06:41,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39137 states to 39137 states and 70539 transitions. [2021-01-06 19:06:41,940 INFO L78 Accepts]: Start accepts. Automaton has 39137 states and 70539 transitions. Word has length 99 [2021-01-06 19:06:41,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:06:41,940 INFO L481 AbstractCegarLoop]: Abstraction has 39137 states and 70539 transitions. [2021-01-06 19:06:41,940 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 19:06:41,940 INFO L276 IsEmpty]: Start isEmpty. Operand 39137 states and 70539 transitions. [2021-01-06 19:06:41,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-01-06 19:06:41,973 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:06:41,973 INFO L422 BasicCegarLoop]: trace histogram [3, 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] [2021-01-06 19:06:41,973 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-01-06 19:06:41,973 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:06:41,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:06:41,974 INFO L82 PathProgramCache]: Analyzing trace with hash -442412277, now seen corresponding path program 1 times [2021-01-06 19:06:41,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:06:41,974 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437633556] [2021-01-06 19:06:41,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:06:42,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:06:42,132 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-01-06 19:06:42,132 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437633556] [2021-01-06 19:06:42,132 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:06:42,133 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-01-06 19:06:42,133 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598796388] [2021-01-06 19:06:42,133 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-01-06 19:06:42,133 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:06:42,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-01-06 19:06:42,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-01-06 19:06:42,135 INFO L87 Difference]: Start difference. First operand 39137 states and 70539 transitions. Second operand 10 states. [2021-01-06 19:06:44,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:06:44,790 INFO L93 Difference]: Finished difference Result 41206 states and 73693 transitions. [2021-01-06 19:06:44,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-01-06 19:06:44,793 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 99 [2021-01-06 19:06:44,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:06:44,857 INFO L225 Difference]: With dead ends: 41206 [2021-01-06 19:06:44,857 INFO L226 Difference]: Without dead ends: 40935 [2021-01-06 19:06:44,867 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=262, Invalid=668, Unknown=0, NotChecked=0, Total=930 [2021-01-06 19:06:44,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40935 states. [2021-01-06 19:06:46,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40935 to 39161. [2021-01-06 19:06:46,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39161 states. [2021-01-06 19:06:46,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39161 states to 39161 states and 70571 transitions. [2021-01-06 19:06:46,753 INFO L78 Accepts]: Start accepts. Automaton has 39161 states and 70571 transitions. Word has length 99 [2021-01-06 19:06:46,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:06:46,754 INFO L481 AbstractCegarLoop]: Abstraction has 39161 states and 70571 transitions. [2021-01-06 19:06:46,754 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-01-06 19:06:46,754 INFO L276 IsEmpty]: Start isEmpty. Operand 39161 states and 70571 transitions. [2021-01-06 19:06:46,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-01-06 19:06:46,800 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:06:46,800 INFO L422 BasicCegarLoop]: trace histogram [3, 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] [2021-01-06 19:06:46,801 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-01-06 19:06:46,801 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:06:46,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:06:46,801 INFO L82 PathProgramCache]: Analyzing trace with hash -956910185, now seen corresponding path program 1 times [2021-01-06 19:06:46,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:06:46,802 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143826405] [2021-01-06 19:06:46,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:06:46,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:06:46,918 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-01-06 19:06:46,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143826405] [2021-01-06 19:06:46,919 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:06:46,919 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-06 19:06:46,919 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790247206] [2021-01-06 19:06:46,919 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-06 19:06:46,920 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:06:46,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-06 19:06:46,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-01-06 19:06:46,924 INFO L87 Difference]: Start difference. First operand 39161 states and 70571 transitions. Second operand 8 states. [2021-01-06 19:06:48,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:06:48,830 INFO L93 Difference]: Finished difference Result 39653 states and 71331 transitions. [2021-01-06 19:06:48,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-06 19:06:48,830 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 100 [2021-01-06 19:06:48,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:06:48,895 INFO L225 Difference]: With dead ends: 39653 [2021-01-06 19:06:48,895 INFO L226 Difference]: Without dead ends: 39230 [2021-01-06 19:06:48,904 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2021-01-06 19:06:48,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39230 states. [2021-01-06 19:06:50,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39230 to 39118. [2021-01-06 19:06:50,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39118 states. [2021-01-06 19:06:50,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39118 states to 39118 states and 70495 transitions. [2021-01-06 19:06:50,762 INFO L78 Accepts]: Start accepts. Automaton has 39118 states and 70495 transitions. Word has length 100 [2021-01-06 19:06:50,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:06:50,762 INFO L481 AbstractCegarLoop]: Abstraction has 39118 states and 70495 transitions. [2021-01-06 19:06:50,762 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-01-06 19:06:50,762 INFO L276 IsEmpty]: Start isEmpty. Operand 39118 states and 70495 transitions. [2021-01-06 19:06:50,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-01-06 19:06:50,803 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:06:50,803 INFO L422 BasicCegarLoop]: trace histogram [3, 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] [2021-01-06 19:06:50,804 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-01-06 19:06:50,804 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:06:50,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:06:50,804 INFO L82 PathProgramCache]: Analyzing trace with hash 438038369, now seen corresponding path program 1 times [2021-01-06 19:06:50,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:06:50,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139126210] [2021-01-06 19:06:50,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:06:50,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:06:50,979 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-01-06 19:06:50,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139126210] [2021-01-06 19:06:50,980 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:06:50,980 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-01-06 19:06:50,980 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351810862] [2021-01-06 19:06:50,981 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-01-06 19:06:50,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:06:50,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-01-06 19:06:50,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-01-06 19:06:50,982 INFO L87 Difference]: Start difference. First operand 39118 states and 70495 transitions. Second operand 11 states. [2021-01-06 19:06:53,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:06:53,216 INFO L93 Difference]: Finished difference Result 39677 states and 71329 transitions. [2021-01-06 19:06:53,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-01-06 19:06:53,217 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 100 [2021-01-06 19:06:53,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:06:53,273 INFO L225 Difference]: With dead ends: 39677 [2021-01-06 19:06:53,274 INFO L226 Difference]: Without dead ends: 39498 [2021-01-06 19:06:53,282 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2021-01-06 19:06:53,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39498 states. [2021-01-06 19:06:54,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39498 to 39118. [2021-01-06 19:06:54,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39118 states. [2021-01-06 19:06:55,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39118 states to 39118 states and 70491 transitions. [2021-01-06 19:06:55,029 INFO L78 Accepts]: Start accepts. Automaton has 39118 states and 70491 transitions. Word has length 100 [2021-01-06 19:06:55,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:06:55,029 INFO L481 AbstractCegarLoop]: Abstraction has 39118 states and 70491 transitions. [2021-01-06 19:06:55,029 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-01-06 19:06:55,029 INFO L276 IsEmpty]: Start isEmpty. Operand 39118 states and 70491 transitions. [2021-01-06 19:06:55,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-01-06 19:06:55,062 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:06:55,062 INFO L422 BasicCegarLoop]: trace histogram [3, 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] [2021-01-06 19:06:55,062 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-01-06 19:06:55,063 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:06:55,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:06:55,063 INFO L82 PathProgramCache]: Analyzing trace with hash 324163279, now seen corresponding path program 1 times [2021-01-06 19:06:55,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:06:55,063 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424736407] [2021-01-06 19:06:55,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:06:55,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:06:55,173 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-01-06 19:06:55,174 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424736407] [2021-01-06 19:06:55,174 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:06:55,174 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-06 19:06:55,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912972722] [2021-01-06 19:06:55,175 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-06 19:06:55,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:06:55,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-06 19:06:55,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-01-06 19:06:55,176 INFO L87 Difference]: Start difference. First operand 39118 states and 70491 transitions. Second operand 8 states. [2021-01-06 19:06:56,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:06:56,929 INFO L93 Difference]: Finished difference Result 39185 states and 70587 transitions. [2021-01-06 19:06:56,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-06 19:06:56,933 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 101 [2021-01-06 19:06:56,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:06:56,992 INFO L225 Difference]: With dead ends: 39185 [2021-01-06 19:06:56,993 INFO L226 Difference]: Without dead ends: 39118 [2021-01-06 19:06:57,002 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-01-06 19:06:57,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39118 states. [2021-01-06 19:06:58,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39118 to 39118. [2021-01-06 19:06:58,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39118 states. [2021-01-06 19:06:59,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39118 states to 39118 states and 70487 transitions. [2021-01-06 19:06:59,090 INFO L78 Accepts]: Start accepts. Automaton has 39118 states and 70487 transitions. Word has length 101 [2021-01-06 19:06:59,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:06:59,090 INFO L481 AbstractCegarLoop]: Abstraction has 39118 states and 70487 transitions. [2021-01-06 19:06:59,090 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-01-06 19:06:59,090 INFO L276 IsEmpty]: Start isEmpty. Operand 39118 states and 70487 transitions. [2021-01-06 19:06:59,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-01-06 19:06:59,131 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:06:59,131 INFO L422 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:06:59,131 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-01-06 19:06:59,131 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:06:59,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:06:59,132 INFO L82 PathProgramCache]: Analyzing trace with hash 1475353155, now seen corresponding path program 1 times [2021-01-06 19:06:59,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:06:59,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150268878] [2021-01-06 19:06:59,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:06:59,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:06:59,227 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-01-06 19:06:59,227 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150268878] [2021-01-06 19:06:59,227 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:06:59,228 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:06:59,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90172553] [2021-01-06 19:06:59,228 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 19:06:59,228 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:06:59,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 19:06:59,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:06:59,229 INFO L87 Difference]: Start difference. First operand 39118 states and 70487 transitions. Second operand 5 states. [2021-01-06 19:07:02,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:07:02,340 INFO L93 Difference]: Finished difference Result 78003 states and 140526 transitions. [2021-01-06 19:07:02,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-06 19:07:02,340 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 118 [2021-01-06 19:07:02,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:07:02,483 INFO L225 Difference]: With dead ends: 78003 [2021-01-06 19:07:02,484 INFO L226 Difference]: Without dead ends: 77816 [2021-01-06 19:07:02,502 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-01-06 19:07:02,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77816 states. [2021-01-06 19:07:06,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77816 to 77633. [2021-01-06 19:07:06,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77633 states. [2021-01-06 19:07:06,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77633 states to 77633 states and 139966 transitions. [2021-01-06 19:07:06,136 INFO L78 Accepts]: Start accepts. Automaton has 77633 states and 139966 transitions. Word has length 118 [2021-01-06 19:07:06,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:07:06,137 INFO L481 AbstractCegarLoop]: Abstraction has 77633 states and 139966 transitions. [2021-01-06 19:07:06,137 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 19:07:06,137 INFO L276 IsEmpty]: Start isEmpty. Operand 77633 states and 139966 transitions. [2021-01-06 19:07:06,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-01-06 19:07:06,222 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:07:06,222 INFO L422 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:07:06,222 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-01-06 19:07:06,222 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:07:06,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:07:06,223 INFO L82 PathProgramCache]: Analyzing trace with hash -1054159924, now seen corresponding path program 1 times [2021-01-06 19:07:06,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:07:06,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628486810] [2021-01-06 19:07:06,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:07:06,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:07:06,380 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-01-06 19:07:06,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628486810] [2021-01-06 19:07:06,381 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:07:06,381 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-01-06 19:07:06,381 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465182662] [2021-01-06 19:07:06,382 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-01-06 19:07:06,382 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:07:06,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-01-06 19:07:06,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-01-06 19:07:06,383 INFO L87 Difference]: Start difference. First operand 77633 states and 139966 transitions. Second operand 10 states. [2021-01-06 19:07:10,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:07:10,140 INFO L93 Difference]: Finished difference Result 78021 states and 140542 transitions. [2021-01-06 19:07:10,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-01-06 19:07:10,141 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 119 [2021-01-06 19:07:10,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:07:10,259 INFO L225 Difference]: With dead ends: 78021 [2021-01-06 19:07:10,259 INFO L226 Difference]: Without dead ends: 77598 [2021-01-06 19:07:10,279 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=132, Invalid=288, Unknown=0, NotChecked=0, Total=420 [2021-01-06 19:07:10,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77598 states. [2021-01-06 19:07:13,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77598 to 77012. [2021-01-06 19:07:13,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77012 states. [2021-01-06 19:07:14,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77012 states to 77012 states and 138166 transitions. [2021-01-06 19:07:14,032 INFO L78 Accepts]: Start accepts. Automaton has 77012 states and 138166 transitions. Word has length 119 [2021-01-06 19:07:14,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:07:14,032 INFO L481 AbstractCegarLoop]: Abstraction has 77012 states and 138166 transitions. [2021-01-06 19:07:14,032 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-01-06 19:07:14,032 INFO L276 IsEmpty]: Start isEmpty. Operand 77012 states and 138166 transitions. [2021-01-06 19:07:14,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-01-06 19:07:14,117 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:07:14,118 INFO L422 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:07:14,118 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-01-06 19:07:14,118 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:07:14,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:07:14,118 INFO L82 PathProgramCache]: Analyzing trace with hash -639657416, now seen corresponding path program 1 times [2021-01-06 19:07:14,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:07:14,119 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203265031] [2021-01-06 19:07:14,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:07:14,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:07:14,296 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-01-06 19:07:14,296 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203265031] [2021-01-06 19:07:14,297 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:07:14,297 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:07:14,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682093219] [2021-01-06 19:07:14,297 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 19:07:14,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:07:14,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 19:07:14,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:07:14,298 INFO L87 Difference]: Start difference. First operand 77012 states and 138166 transitions. Second operand 5 states. [2021-01-06 19:07:17,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:07:17,763 INFO L93 Difference]: Finished difference Result 78356 states and 140138 transitions. [2021-01-06 19:07:17,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-06 19:07:17,764 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 124 [2021-01-06 19:07:17,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:07:17,879 INFO L225 Difference]: With dead ends: 78356 [2021-01-06 19:07:17,879 INFO L226 Difference]: Without dead ends: 78253 [2021-01-06 19:07:17,896 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-01-06 19:07:17,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78253 states. [2021-01-06 19:07:21,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78253 to 77244. [2021-01-06 19:07:21,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77244 states. [2021-01-06 19:07:21,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77244 states to 77244 states and 138522 transitions. [2021-01-06 19:07:21,496 INFO L78 Accepts]: Start accepts. Automaton has 77244 states and 138522 transitions. Word has length 124 [2021-01-06 19:07:21,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:07:21,496 INFO L481 AbstractCegarLoop]: Abstraction has 77244 states and 138522 transitions. [2021-01-06 19:07:21,496 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 19:07:21,496 INFO L276 IsEmpty]: Start isEmpty. Operand 77244 states and 138522 transitions. [2021-01-06 19:07:21,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-01-06 19:07:21,580 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:07:21,580 INFO L422 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:07:21,580 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-01-06 19:07:21,580 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:07:21,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:07:21,581 INFO L82 PathProgramCache]: Analyzing trace with hash 1175423058, now seen corresponding path program 1 times [2021-01-06 19:07:21,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:07:21,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213576013] [2021-01-06 19:07:21,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:07:21,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:07:22,200 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-01-06 19:07:22,201 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213576013] [2021-01-06 19:07:22,202 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:07:22,202 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-01-06 19:07:22,202 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326860787] [2021-01-06 19:07:22,203 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-01-06 19:07:22,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:07:22,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-01-06 19:07:22,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2021-01-06 19:07:22,204 INFO L87 Difference]: Start difference. First operand 77244 states and 138522 transitions. Second operand 15 states. [2021-01-06 19:07:26,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:07:26,441 INFO L93 Difference]: Finished difference Result 77589 states and 139024 transitions. [2021-01-06 19:07:26,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-01-06 19:07:26,441 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 125 [2021-01-06 19:07:26,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:07:26,564 INFO L225 Difference]: With dead ends: 77589 [2021-01-06 19:07:26,564 INFO L226 Difference]: Without dead ends: 77561 [2021-01-06 19:07:26,581 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=386, Invalid=1174, Unknown=0, NotChecked=0, Total=1560 [2021-01-06 19:07:26,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77561 states. [2021-01-06 19:07:29,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77561 to 76810. [2021-01-06 19:07:29,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76810 states. [2021-01-06 19:07:30,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76810 states to 76810 states and 137858 transitions. [2021-01-06 19:07:30,066 INFO L78 Accepts]: Start accepts. Automaton has 76810 states and 137858 transitions. Word has length 125 [2021-01-06 19:07:30,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:07:30,066 INFO L481 AbstractCegarLoop]: Abstraction has 76810 states and 137858 transitions. [2021-01-06 19:07:30,066 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2021-01-06 19:07:30,067 INFO L276 IsEmpty]: Start isEmpty. Operand 76810 states and 137858 transitions. [2021-01-06 19:07:30,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-01-06 19:07:30,157 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:07:30,157 INFO L422 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:07:30,157 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-01-06 19:07:30,157 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:07:30,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:07:30,158 INFO L82 PathProgramCache]: Analyzing trace with hash -1429512234, now seen corresponding path program 1 times [2021-01-06 19:07:30,158 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:07:30,158 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535294063] [2021-01-06 19:07:30,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:07:30,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:07:30,396 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-01-06 19:07:30,397 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535294063] [2021-01-06 19:07:30,397 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:07:30,397 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-01-06 19:07:30,398 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369161422] [2021-01-06 19:07:30,398 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-01-06 19:07:30,398 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:07:30,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-01-06 19:07:30,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2021-01-06 19:07:30,399 INFO L87 Difference]: Start difference. First operand 76810 states and 137858 transitions. Second operand 14 states. [2021-01-06 19:07:34,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:07:34,721 INFO L93 Difference]: Finished difference Result 76954 states and 138071 transitions. [2021-01-06 19:07:34,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-01-06 19:07:34,726 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 126 [2021-01-06 19:07:34,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:07:34,834 INFO L225 Difference]: With dead ends: 76954 [2021-01-06 19:07:34,835 INFO L226 Difference]: Without dead ends: 76929 [2021-01-06 19:07:34,853 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=365, Invalid=1041, Unknown=0, NotChecked=0, Total=1406 [2021-01-06 19:07:34,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76929 states. [2021-01-06 19:07:38,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76929 to 76807. [2021-01-06 19:07:38,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76807 states. [2021-01-06 19:07:38,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76807 states to 76807 states and 137851 transitions. [2021-01-06 19:07:38,404 INFO L78 Accepts]: Start accepts. Automaton has 76807 states and 137851 transitions. Word has length 126 [2021-01-06 19:07:38,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:07:38,404 INFO L481 AbstractCegarLoop]: Abstraction has 76807 states and 137851 transitions. [2021-01-06 19:07:38,404 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2021-01-06 19:07:38,404 INFO L276 IsEmpty]: Start isEmpty. Operand 76807 states and 137851 transitions. [2021-01-06 19:07:38,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-01-06 19:07:38,488 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:07:38,488 INFO L422 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:07:38,488 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-01-06 19:07:38,488 INFO L429 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:07:38,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:07:38,489 INFO L82 PathProgramCache]: Analyzing trace with hash -1206038454, now seen corresponding path program 1 times [2021-01-06 19:07:38,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:07:38,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474568606] [2021-01-06 19:07:38,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:07:38,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:07:38,858 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-01-06 19:07:38,859 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474568606] [2021-01-06 19:07:38,859 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:07:38,859 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-06 19:07:38,859 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342555870] [2021-01-06 19:07:38,860 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 19:07:38,860 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:07:38,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 19:07:38,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-06 19:07:38,860 INFO L87 Difference]: Start difference. First operand 76807 states and 137851 transitions. Second operand 7 states. [2021-01-06 19:07:45,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:07:45,101 INFO L93 Difference]: Finished difference Result 153775 states and 275946 transitions. [2021-01-06 19:07:45,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-06 19:07:45,102 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 126 [2021-01-06 19:07:45,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:07:45,555 INFO L225 Difference]: With dead ends: 153775 [2021-01-06 19:07:45,555 INFO L226 Difference]: Without dead ends: 153753 [2021-01-06 19:07:45,588 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2021-01-06 19:07:45,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153753 states.