/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/ldv-consumption/linux-3.8-rc1-32_7a-drivers--scsi--st.ko-ldv_main0.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 13:04:42,539 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 13:04:42,542 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 13:04:42,579 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 13:04:42,579 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 13:04:42,581 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 13:04:42,583 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 13:04:42,585 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 13:04:42,588 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 13:04:42,589 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 13:04:42,591 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 13:04:42,592 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 13:04:42,593 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 13:04:42,594 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 13:04:42,596 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 13:04:42,611 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 13:04:42,612 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 13:04:42,614 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 13:04:42,616 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 13:04:42,618 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 13:04:42,620 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 13:04:42,622 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 13:04:42,624 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 13:04:42,625 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 13:04:42,628 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 13:04:42,628 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 13:04:42,628 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 13:04:42,630 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 13:04:42,630 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 13:04:42,631 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 13:04:42,632 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 13:04:42,633 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 13:04:42,634 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 13:04:42,635 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 13:04:42,636 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 13:04:42,636 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 13:04:42,637 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 13:04:42,638 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 13:04:42,638 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 13:04:42,639 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 13:04:42,640 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 13:04:42,641 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 13:04:42,671 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 13:04:42,671 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 13:04:42,673 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 13:04:42,673 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 13:04:42,673 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 13:04:42,674 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 13:04:42,674 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 13:04:42,674 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 13:04:42,674 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 13:04:42,675 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 13:04:42,675 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 13:04:42,675 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 13:04:42,675 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 13:04:42,676 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 13:04:42,676 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 13:04:42,676 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 13:04:42,676 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 13:04:42,677 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 13:04:42,677 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 13:04:42,677 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 13:04:42,677 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 13:04:42,678 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 13:04:42,678 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 13:04:42,678 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 13:04:42,678 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 13:04:42,679 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 13:04:43,112 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 13:04:43,168 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 13:04:43,172 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 13:04:43,174 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 13:04:43,175 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 13:04:43,176 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--scsi--st.ko-ldv_main0.cil.out.i [2020-12-22 13:04:43,256 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df7193e0d/32b240f37b1641288edb454d9f08706e/FLAG070983e59 [2020-12-22 13:04:44,451 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 13:04:44,451 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--scsi--st.ko-ldv_main0.cil.out.i [2020-12-22 13:04:44,524 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df7193e0d/32b240f37b1641288edb454d9f08706e/FLAG070983e59 [2020-12-22 13:04:44,802 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df7193e0d/32b240f37b1641288edb454d9f08706e [2020-12-22 13:04:44,807 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 13:04:44,811 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 13:04:44,815 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 13:04:44,816 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 13:04:44,821 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 13:04:44,822 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:04:44" (1/1) ... [2020-12-22 13:04:44,825 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5624b461 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:04:44, skipping insertion in model container [2020-12-22 13:04:44,826 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:04:44" (1/1) ... [2020-12-22 13:04:44,837 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 13:04:45,062 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 13:04:47,708 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--scsi--st.ko-ldv_main0.cil.out.i[269371,269384] [2020-12-22 13:04:47,834 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 13:04:47,870 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 13:04:48,501 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--scsi--st.ko-ldv_main0.cil.out.i[269371,269384] [2020-12-22 13:04:48,528 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 13:04:49,033 INFO L208 MainTranslator]: Completed translation [2020-12-22 13:04:49,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:04:49 WrapperNode [2020-12-22 13:04:49,034 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 13:04:49,036 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 13:04:49,036 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 13:04:49,036 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 13:04:49,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:04:49" (1/1) ... [2020-12-22 13:04:49,205 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:04:49" (1/1) ... [2020-12-22 13:04:51,566 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 13:04:51,575 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 13:04:51,575 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 13:04:51,575 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 13:04:51,597 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:04:49" (1/1) ... [2020-12-22 13:04:51,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:04:49" (1/1) ... [2020-12-22 13:04:52,245 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:04:49" (1/1) ... [2020-12-22 13:04:52,245 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:04:49" (1/1) ... [2020-12-22 13:04:54,032 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:04:49" (1/1) ... [2020-12-22 13:04:54,352 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:04:49" (1/1) ... [2020-12-22 13:04:54,691 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:04:49" (1/1) ... [2020-12-22 13:04:55,016 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 13:04:55,017 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 13:04:55,017 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 13:04:55,017 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 13:04:55,018 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:04:49" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-12-22 13:04:55,124 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2020-12-22 13:04:55,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 13:04:55,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 13:04:55,124 INFO L130 BoogieDeclarations]: Found specification of procedure st_int_ioctl [2020-12-22 13:04:55,124 INFO L138 BoogieDeclarations]: Found implementation of procedure st_int_ioctl [2020-12-22 13:04:55,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 13:04:55,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 13:04:55,125 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2020-12-22 13:04:55,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 13:04:55,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 13:04:55,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 13:04:55,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 13:04:55,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 13:04:55,126 INFO L130 BoogieDeclarations]: Found specification of procedure enlarge_buffer [2020-12-22 13:04:55,126 INFO L138 BoogieDeclarations]: Found implementation of procedure enlarge_buffer [2020-12-22 13:04:55,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 13:04:55,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 13:04:55,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 13:04:55,127 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2020-12-22 13:04:55,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 13:04:55,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 13:04:55,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 13:06:12,283 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 13:06:12,283 INFO L299 CfgBuilder]: Removed 7466 assume(true) statements. [2020-12-22 13:06:12,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:06:12 BoogieIcfgContainer [2020-12-22 13:06:12,297 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 13:06:12,299 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 13:06:12,299 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 13:06:12,303 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 13:06:12,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 01:04:44" (1/3) ... [2020-12-22 13:06:12,304 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4454cd8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:06:12, skipping insertion in model container [2020-12-22 13:06:12,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:04:49" (2/3) ... [2020-12-22 13:06:12,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4454cd8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:06:12, skipping insertion in model container [2020-12-22 13:06:12,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:06:12" (3/3) ... [2020-12-22 13:06:12,307 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--scsi--st.ko-ldv_main0.cil.out.i [2020-12-22 13:06:12,314 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 13:06:12,324 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 21 error locations. [2020-12-22 13:06:12,345 INFO L253 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2020-12-22 13:06:12,412 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 13:06:12,412 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 13:06:12,413 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 13:06:12,413 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 13:06:12,413 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 13:06:12,413 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 13:06:12,413 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 13:06:12,413 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 13:06:12,563 INFO L276 IsEmpty]: Start isEmpty. Operand 11083 states. [2020-12-22 13:06:12,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-22 13:06:12,568 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:06:12,569 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:06:12,569 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:06:12,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:06:12,576 INFO L82 PathProgramCache]: Analyzing trace with hash -576168751, now seen corresponding path program 1 times [2020-12-22 13:06:12,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:06:12,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771062599] [2020-12-22 13:06:12,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:06:13,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:06:13,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:06:13,435 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771062599] [2020-12-22 13:06:13,436 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:06:13,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 13:06:13,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817642050] [2020-12-22 13:06:13,444 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:06:13,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:06:13,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:06:13,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:06:13,469 INFO L87 Difference]: Start difference. First operand 11083 states. Second operand 3 states. [2020-12-22 13:06:14,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:06:14,152 INFO L93 Difference]: Finished difference Result 22162 states and 33116 transitions. [2020-12-22 13:06:14,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:06:14,156 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-12-22 13:06:14,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:06:14,250 INFO L225 Difference]: With dead ends: 22162 [2020-12-22 13:06:14,250 INFO L226 Difference]: Without dead ends: 11079 [2020-12-22 13:06:14,494 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:06:14,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11079 states. [2020-12-22 13:06:14,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11079 to 11079. [2020-12-22 13:06:14,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11079 states. [2020-12-22 13:06:15,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11079 states to 11079 states and 16313 transitions. [2020-12-22 13:06:15,043 INFO L78 Accepts]: Start accepts. Automaton has 11079 states and 16313 transitions. Word has length 12 [2020-12-22 13:06:15,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:06:15,044 INFO L481 AbstractCegarLoop]: Abstraction has 11079 states and 16313 transitions. [2020-12-22 13:06:15,044 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:06:15,045 INFO L276 IsEmpty]: Start isEmpty. Operand 11079 states and 16313 transitions. [2020-12-22 13:06:15,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-22 13:06:15,046 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:06:15,047 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:06:15,047 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 13:06:15,048 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:06:15,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:06:15,049 INFO L82 PathProgramCache]: Analyzing trace with hash 103889619, now seen corresponding path program 1 times [2020-12-22 13:06:15,050 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:06:15,050 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691657952] [2020-12-22 13:06:15,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:06:15,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:06:15,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:06:15,605 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691657952] [2020-12-22 13:06:15,606 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:06:15,606 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:06:15,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792447564] [2020-12-22 13:06:15,609 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:06:15,609 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:06:15,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:06:15,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:06:15,611 INFO L87 Difference]: Start difference. First operand 11079 states and 16313 transitions. Second operand 3 states. [2020-12-22 13:06:18,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:06:18,179 INFO L93 Difference]: Finished difference Result 11079 states and 16313 transitions. [2020-12-22 13:06:18,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:06:18,180 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-12-22 13:06:18,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:06:18,258 INFO L225 Difference]: With dead ends: 11079 [2020-12-22 13:06:18,259 INFO L226 Difference]: Without dead ends: 11077 [2020-12-22 13:06:18,267 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 [2020-12-22 13:06:18,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11077 states. [2020-12-22 13:06:18,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11077 to 11077. [2020-12-22 13:06:18,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11077 states. [2020-12-22 13:06:18,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11077 states to 11077 states and 16311 transitions. [2020-12-22 13:06:18,787 INFO L78 Accepts]: Start accepts. Automaton has 11077 states and 16311 transitions. Word has length 12 [2020-12-22 13:06:18,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:06:18,788 INFO L481 AbstractCegarLoop]: Abstraction has 11077 states and 16311 transitions. [2020-12-22 13:06:18,788 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:06:18,788 INFO L276 IsEmpty]: Start isEmpty. Operand 11077 states and 16311 transitions. [2020-12-22 13:06:18,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-22 13:06:18,789 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:06:18,789 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:06:18,789 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 13:06:18,790 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:06:18,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:06:18,790 INFO L82 PathProgramCache]: Analyzing trace with hash -1074350623, now seen corresponding path program 1 times [2020-12-22 13:06:18,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:06:18,791 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930536085] [2020-12-22 13:06:18,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:06:18,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:06:19,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:06:19,056 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930536085] [2020-12-22 13:06:19,056 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:06:19,057 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:06:19,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238995907] [2020-12-22 13:06:19,062 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:06:19,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:06:19,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:06:19,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:06:19,068 INFO L87 Difference]: Start difference. First operand 11077 states and 16311 transitions. Second operand 3 states. [2020-12-22 13:06:22,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:06:22,365 INFO L93 Difference]: Finished difference Result 33119 states and 48795 transitions. [2020-12-22 13:06:22,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:06:22,365 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-12-22 13:06:22,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:06:22,481 INFO L225 Difference]: With dead ends: 33119 [2020-12-22 13:06:22,481 INFO L226 Difference]: Without dead ends: 22074 [2020-12-22 13:06:22,526 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 [2020-12-22 13:06:22,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22074 states. [2020-12-22 13:06:23,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22074 to 22046. [2020-12-22 13:06:23,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22046 states. [2020-12-22 13:06:23,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22046 states to 22046 states and 32504 transitions. [2020-12-22 13:06:23,533 INFO L78 Accepts]: Start accepts. Automaton has 22046 states and 32504 transitions. Word has length 13 [2020-12-22 13:06:23,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:06:23,534 INFO L481 AbstractCegarLoop]: Abstraction has 22046 states and 32504 transitions. [2020-12-22 13:06:23,534 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:06:23,534 INFO L276 IsEmpty]: Start isEmpty. Operand 22046 states and 32504 transitions. [2020-12-22 13:06:23,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-22 13:06:23,535 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:06:23,535 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:06:23,536 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 13:06:23,536 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:06:23,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:06:23,537 INFO L82 PathProgramCache]: Analyzing trace with hash 1054907549, now seen corresponding path program 1 times [2020-12-22 13:06:23,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:06:23,538 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831647883] [2020-12-22 13:06:23,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:06:23,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:06:23,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:06:23,824 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831647883] [2020-12-22 13:06:23,826 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:06:23,826 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:06:23,826 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040239899] [2020-12-22 13:06:23,827 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:06:23,827 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:06:23,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:06:23,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:06:23,829 INFO L87 Difference]: Start difference. First operand 22046 states and 32504 transitions. Second operand 3 states. [2020-12-22 13:06:26,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:06:26,659 INFO L93 Difference]: Finished difference Result 22046 states and 32504 transitions. [2020-12-22 13:06:26,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:06:26,661 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-12-22 13:06:26,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:06:26,735 INFO L225 Difference]: With dead ends: 22046 [2020-12-22 13:06:26,735 INFO L226 Difference]: Without dead ends: 22044 [2020-12-22 13:06:26,747 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 [2020-12-22 13:06:26,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22044 states. [2020-12-22 13:06:27,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22044 to 22044. [2020-12-22 13:06:27,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22044 states. [2020-12-22 13:06:27,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22044 states to 22044 states and 32502 transitions. [2020-12-22 13:06:27,647 INFO L78 Accepts]: Start accepts. Automaton has 22044 states and 32502 transitions. Word has length 14 [2020-12-22 13:06:27,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:06:27,647 INFO L481 AbstractCegarLoop]: Abstraction has 22044 states and 32502 transitions. [2020-12-22 13:06:27,647 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:06:27,647 INFO L276 IsEmpty]: Start isEmpty. Operand 22044 states and 32502 transitions. [2020-12-22 13:06:27,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-22 13:06:27,648 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:06:27,648 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:06:27,649 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 13:06:27,649 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:06:27,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:06:27,649 INFO L82 PathProgramCache]: Analyzing trace with hash -1657565845, now seen corresponding path program 1 times [2020-12-22 13:06:27,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:06:27,650 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489382275] [2020-12-22 13:06:27,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:06:27,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:06:27,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:06:27,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489382275] [2020-12-22 13:06:27,876 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:06:27,877 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:06:27,877 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110091315] [2020-12-22 13:06:27,877 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:06:27,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:06:27,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:06:27,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:06:27,879 INFO L87 Difference]: Start difference. First operand 22044 states and 32502 transitions. Second operand 3 states. [2020-12-22 13:06:30,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:06:30,733 INFO L93 Difference]: Finished difference Result 22044 states and 32502 transitions. [2020-12-22 13:06:30,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:06:30,734 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2020-12-22 13:06:30,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:06:30,803 INFO L225 Difference]: With dead ends: 22044 [2020-12-22 13:06:30,803 INFO L226 Difference]: Without dead ends: 22020 [2020-12-22 13:06:30,812 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 [2020-12-22 13:06:30,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22020 states. [2020-12-22 13:06:31,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22020 to 22020. [2020-12-22 13:06:31,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22020 states. [2020-12-22 13:06:31,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22020 states to 22020 states and 32469 transitions. [2020-12-22 13:06:31,667 INFO L78 Accepts]: Start accepts. Automaton has 22020 states and 32469 transitions. Word has length 15 [2020-12-22 13:06:31,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:06:31,667 INFO L481 AbstractCegarLoop]: Abstraction has 22020 states and 32469 transitions. [2020-12-22 13:06:31,667 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:06:31,667 INFO L276 IsEmpty]: Start isEmpty. Operand 22020 states and 32469 transitions. [2020-12-22 13:06:31,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-12-22 13:06:31,672 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:06:31,672 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] [2020-12-22 13:06:31,672 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 13:06:31,673 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:06:31,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:06:31,673 INFO L82 PathProgramCache]: Analyzing trace with hash 1462807932, now seen corresponding path program 1 times [2020-12-22 13:06:31,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:06:31,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024597708] [2020-12-22 13:06:31,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:06:32,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:06:32,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:06:32,180 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024597708] [2020-12-22 13:06:32,181 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:06:32,181 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 13:06:32,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718361538] [2020-12-22 13:06:32,182 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 13:06:32,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:06:32,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 13:06:32,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 13:06:32,183 INFO L87 Difference]: Start difference. First operand 22020 states and 32469 transitions. Second operand 5 states. [2020-12-22 13:06:34,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:06:34,405 INFO L93 Difference]: Finished difference Result 38803 states and 56926 transitions. [2020-12-22 13:06:34,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 13:06:34,406 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2020-12-22 13:06:34,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:06:34,510 INFO L225 Difference]: With dead ends: 38803 [2020-12-22 13:06:34,511 INFO L226 Difference]: Without dead ends: 33397 [2020-12-22 13:06:34,542 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 13:06:34,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33397 states. [2020-12-22 13:06:35,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33397 to 16903. [2020-12-22 13:06:35,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16903 states. [2020-12-22 13:06:35,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16903 states to 16903 states and 24875 transitions. [2020-12-22 13:06:35,623 INFO L78 Accepts]: Start accepts. Automaton has 16903 states and 24875 transitions. Word has length 35 [2020-12-22 13:06:35,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:06:35,624 INFO L481 AbstractCegarLoop]: Abstraction has 16903 states and 24875 transitions. [2020-12-22 13:06:35,624 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 13:06:35,625 INFO L276 IsEmpty]: Start isEmpty. Operand 16903 states and 24875 transitions. [2020-12-22 13:06:35,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-12-22 13:06:35,627 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:06:35,627 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] [2020-12-22 13:06:35,627 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 13:06:35,627 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:06:35,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:06:35,628 INFO L82 PathProgramCache]: Analyzing trace with hash 1855834942, now seen corresponding path program 1 times [2020-12-22 13:06:35,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:06:35,629 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848449373] [2020-12-22 13:06:35,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:06:35,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:06:35,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:06:35,966 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848449373] [2020-12-22 13:06:35,967 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:06:35,967 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:06:35,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395412267] [2020-12-22 13:06:35,968 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:06:35,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:06:35,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:06:35,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:06:35,983 INFO L87 Difference]: Start difference. First operand 16903 states and 24875 transitions. Second operand 3 states. [2020-12-22 13:06:39,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:06:39,062 INFO L93 Difference]: Finished difference Result 33780 states and 49712 transitions. [2020-12-22 13:06:39,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:06:39,064 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35 [2020-12-22 13:06:39,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:06:39,123 INFO L225 Difference]: With dead ends: 33780 [2020-12-22 13:06:39,123 INFO L226 Difference]: Without dead ends: 16909 [2020-12-22 13:06:39,165 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 [2020-12-22 13:06:39,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16909 states. [2020-12-22 13:06:40,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16909 to 16899. [2020-12-22 13:06:40,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16899 states. [2020-12-22 13:06:40,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16899 states to 16899 states and 24866 transitions. [2020-12-22 13:06:40,305 INFO L78 Accepts]: Start accepts. Automaton has 16899 states and 24866 transitions. Word has length 35 [2020-12-22 13:06:40,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:06:40,306 INFO L481 AbstractCegarLoop]: Abstraction has 16899 states and 24866 transitions. [2020-12-22 13:06:40,306 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:06:40,306 INFO L276 IsEmpty]: Start isEmpty. Operand 16899 states and 24866 transitions. [2020-12-22 13:06:40,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-12-22 13:06:40,312 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:06:40,312 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] [2020-12-22 13:06:40,312 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 13:06:40,312 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:06:40,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:06:40,313 INFO L82 PathProgramCache]: Analyzing trace with hash 84168741, now seen corresponding path program 1 times [2020-12-22 13:06:40,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:06:40,314 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409846492] [2020-12-22 13:06:40,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:06:40,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:06:40,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:06:40,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409846492] [2020-12-22 13:06:40,618 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:06:40,618 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:06:40,618 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851573222] [2020-12-22 13:06:40,619 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:06:40,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:06:40,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:06:40,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:06:40,620 INFO L87 Difference]: Start difference. First operand 16899 states and 24866 transitions. Second operand 3 states. [2020-12-22 13:06:41,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:06:41,886 INFO L93 Difference]: Finished difference Result 42657 states and 62763 transitions. [2020-12-22 13:06:41,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:06:41,887 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2020-12-22 13:06:41,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:06:41,962 INFO L225 Difference]: With dead ends: 42657 [2020-12-22 13:06:41,963 INFO L226 Difference]: Without dead ends: 25790 [2020-12-22 13:06:41,991 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 [2020-12-22 13:06:42,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25790 states. [2020-12-22 13:06:43,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25790 to 25770. [2020-12-22 13:06:43,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25770 states. [2020-12-22 13:06:43,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25770 states to 25770 states and 37913 transitions. [2020-12-22 13:06:43,160 INFO L78 Accepts]: Start accepts. Automaton has 25770 states and 37913 transitions. Word has length 37 [2020-12-22 13:06:43,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:06:43,160 INFO L481 AbstractCegarLoop]: Abstraction has 25770 states and 37913 transitions. [2020-12-22 13:06:43,160 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:06:43,160 INFO L276 IsEmpty]: Start isEmpty. Operand 25770 states and 37913 transitions. [2020-12-22 13:06:43,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-12-22 13:06:43,161 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:06:43,162 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] [2020-12-22 13:06:43,162 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 13:06:43,162 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:06:43,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:06:43,163 INFO L82 PathProgramCache]: Analyzing trace with hash -1675455204, now seen corresponding path program 1 times [2020-12-22 13:06:43,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:06:43,163 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21381917] [2020-12-22 13:06:43,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:06:43,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:06:43,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:06:43,373 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21381917] [2020-12-22 13:06:43,374 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:06:43,374 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:06:43,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57664639] [2020-12-22 13:06:43,379 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:06:43,379 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:06:43,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:06:43,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:06:43,380 INFO L87 Difference]: Start difference. First operand 25770 states and 37913 transitions. Second operand 3 states. [2020-12-22 13:06:44,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:06:44,960 INFO L93 Difference]: Finished difference Result 75730 states and 111544 transitions. [2020-12-22 13:06:44,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:06:44,961 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 38 [2020-12-22 13:06:44,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:06:45,109 INFO L225 Difference]: With dead ends: 75730 [2020-12-22 13:06:45,109 INFO L226 Difference]: Without dead ends: 49992 [2020-12-22 13:06:45,174 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 [2020-12-22 13:06:45,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49992 states. [2020-12-22 13:06:47,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49992 to 47153. [2020-12-22 13:06:47,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47153 states. [2020-12-22 13:06:47,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47153 states to 47153 states and 69470 transitions. [2020-12-22 13:06:47,592 INFO L78 Accepts]: Start accepts. Automaton has 47153 states and 69470 transitions. Word has length 38 [2020-12-22 13:06:47,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:06:47,593 INFO L481 AbstractCegarLoop]: Abstraction has 47153 states and 69470 transitions. [2020-12-22 13:06:47,593 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:06:47,593 INFO L276 IsEmpty]: Start isEmpty. Operand 47153 states and 69470 transitions. [2020-12-22 13:06:47,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-12-22 13:06:47,595 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:06:47,595 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] [2020-12-22 13:06:47,596 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 13:06:47,598 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:06:47,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:06:47,600 INFO L82 PathProgramCache]: Analyzing trace with hash 1335611205, now seen corresponding path program 1 times [2020-12-22 13:06:47,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:06:47,600 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736736549] [2020-12-22 13:06:47,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:06:47,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:06:47,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:06:47,861 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736736549] [2020-12-22 13:06:47,861 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:06:47,861 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:06:47,862 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226658426] [2020-12-22 13:06:47,862 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:06:47,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:06:47,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:06:47,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:06:47,863 INFO L87 Difference]: Start difference. First operand 47153 states and 69470 transitions. Second operand 3 states. [2020-12-22 13:06:51,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:06:51,320 INFO L93 Difference]: Finished difference Result 47153 states and 69470 transitions. [2020-12-22 13:06:51,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:06:51,321 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 39 [2020-12-22 13:06:51,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:06:51,417 INFO L225 Difference]: With dead ends: 47153 [2020-12-22 13:06:51,417 INFO L226 Difference]: Without dead ends: 47143 [2020-12-22 13:06:51,437 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 [2020-12-22 13:06:51,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47143 states. [2020-12-22 13:06:53,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47143 to 47143. [2020-12-22 13:06:53,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47143 states. [2020-12-22 13:06:53,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47143 states to 47143 states and 69445 transitions. [2020-12-22 13:06:53,506 INFO L78 Accepts]: Start accepts. Automaton has 47143 states and 69445 transitions. Word has length 39 [2020-12-22 13:06:53,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:06:53,507 INFO L481 AbstractCegarLoop]: Abstraction has 47143 states and 69445 transitions. [2020-12-22 13:06:53,507 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:06:53,507 INFO L276 IsEmpty]: Start isEmpty. Operand 47143 states and 69445 transitions. [2020-12-22 13:06:53,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-12-22 13:06:53,509 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:06:53,509 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] [2020-12-22 13:06:53,509 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 13:06:53,510 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:06:53,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:06:53,511 INFO L82 PathProgramCache]: Analyzing trace with hash -1117073061, now seen corresponding path program 1 times [2020-12-22 13:06:53,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:06:53,511 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945155608] [2020-12-22 13:06:53,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:06:53,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:06:53,765 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:06:53,766 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945155608] [2020-12-22 13:06:53,766 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:06:53,767 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 13:06:53,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078023967] [2020-12-22 13:06:53,767 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 13:06:53,767 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:06:53,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 13:06:53,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 13:06:53,768 INFO L87 Difference]: Start difference. First operand 47143 states and 69445 transitions. Second operand 5 states. [2020-12-22 13:06:54,511 WARN L197 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-12-22 13:06:57,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:06:57,297 INFO L93 Difference]: Finished difference Result 99424 states and 145752 transitions. [2020-12-22 13:06:57,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 13:06:57,298 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 43 [2020-12-22 13:06:57,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:06:57,491 INFO L225 Difference]: With dead ends: 99424 [2020-12-22 13:06:57,492 INFO L226 Difference]: Without dead ends: 90392 [2020-12-22 13:06:57,536 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 13:06:57,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90392 states. [2020-12-22 13:07:00,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90392 to 47139. [2020-12-22 13:07:00,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47139 states. [2020-12-22 13:07:00,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47139 states to 47139 states and 69437 transitions. [2020-12-22 13:07:00,107 INFO L78 Accepts]: Start accepts. Automaton has 47139 states and 69437 transitions. Word has length 43 [2020-12-22 13:07:00,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:07:00,107 INFO L481 AbstractCegarLoop]: Abstraction has 47139 states and 69437 transitions. [2020-12-22 13:07:00,107 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 13:07:00,107 INFO L276 IsEmpty]: Start isEmpty. Operand 47139 states and 69437 transitions. [2020-12-22 13:07:00,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-12-22 13:07:00,125 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:07:00,126 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-12-22 13:07:00,126 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 13:07:00,126 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:07:00,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:07:00,127 INFO L82 PathProgramCache]: Analyzing trace with hash 2077007777, now seen corresponding path program 1 times [2020-12-22 13:07:00,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:07:00,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149042340] [2020-12-22 13:07:00,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:07:00,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:07:00,368 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:07:00,368 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149042340] [2020-12-22 13:07:00,369 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:07:00,369 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 13:07:00,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914628716] [2020-12-22 13:07:00,369 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 13:07:00,370 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:07:00,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 13:07:00,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 13:07:00,370 INFO L87 Difference]: Start difference. First operand 47139 states and 69437 transitions. Second operand 4 states. [2020-12-22 13:07:02,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:07:02,723 INFO L93 Difference]: Finished difference Result 94266 states and 138854 transitions. [2020-12-22 13:07:02,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 13:07:02,724 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 72 [2020-12-22 13:07:02,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:07:02,799 INFO L225 Difference]: With dead ends: 94266 [2020-12-22 13:07:02,799 INFO L226 Difference]: Without dead ends: 47097 [2020-12-22 13:07:02,855 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 [2020-12-22 13:07:02,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47097 states. [2020-12-22 13:07:04,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47097 to 47054. [2020-12-22 13:07:04,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47054 states. [2020-12-22 13:07:04,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47054 states to 47054 states and 69336 transitions. [2020-12-22 13:07:04,826 INFO L78 Accepts]: Start accepts. Automaton has 47054 states and 69336 transitions. Word has length 72 [2020-12-22 13:07:04,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:07:04,826 INFO L481 AbstractCegarLoop]: Abstraction has 47054 states and 69336 transitions. [2020-12-22 13:07:04,827 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 13:07:04,827 INFO L276 IsEmpty]: Start isEmpty. Operand 47054 states and 69336 transitions. [2020-12-22 13:07:04,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-12-22 13:07:04,861 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:07:04,862 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:07:04,862 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 13:07:04,862 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:07:04,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:07:04,863 INFO L82 PathProgramCache]: Analyzing trace with hash 1468839328, now seen corresponding path program 1 times [2020-12-22 13:07:04,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:07:04,863 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644484674] [2020-12-22 13:07:04,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:07:05,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:07:05,545 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:07:05,545 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644484674] [2020-12-22 13:07:05,545 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:07:05,546 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 13:07:05,546 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221897552] [2020-12-22 13:07:05,546 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 13:07:05,547 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:07:05,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 13:07:05,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 13:07:05,547 INFO L87 Difference]: Start difference. First operand 47054 states and 69336 transitions. Second operand 5 states. [2020-12-22 13:07:07,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:07:07,615 INFO L93 Difference]: Finished difference Result 94248 states and 138828 transitions. [2020-12-22 13:07:07,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 13:07:07,616 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 103 [2020-12-22 13:07:07,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:07:07,695 INFO L225 Difference]: With dead ends: 94248 [2020-12-22 13:07:07,696 INFO L226 Difference]: Without dead ends: 47144 [2020-12-22 13:07:07,755 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 [2020-12-22 13:07:07,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47144 states. [2020-12-22 13:07:09,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47144 to 47089. [2020-12-22 13:07:09,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47089 states. [2020-12-22 13:07:09,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47089 states to 47089 states and 69366 transitions. [2020-12-22 13:07:09,465 INFO L78 Accepts]: Start accepts. Automaton has 47089 states and 69366 transitions. Word has length 103 [2020-12-22 13:07:09,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:07:09,465 INFO L481 AbstractCegarLoop]: Abstraction has 47089 states and 69366 transitions. [2020-12-22 13:07:09,465 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 13:07:09,465 INFO L276 IsEmpty]: Start isEmpty. Operand 47089 states and 69366 transitions. [2020-12-22 13:07:09,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-12-22 13:07:09,503 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:07:09,503 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:07:09,503 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 13:07:09,504 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:07:09,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:07:09,504 INFO L82 PathProgramCache]: Analyzing trace with hash -753321489, now seen corresponding path program 1 times [2020-12-22 13:07:09,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:07:09,505 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679111825] [2020-12-22 13:07:09,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:07:09,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:07:09,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-12-22 13:07:09,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:07:09,837 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:07:09,837 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679111825] [2020-12-22 13:07:09,838 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:07:09,838 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 13:07:09,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016618367] [2020-12-22 13:07:09,839 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 13:07:09,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:07:09,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 13:07:09,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 13:07:09,841 INFO L87 Difference]: Start difference. First operand 47089 states and 69366 transitions. Second operand 4 states. [2020-12-22 13:08:03,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:08:03,555 INFO L93 Difference]: Finished difference Result 94220 states and 138805 transitions. [2020-12-22 13:08:03,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 13:08:03,557 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 121 [2020-12-22 13:08:03,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:08:03,681 INFO L225 Difference]: With dead ends: 94220 [2020-12-22 13:08:03,682 INFO L226 Difference]: Without dead ends: 47163 [2020-12-22 13:08:03,746 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 13:08:03,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47163 states. [2020-12-22 13:08:05,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47163 to 47093. [2020-12-22 13:08:05,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47093 states. [2020-12-22 13:08:05,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47093 states to 47093 states and 69370 transitions. [2020-12-22 13:08:05,740 INFO L78 Accepts]: Start accepts. Automaton has 47093 states and 69370 transitions. Word has length 121 [2020-12-22 13:08:05,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:08:05,741 INFO L481 AbstractCegarLoop]: Abstraction has 47093 states and 69370 transitions. [2020-12-22 13:08:05,741 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 13:08:05,741 INFO L276 IsEmpty]: Start isEmpty. Operand 47093 states and 69370 transitions. [2020-12-22 13:08:05,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-12-22 13:08:05,775 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:08:05,776 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:08:05,776 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 13:08:05,776 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:08:05,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:08:05,777 INFO L82 PathProgramCache]: Analyzing trace with hash 971400235, now seen corresponding path program 1 times [2020-12-22 13:08:05,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:08:05,777 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617949804] [2020-12-22 13:08:05,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:08:05,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:08:06,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-12-22 13:08:06,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:08:06,134 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:08:06,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617949804] [2020-12-22 13:08:06,135 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [118663314] [2020-12-22 13:08:06,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/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 [2020-12-22 13:08:08,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:08:08,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 3251 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-22 13:08:08,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 13:08:09,121 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:08:09,121 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 13:08:09,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 6 [2020-12-22 13:08:09,124 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613485218] [2020-12-22 13:08:09,125 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 13:08:09,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:08:09,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 13:08:09,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-22 13:08:09,126 INFO L87 Difference]: Start difference. First operand 47093 states and 69370 transitions. Second operand 6 states.