/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-22 00:47:12,867 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-22 00:47:12,870 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-22 00:47:12,916 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-22 00:47:12,916 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-22 00:47:12,928 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-22 00:47:12,929 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-22 00:47:12,932 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-22 00:47:12,936 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-22 00:47:12,939 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-22 00:47:12,940 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-22 00:47:12,942 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-22 00:47:12,943 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-22 00:47:12,946 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-22 00:47:12,948 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-22 00:47:12,950 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-22 00:47:12,951 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-22 00:47:12,952 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-22 00:47:12,954 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-22 00:47:12,963 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-22 00:47:12,964 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-22 00:47:12,966 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-22 00:47:12,967 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-22 00:47:12,968 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-22 00:47:12,972 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-22 00:47:12,972 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-22 00:47:12,972 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-22 00:47:12,975 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-22 00:47:12,975 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-22 00:47:12,977 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-22 00:47:12,978 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-22 00:47:12,979 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-22 00:47:12,980 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-22 00:47:12,980 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-22 00:47:12,981 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-22 00:47:12,981 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-22 00:47:12,982 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-22 00:47:12,982 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-22 00:47:12,982 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-22 00:47:12,984 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-22 00:47:12,986 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-22 00:47:12,986 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-10-22 00:47:13,026 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-22 00:47:13,026 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-22 00:47:13,028 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-22 00:47:13,029 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-22 00:47:13,029 INFO L138 SettingsManager]: * Use SBE=true [2020-10-22 00:47:13,029 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-22 00:47:13,030 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-22 00:47:13,030 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-22 00:47:13,031 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-22 00:47:13,031 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-22 00:47:13,032 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-22 00:47:13,032 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-22 00:47:13,032 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-22 00:47:13,032 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-22 00:47:13,033 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-22 00:47:13,033 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-22 00:47:13,033 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-22 00:47:13,033 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-22 00:47:13,033 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-22 00:47:13,033 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-22 00:47:13,034 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-22 00:47:13,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 00:47:13,034 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-22 00:47:13,034 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-22 00:47:13,034 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-22 00:47:13,035 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-22 00:47:13,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-22 00:47:13,035 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-22 00:47:13,035 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-22 00:47:13,036 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-22 00:47:13,036 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-22 00:47:13,323 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-22 00:47:13,334 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-22 00:47:13,338 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-22 00:47:13,340 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-22 00:47:13,340 INFO L275 PluginConnector]: CDTParser initialized [2020-10-22 00:47:13,341 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i [2020-10-22 00:47:13,403 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4548ec87/790736a1bf554861a1848fb6c3e9de75/FLAG94f8c5803 [2020-10-22 00:47:13,986 INFO L306 CDTParser]: Found 1 translation units. [2020-10-22 00:47:13,986 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i [2020-10-22 00:47:14,008 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4548ec87/790736a1bf554861a1848fb6c3e9de75/FLAG94f8c5803 [2020-10-22 00:47:14,210 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4548ec87/790736a1bf554861a1848fb6c3e9de75 [2020-10-22 00:47:14,219 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-22 00:47:14,226 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-22 00:47:14,227 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-22 00:47:14,227 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-22 00:47:14,231 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-22 00:47:14,232 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 12:47:14" (1/1) ... [2020-10-22 00:47:14,235 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@583129f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:47:14, skipping insertion in model container [2020-10-22 00:47:14,235 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 12:47:14" (1/1) ... [2020-10-22 00:47:14,243 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-22 00:47:14,295 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-22 00:47:14,473 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-10-22 00:47:15,058 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 00:47:15,069 INFO L203 MainTranslator]: Completed pre-run [2020-10-22 00:47:15,084 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-10-22 00:47:15,182 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 00:47:15,655 INFO L208 MainTranslator]: Completed translation [2020-10-22 00:47:15,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:47:15 WrapperNode [2020-10-22 00:47:15,657 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-22 00:47:15,659 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-22 00:47:15,659 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-22 00:47:15,660 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-22 00:47:15,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:47:15" (1/1) ... [2020-10-22 00:47:15,726 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:47:15" (1/1) ... [2020-10-22 00:47:15,768 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-22 00:47:15,769 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-22 00:47:15,769 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-22 00:47:15,769 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-22 00:47:15,786 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:47:15" (1/1) ... [2020-10-22 00:47:15,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:47:15" (1/1) ... [2020-10-22 00:47:15,791 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:47:15" (1/1) ... [2020-10-22 00:47:15,791 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:47:15" (1/1) ... [2020-10-22 00:47:15,808 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:47:15" (1/1) ... [2020-10-22 00:47:15,812 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:47:15" (1/1) ... [2020-10-22 00:47:15,817 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:47:15" (1/1) ... [2020-10-22 00:47:15,826 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-22 00:47:15,826 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-22 00:47:15,826 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-22 00:47:15,827 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-22 00:47:15,828 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:47:15" (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 [2020-10-22 00:47:15,933 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-22 00:47:15,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-22 00:47:15,934 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-22 00:47:15,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-22 00:47:15,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-22 00:47:15,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-22 00:47:15,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-22 00:47:15,935 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2020-10-22 00:47:15,935 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2020-10-22 00:47:15,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-22 00:47:15,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-22 00:47:15,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-22 00:47:15,938 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-22 00:47:16,856 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-22 00:47:16,857 INFO L298 CfgBuilder]: Removed 36 assume(true) statements. [2020-10-22 00:47:16,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 12:47:16 BoogieIcfgContainer [2020-10-22 00:47:16,860 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-22 00:47:16,862 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-22 00:47:16,862 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-22 00:47:16,865 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-22 00:47:16,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 12:47:14" (1/3) ... [2020-10-22 00:47:16,866 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ea65a78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 12:47:16, skipping insertion in model container [2020-10-22 00:47:16,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:47:15" (2/3) ... [2020-10-22 00:47:16,867 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ea65a78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 12:47:16, skipping insertion in model container [2020-10-22 00:47:16,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 12:47:16" (3/3) ... [2020-10-22 00:47:16,869 INFO L111 eAbstractionObserver]: Analyzing ICFG race-3_2-container_of-global.i [2020-10-22 00:47:16,881 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-22 00:47:16,882 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-22 00:47:16,890 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-10-22 00:47:16,891 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-22 00:47:16,925 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:47:16,925 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:47:16,925 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:47:16,926 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:47:16,926 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:47:16,926 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:47:16,927 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:47:16,927 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:47:16,927 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:47:16,927 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:47:16,928 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:47:16,928 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:47:16,928 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:47:16,928 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:47:16,929 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:47:16,929 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:47:16,929 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:47:16,930 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:47:16,930 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:47:16,930 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:47:16,930 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:47:16,930 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:47:16,931 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:47:16,931 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:47:16,931 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:47:16,931 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:47:16,932 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:47:16,932 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:47:16,932 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:47:16,932 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:47:16,933 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:47:16,933 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:47:16,933 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:47:16,933 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:47:16,934 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:47:16,934 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:47:16,934 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:47:16,934 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:47:16,938 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:47:16,939 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:47:16,939 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:47:16,939 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:47:16,940 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:47:16,940 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:47:16,940 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:47:16,940 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:47:16,941 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:47:16,945 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:47:16,945 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:47:16,945 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:47:16,946 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:47:16,946 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:47:16,946 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:47:16,946 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:47:16,946 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:47:16,947 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:47:16,957 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-10-22 00:47:16,972 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-10-22 00:47:16,994 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 00:47:16,994 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 00:47:16,994 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 00:47:16,995 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 00:47:16,995 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 00:47:16,995 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 00:47:16,995 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 00:47:16,995 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 00:47:17,014 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 00:47:17,015 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 168 places, 178 transitions, 378 flow [2020-10-22 00:47:17,017 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 168 places, 178 transitions, 378 flow [2020-10-22 00:47:17,018 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 168 places, 178 transitions, 378 flow [2020-10-22 00:47:17,113 INFO L129 PetriNetUnfolder]: 19/226 cut-off events. [2020-10-22 00:47:17,113 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-22 00:47:17,122 INFO L80 FinitePrefix]: Finished finitePrefix Result has 237 conditions, 226 events. 19/226 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 444 event pairs, 0 based on Foata normal form. 0/198 useless extension candidates. Maximal degree in co-relation 126. Up to 4 conditions per place. [2020-10-22 00:47:17,129 INFO L116 LiptonReduction]: Number of co-enabled transitions 1872 [2020-10-22 00:47:18,766 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-22 00:47:18,782 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-22 00:47:18,785 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-22 00:47:18,806 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-22 00:47:18,807 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-22 00:47:18,808 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:95, output treesize:67 [2020-10-22 00:47:19,650 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2020-10-22 00:47:20,903 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2020-10-22 00:47:21,604 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2020-10-22 00:47:21,628 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-22 00:47:21,720 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-22 00:47:21,727 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-22 00:47:21,801 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-22 00:47:21,803 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-22 00:47:21,804 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:163, output treesize:135 [2020-10-22 00:47:22,128 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 96 [2020-10-22 00:47:22,142 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-22 00:47:22,242 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-22 00:47:22,249 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-22 00:47:22,375 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-22 00:47:22,375 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-22 00:47:22,377 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-22 00:47:22,377 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:172, output treesize:144 [2020-10-22 00:47:23,704 WARN L193 SmtUtils]: Spent 743.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 144 [2020-10-22 00:47:24,041 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2020-10-22 00:47:24,225 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 70 [2020-10-22 00:47:26,195 WARN L193 SmtUtils]: Spent 1.90 s on a formula simplification. DAG size of input: 173 DAG size of output: 171 [2020-10-22 00:47:26,226 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-22 00:47:27,217 WARN L193 SmtUtils]: Spent 990.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-22 00:47:27,219 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-22 00:47:27,234 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-22 00:47:28,009 WARN L193 SmtUtils]: Spent 774.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-22 00:47:28,010 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-22 00:47:28,012 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-10-22 00:47:28,012 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:350, output treesize:362 [2020-10-22 00:47:28,811 WARN L193 SmtUtils]: Spent 797.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-22 00:47:29,677 WARN L193 SmtUtils]: Spent 864.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 159 [2020-10-22 00:47:30,105 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-22 00:47:30,113 INFO L131 LiptonReduction]: Checked pairs total: 3600 [2020-10-22 00:47:30,113 INFO L133 LiptonReduction]: Total number of compositions: 222 [2020-10-22 00:47:30,120 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 34 places, 32 transitions, 86 flow [2020-10-22 00:47:30,134 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 121 states. [2020-10-22 00:47:30,137 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states. [2020-10-22 00:47:30,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2020-10-22 00:47:30,143 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:47:30,144 INFO L422 BasicCegarLoop]: trace histogram [1] [2020-10-22 00:47:30,145 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:47:30,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:47:30,151 INFO L82 PathProgramCache]: Analyzing trace with hash 688, now seen corresponding path program 1 times [2020-10-22 00:47:30,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:47:30,176 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832632961] [2020-10-22 00:47:30,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:47:30,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:47:30,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:47:30,433 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832632961] [2020-10-22 00:47:30,435 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:47:30,435 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2020-10-22 00:47:30,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [690283738] [2020-10-22 00:47:30,437 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:47:30,440 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:47:30,448 INFO L252 McrAutomatonBuilder]: Finished intersection with 2 states and 1 transitions. [2020-10-22 00:47:30,448 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:47:30,453 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:47:30,454 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-22 00:47:30,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:47:30,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-22 00:47:30,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-22 00:47:30,473 INFO L87 Difference]: Start difference. First operand 121 states. Second operand 2 states. [2020-10-22 00:47:30,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:47:30,499 INFO L93 Difference]: Finished difference Result 119 states and 236 transitions. [2020-10-22 00:47:30,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-22 00:47:30,501 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 1 [2020-10-22 00:47:30,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:47:30,519 INFO L225 Difference]: With dead ends: 119 [2020-10-22 00:47:30,519 INFO L226 Difference]: Without dead ends: 108 [2020-10-22 00:47:30,526 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-22 00:47:30,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-10-22 00:47:30,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2020-10-22 00:47:30,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-10-22 00:47:30,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 213 transitions. [2020-10-22 00:47:30,574 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 213 transitions. Word has length 1 [2020-10-22 00:47:30,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:47:30,574 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 213 transitions. [2020-10-22 00:47:30,575 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-22 00:47:30,575 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 213 transitions. [2020-10-22 00:47:30,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-22 00:47:30,575 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:47:30,576 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-22 00:47:30,576 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-22 00:47:30,576 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:47:30,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:47:30,577 INFO L82 PathProgramCache]: Analyzing trace with hash 654434250, now seen corresponding path program 1 times [2020-10-22 00:47:30,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:47:30,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442139418] [2020-10-22 00:47:30,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:47:30,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:47:30,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:47:30,865 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442139418] [2020-10-22 00:47:30,865 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:47:30,865 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 00:47:30,865 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1124710684] [2020-10-22 00:47:30,865 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:47:30,868 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:47:30,870 INFO L252 McrAutomatonBuilder]: Finished intersection with 6 states and 5 transitions. [2020-10-22 00:47:30,870 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:47:30,871 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:47:30,872 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 00:47:30,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:47:30,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 00:47:30,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 00:47:30,873 INFO L87 Difference]: Start difference. First operand 108 states and 213 transitions. Second operand 4 states. [2020-10-22 00:47:31,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:47:31,044 INFO L93 Difference]: Finished difference Result 146 states and 291 transitions. [2020-10-22 00:47:31,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 00:47:31,044 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-10-22 00:47:31,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:47:31,051 INFO L225 Difference]: With dead ends: 146 [2020-10-22 00:47:31,054 INFO L226 Difference]: Without dead ends: 146 [2020-10-22 00:47:31,055 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 00:47:31,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-10-22 00:47:31,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 130. [2020-10-22 00:47:31,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-22 00:47:31,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 263 transitions. [2020-10-22 00:47:31,090 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 263 transitions. Word has length 5 [2020-10-22 00:47:31,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:47:31,091 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 263 transitions. [2020-10-22 00:47:31,091 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 00:47:31,091 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 263 transitions. [2020-10-22 00:47:31,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-22 00:47:31,092 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:47:31,092 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-22 00:47:31,092 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-22 00:47:31,093 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:47:31,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:47:31,093 INFO L82 PathProgramCache]: Analyzing trace with hash 654434302, now seen corresponding path program 1 times [2020-10-22 00:47:31,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:47:31,096 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066791831] [2020-10-22 00:47:31,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:47:31,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:47:31,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:47:31,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066791831] [2020-10-22 00:47:31,219 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:47:31,219 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 00:47:31,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1302764203] [2020-10-22 00:47:31,220 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:47:31,221 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:47:31,222 INFO L252 McrAutomatonBuilder]: Finished intersection with 6 states and 5 transitions. [2020-10-22 00:47:31,223 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:47:31,223 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:47:31,223 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 00:47:31,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:47:31,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 00:47:31,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 00:47:31,224 INFO L87 Difference]: Start difference. First operand 130 states and 263 transitions. Second operand 3 states. [2020-10-22 00:47:31,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:47:31,332 INFO L93 Difference]: Finished difference Result 160 states and 315 transitions. [2020-10-22 00:47:31,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 00:47:31,332 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-22 00:47:31,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:47:31,338 INFO L225 Difference]: With dead ends: 160 [2020-10-22 00:47:31,338 INFO L226 Difference]: Without dead ends: 153 [2020-10-22 00:47:31,338 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 [2020-10-22 00:47:31,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-10-22 00:47:31,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 145. [2020-10-22 00:47:31,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2020-10-22 00:47:31,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 297 transitions. [2020-10-22 00:47:31,368 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 297 transitions. Word has length 5 [2020-10-22 00:47:31,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:47:31,368 INFO L481 AbstractCegarLoop]: Abstraction has 145 states and 297 transitions. [2020-10-22 00:47:31,368 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 00:47:31,369 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 297 transitions. [2020-10-22 00:47:31,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-22 00:47:31,375 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:47:31,375 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:47:31,375 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-22 00:47:31,376 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:47:31,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:47:31,376 INFO L82 PathProgramCache]: Analyzing trace with hash -1212118520, now seen corresponding path program 1 times [2020-10-22 00:47:31,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:47:31,379 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442543401] [2020-10-22 00:47:31,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:47:31,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:47:31,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:47:31,475 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442543401] [2020-10-22 00:47:31,475 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:47:31,475 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 00:47:31,476 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1142732785] [2020-10-22 00:47:31,476 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:47:31,478 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:47:31,482 INFO L252 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-10-22 00:47:31,483 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:47:31,483 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:47:31,483 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 00:47:31,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:47:31,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 00:47:31,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 00:47:31,484 INFO L87 Difference]: Start difference. First operand 145 states and 297 transitions. Second operand 3 states. [2020-10-22 00:47:31,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:47:31,515 INFO L93 Difference]: Finished difference Result 57 states and 101 transitions. [2020-10-22 00:47:31,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 00:47:31,516 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-22 00:47:31,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:47:31,517 INFO L225 Difference]: With dead ends: 57 [2020-10-22 00:47:31,517 INFO L226 Difference]: Without dead ends: 57 [2020-10-22 00:47:31,518 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 [2020-10-22 00:47:31,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-10-22 00:47:31,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2020-10-22 00:47:31,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-10-22 00:47:31,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 101 transitions. [2020-10-22 00:47:31,531 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 101 transitions. Word has length 10 [2020-10-22 00:47:31,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:47:31,531 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 101 transitions. [2020-10-22 00:47:31,531 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 00:47:31,532 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 101 transitions. [2020-10-22 00:47:31,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 00:47:31,533 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:47:31,533 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:47:31,533 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-22 00:47:31,533 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:47:31,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:47:31,534 INFO L82 PathProgramCache]: Analyzing trace with hash 1197590593, now seen corresponding path program 1 times [2020-10-22 00:47:31,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:47:31,536 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326255096] [2020-10-22 00:47:31,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:47:31,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:47:31,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:47:31,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326255096] [2020-10-22 00:47:31,965 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:47:31,965 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-22 00:47:31,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1021951853] [2020-10-22 00:47:31,967 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:47:31,973 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:47:31,979 INFO L252 McrAutomatonBuilder]: Finished intersection with 19 states and 20 transitions. [2020-10-22 00:47:31,979 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:47:32,102 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:47:32,102 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-22 00:47:32,103 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:47:32,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-22 00:47:32,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-22 00:47:32,104 INFO L87 Difference]: Start difference. First operand 57 states and 101 transitions. Second operand 7 states. [2020-10-22 00:47:32,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:47:32,423 INFO L93 Difference]: Finished difference Result 98 states and 161 transitions. [2020-10-22 00:47:32,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-22 00:47:32,423 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2020-10-22 00:47:32,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:47:32,425 INFO L225 Difference]: With dead ends: 98 [2020-10-22 00:47:32,425 INFO L226 Difference]: Without dead ends: 98 [2020-10-22 00:47:32,426 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2020-10-22 00:47:32,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-10-22 00:47:32,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 74. [2020-10-22 00:47:32,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-22 00:47:32,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 124 transitions. [2020-10-22 00:47:32,432 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 124 transitions. Word has length 16 [2020-10-22 00:47:32,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:47:32,433 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 124 transitions. [2020-10-22 00:47:32,433 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-22 00:47:32,433 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 124 transitions. [2020-10-22 00:47:32,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 00:47:32,434 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:47:32,434 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:47:32,434 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-22 00:47:32,435 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:47:32,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:47:32,435 INFO L82 PathProgramCache]: Analyzing trace with hash 1197590631, now seen corresponding path program 1 times [2020-10-22 00:47:32,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:47:32,442 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791643848] [2020-10-22 00:47:32,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:47:32,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:47:33,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:47:33,035 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791643848] [2020-10-22 00:47:33,035 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:47:33,035 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 00:47:33,036 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [356404827] [2020-10-22 00:47:33,036 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:47:33,041 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:47:33,047 INFO L252 McrAutomatonBuilder]: Finished intersection with 19 states and 20 transitions. [2020-10-22 00:47:33,048 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:47:33,127 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:47:33,128 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 00:47:33,128 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:47:33,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 00:47:33,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-22 00:47:33,129 INFO L87 Difference]: Start difference. First operand 74 states and 124 transitions. Second operand 10 states. [2020-10-22 00:47:33,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:47:33,538 INFO L93 Difference]: Finished difference Result 88 states and 141 transitions. [2020-10-22 00:47:33,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-22 00:47:33,539 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 00:47:33,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:47:33,540 INFO L225 Difference]: With dead ends: 88 [2020-10-22 00:47:33,540 INFO L226 Difference]: Without dead ends: 77 [2020-10-22 00:47:33,541 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-10-22 00:47:33,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-10-22 00:47:33,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 72. [2020-10-22 00:47:33,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-10-22 00:47:33,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 120 transitions. [2020-10-22 00:47:33,546 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 120 transitions. Word has length 16 [2020-10-22 00:47:33,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:47:33,546 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 120 transitions. [2020-10-22 00:47:33,546 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 00:47:33,546 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 120 transitions. [2020-10-22 00:47:33,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 00:47:33,547 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:47:33,547 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:47:33,548 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-22 00:47:33,548 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:47:33,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:47:33,548 INFO L82 PathProgramCache]: Analyzing trace with hash -1365975115, now seen corresponding path program 2 times [2020-10-22 00:47:33,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:47:33,550 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993240268] [2020-10-22 00:47:33,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:47:33,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:47:34,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:47:34,175 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993240268] [2020-10-22 00:47:34,175 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:47:34,176 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 00:47:34,177 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1275611774] [2020-10-22 00:47:34,177 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:47:34,181 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:47:34,186 INFO L252 McrAutomatonBuilder]: Finished intersection with 18 states and 18 transitions. [2020-10-22 00:47:34,187 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:47:34,218 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:47:34,218 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 00:47:34,219 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:47:34,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 00:47:34,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-22 00:47:34,219 INFO L87 Difference]: Start difference. First operand 72 states and 120 transitions. Second operand 10 states. [2020-10-22 00:47:34,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:47:34,643 INFO L93 Difference]: Finished difference Result 77 states and 127 transitions. [2020-10-22 00:47:34,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-22 00:47:34,644 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 00:47:34,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:47:34,645 INFO L225 Difference]: With dead ends: 77 [2020-10-22 00:47:34,645 INFO L226 Difference]: Without dead ends: 62 [2020-10-22 00:47:34,646 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-10-22 00:47:34,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-10-22 00:47:34,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 57. [2020-10-22 00:47:34,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-10-22 00:47:34,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 99 transitions. [2020-10-22 00:47:34,653 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 99 transitions. Word has length 16 [2020-10-22 00:47:34,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:47:34,654 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 99 transitions. [2020-10-22 00:47:34,654 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 00:47:34,654 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 99 transitions. [2020-10-22 00:47:34,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 00:47:34,660 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:47:34,660 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:47:34,660 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-22 00:47:34,660 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:47:34,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:47:34,661 INFO L82 PathProgramCache]: Analyzing trace with hash -1825504767, now seen corresponding path program 2 times [2020-10-22 00:47:34,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:47:34,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126614607] [2020-10-22 00:47:34,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:47:34,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:47:34,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:47:34,959 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126614607] [2020-10-22 00:47:34,959 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:47:34,959 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-22 00:47:34,960 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [905481355] [2020-10-22 00:47:34,960 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:47:34,965 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:47:34,971 INFO L252 McrAutomatonBuilder]: Finished intersection with 17 states and 16 transitions. [2020-10-22 00:47:34,971 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:47:34,972 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:47:34,972 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-22 00:47:34,972 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:47:34,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-22 00:47:34,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-22 00:47:34,973 INFO L87 Difference]: Start difference. First operand 57 states and 99 transitions. Second operand 7 states. [2020-10-22 00:47:35,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:47:35,276 INFO L93 Difference]: Finished difference Result 86 states and 145 transitions. [2020-10-22 00:47:35,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-22 00:47:35,277 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2020-10-22 00:47:35,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:47:35,278 INFO L225 Difference]: With dead ends: 86 [2020-10-22 00:47:35,278 INFO L226 Difference]: Without dead ends: 86 [2020-10-22 00:47:35,279 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-10-22 00:47:35,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-10-22 00:47:35,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 70. [2020-10-22 00:47:35,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-10-22 00:47:35,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 116 transitions. [2020-10-22 00:47:35,284 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 116 transitions. Word has length 16 [2020-10-22 00:47:35,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:47:35,284 INFO L481 AbstractCegarLoop]: Abstraction has 70 states and 116 transitions. [2020-10-22 00:47:35,284 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-22 00:47:35,284 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 116 transitions. [2020-10-22 00:47:35,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 00:47:35,285 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:47:35,285 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:47:35,285 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-22 00:47:35,285 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:47:35,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:47:35,286 INFO L82 PathProgramCache]: Analyzing trace with hash -1825504729, now seen corresponding path program 3 times [2020-10-22 00:47:35,287 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:47:35,287 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932741876] [2020-10-22 00:47:35,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:47:35,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:47:35,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:47:35,784 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932741876] [2020-10-22 00:47:35,785 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:47:35,785 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 00:47:35,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1615313611] [2020-10-22 00:47:35,785 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:47:35,788 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:47:35,793 INFO L252 McrAutomatonBuilder]: Finished intersection with 17 states and 16 transitions. [2020-10-22 00:47:35,794 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:47:35,794 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:47:35,794 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 00:47:35,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:47:35,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 00:47:35,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-22 00:47:35,796 INFO L87 Difference]: Start difference. First operand 70 states and 116 transitions. Second operand 10 states. [2020-10-22 00:47:36,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:47:36,230 INFO L93 Difference]: Finished difference Result 91 states and 146 transitions. [2020-10-22 00:47:36,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-22 00:47:36,232 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 00:47:36,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:47:36,233 INFO L225 Difference]: With dead ends: 91 [2020-10-22 00:47:36,233 INFO L226 Difference]: Without dead ends: 70 [2020-10-22 00:47:36,234 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-10-22 00:47:36,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-10-22 00:47:36,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 66. [2020-10-22 00:47:36,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-10-22 00:47:36,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 108 transitions. [2020-10-22 00:47:36,237 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 108 transitions. Word has length 16 [2020-10-22 00:47:36,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:47:36,237 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 108 transitions. [2020-10-22 00:47:36,238 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 00:47:36,238 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 108 transitions. [2020-10-22 00:47:36,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 00:47:36,238 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:47:36,238 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:47:36,239 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-22 00:47:36,239 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:47:36,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:47:36,239 INFO L82 PathProgramCache]: Analyzing trace with hash -1400756409, now seen corresponding path program 3 times [2020-10-22 00:47:36,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:47:36,241 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572187531] [2020-10-22 00:47:36,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:47:36,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:47:36,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:47:36,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572187531] [2020-10-22 00:47:36,550 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:47:36,550 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-22 00:47:36,550 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [414272183] [2020-10-22 00:47:36,551 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:47:36,553 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:47:36,563 INFO L252 McrAutomatonBuilder]: Finished intersection with 20 states and 22 transitions. [2020-10-22 00:47:36,564 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:47:36,806 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 31 [2020-10-22 00:47:36,817 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:47:36,817 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-22 00:47:36,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:47:36,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-22 00:47:36,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-10-22 00:47:36,818 INFO L87 Difference]: Start difference. First operand 66 states and 108 transitions. Second operand 9 states. [2020-10-22 00:47:37,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:47:37,299 INFO L93 Difference]: Finished difference Result 118 states and 181 transitions. [2020-10-22 00:47:37,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-22 00:47:37,299 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 16 [2020-10-22 00:47:37,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:47:37,300 INFO L225 Difference]: With dead ends: 118 [2020-10-22 00:47:37,301 INFO L226 Difference]: Without dead ends: 118 [2020-10-22 00:47:37,301 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2020-10-22 00:47:37,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2020-10-22 00:47:37,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 77. [2020-10-22 00:47:37,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-10-22 00:47:37,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 128 transitions. [2020-10-22 00:47:37,305 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 128 transitions. Word has length 16 [2020-10-22 00:47:37,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:47:37,306 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 128 transitions. [2020-10-22 00:47:37,306 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-22 00:47:37,306 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 128 transitions. [2020-10-22 00:47:37,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 00:47:37,307 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:47:37,307 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:47:37,307 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-22 00:47:37,307 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:47:37,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:47:37,308 INFO L82 PathProgramCache]: Analyzing trace with hash -1400756371, now seen corresponding path program 4 times [2020-10-22 00:47:37,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:47:37,313 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529668944] [2020-10-22 00:47:37,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:47:37,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:47:37,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:47:37,768 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529668944] [2020-10-22 00:47:37,768 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:47:37,769 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 00:47:37,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1075151224] [2020-10-22 00:47:37,769 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:47:37,772 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:47:37,777 INFO L252 McrAutomatonBuilder]: Finished intersection with 20 states and 22 transitions. [2020-10-22 00:47:37,778 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:47:37,919 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:47:37,919 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 00:47:37,919 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:47:37,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 00:47:37,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-22 00:47:37,921 INFO L87 Difference]: Start difference. First operand 77 states and 128 transitions. Second operand 10 states. [2020-10-22 00:47:38,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:47:38,240 INFO L93 Difference]: Finished difference Result 110 states and 181 transitions. [2020-10-22 00:47:38,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-22 00:47:38,240 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 00:47:38,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:47:38,241 INFO L225 Difference]: With dead ends: 110 [2020-10-22 00:47:38,241 INFO L226 Difference]: Without dead ends: 99 [2020-10-22 00:47:38,242 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-10-22 00:47:38,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-10-22 00:47:38,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 81. [2020-10-22 00:47:38,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-10-22 00:47:38,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 136 transitions. [2020-10-22 00:47:38,246 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 136 transitions. Word has length 16 [2020-10-22 00:47:38,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:47:38,246 INFO L481 AbstractCegarLoop]: Abstraction has 81 states and 136 transitions. [2020-10-22 00:47:38,246 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 00:47:38,246 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 136 transitions. [2020-10-22 00:47:38,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 00:47:38,247 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:47:38,247 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:47:38,247 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-22 00:47:38,247 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:47:38,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:47:38,248 INFO L82 PathProgramCache]: Analyzing trace with hash 330645179, now seen corresponding path program 5 times [2020-10-22 00:47:38,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:47:38,253 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538322278] [2020-10-22 00:47:38,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:47:38,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:47:38,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:47:38,689 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538322278] [2020-10-22 00:47:38,690 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:47:38,690 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 00:47:38,690 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [529335055] [2020-10-22 00:47:38,690 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:47:38,692 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:47:38,696 INFO L252 McrAutomatonBuilder]: Finished intersection with 19 states and 20 transitions. [2020-10-22 00:47:38,696 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:47:38,801 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:47:38,802 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 00:47:38,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:47:38,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 00:47:38,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-22 00:47:38,803 INFO L87 Difference]: Start difference. First operand 81 states and 136 transitions. Second operand 10 states. [2020-10-22 00:47:39,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:47:39,178 INFO L93 Difference]: Finished difference Result 116 states and 191 transitions. [2020-10-22 00:47:39,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-22 00:47:39,179 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 00:47:39,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:47:39,180 INFO L225 Difference]: With dead ends: 116 [2020-10-22 00:47:39,181 INFO L226 Difference]: Without dead ends: 101 [2020-10-22 00:47:39,181 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-22 00:47:39,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-10-22 00:47:39,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 79. [2020-10-22 00:47:39,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-10-22 00:47:39,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 132 transitions. [2020-10-22 00:47:39,185 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 132 transitions. Word has length 16 [2020-10-22 00:47:39,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:47:39,186 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 132 transitions. [2020-10-22 00:47:39,186 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 00:47:39,186 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 132 transitions. [2020-10-22 00:47:39,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 00:47:39,187 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:47:39,187 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:47:39,187 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-22 00:47:39,187 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:47:39,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:47:39,188 INFO L82 PathProgramCache]: Analyzing trace with hash -1002549257, now seen corresponding path program 6 times [2020-10-22 00:47:39,194 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:47:39,194 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120020112] [2020-10-22 00:47:39,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:47:39,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:47:39,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:47:39,714 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120020112] [2020-10-22 00:47:39,714 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:47:39,715 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 00:47:39,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1933545619] [2020-10-22 00:47:39,715 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:47:39,720 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:47:39,727 INFO L252 McrAutomatonBuilder]: Finished intersection with 20 states and 22 transitions. [2020-10-22 00:47:39,728 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:47:39,880 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 19 [2020-10-22 00:47:40,033 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 23 [2020-10-22 00:47:40,034 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:47:40,035 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 00:47:40,035 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:47:40,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 00:47:40,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-22 00:47:40,036 INFO L87 Difference]: Start difference. First operand 79 states and 132 transitions. Second operand 10 states. [2020-10-22 00:47:40,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:47:40,564 INFO L93 Difference]: Finished difference Result 104 states and 167 transitions. [2020-10-22 00:47:40,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-22 00:47:40,565 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 00:47:40,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:47:40,566 INFO L225 Difference]: With dead ends: 104 [2020-10-22 00:47:40,566 INFO L226 Difference]: Without dead ends: 93 [2020-10-22 00:47:40,567 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-10-22 00:47:40,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-10-22 00:47:40,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 81. [2020-10-22 00:47:40,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-10-22 00:47:40,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 134 transitions. [2020-10-22 00:47:40,576 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 134 transitions. Word has length 16 [2020-10-22 00:47:40,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:47:40,578 INFO L481 AbstractCegarLoop]: Abstraction has 81 states and 134 transitions. [2020-10-22 00:47:40,579 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 00:47:40,579 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 134 transitions. [2020-10-22 00:47:40,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 00:47:40,580 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:47:40,580 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:47:40,580 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-22 00:47:40,580 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:47:40,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:47:40,581 INFO L82 PathProgramCache]: Analyzing trace with hash 615893921, now seen corresponding path program 7 times [2020-10-22 00:47:40,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:47:40,583 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014623035] [2020-10-22 00:47:40,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:47:40,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:47:41,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:47:41,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014623035] [2020-10-22 00:47:41,135 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:47:41,135 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 00:47:41,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [782609478] [2020-10-22 00:47:41,135 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:47:41,138 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:47:41,142 INFO L252 McrAutomatonBuilder]: Finished intersection with 19 states and 20 transitions. [2020-10-22 00:47:41,142 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:47:41,275 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 23 [2020-10-22 00:47:41,276 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:47:41,276 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 00:47:41,276 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:47:41,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 00:47:41,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-22 00:47:41,277 INFO L87 Difference]: Start difference. First operand 81 states and 134 transitions. Second operand 10 states. [2020-10-22 00:47:41,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:47:41,674 INFO L93 Difference]: Finished difference Result 110 states and 177 transitions. [2020-10-22 00:47:41,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-22 00:47:41,675 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 00:47:41,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:47:41,675 INFO L225 Difference]: With dead ends: 110 [2020-10-22 00:47:41,675 INFO L226 Difference]: Without dead ends: 95 [2020-10-22 00:47:41,676 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-22 00:47:41,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-10-22 00:47:41,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 79. [2020-10-22 00:47:41,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-10-22 00:47:41,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 130 transitions. [2020-10-22 00:47:41,679 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 130 transitions. Word has length 16 [2020-10-22 00:47:41,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:47:41,680 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 130 transitions. [2020-10-22 00:47:41,680 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 00:47:41,680 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 130 transitions. [2020-10-22 00:47:41,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 00:47:41,680 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:47:41,681 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:47:41,681 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-22 00:47:41,681 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:47:41,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:47:41,681 INFO L82 PathProgramCache]: Analyzing trace with hash -1037223855, now seen corresponding path program 8 times [2020-10-22 00:47:41,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:47:41,683 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634763015] [2020-10-22 00:47:41,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:47:41,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:47:42,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:47:42,232 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634763015] [2020-10-22 00:47:42,233 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:47:42,233 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 00:47:42,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1130631329] [2020-10-22 00:47:42,234 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:47:42,293 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:47:42,300 INFO L252 McrAutomatonBuilder]: Finished intersection with 18 states and 18 transitions. [2020-10-22 00:47:42,300 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:47:42,352 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:47:42,352 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 00:47:42,352 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:47:42,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 00:47:42,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-22 00:47:42,353 INFO L87 Difference]: Start difference. First operand 79 states and 130 transitions. Second operand 10 states. [2020-10-22 00:47:42,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:47:42,812 INFO L93 Difference]: Finished difference Result 99 states and 159 transitions. [2020-10-22 00:47:42,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-22 00:47:42,813 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 00:47:42,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:47:42,814 INFO L225 Difference]: With dead ends: 99 [2020-10-22 00:47:42,814 INFO L226 Difference]: Without dead ends: 86 [2020-10-22 00:47:42,815 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2020-10-22 00:47:42,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-10-22 00:47:42,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 80. [2020-10-22 00:47:42,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-10-22 00:47:42,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 131 transitions. [2020-10-22 00:47:42,819 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 131 transitions. Word has length 16 [2020-10-22 00:47:42,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:47:42,819 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 131 transitions. [2020-10-22 00:47:42,819 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 00:47:42,819 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 131 transitions. [2020-10-22 00:47:42,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 00:47:42,820 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:47:42,820 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:47:42,820 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-22 00:47:42,820 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:47:42,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:47:42,821 INFO L82 PathProgramCache]: Analyzing trace with hash -1150182227, now seen corresponding path program 9 times [2020-10-22 00:47:42,825 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:47:42,825 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259966292] [2020-10-22 00:47:42,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:47:42,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:47:43,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:47:43,241 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259966292] [2020-10-22 00:47:43,241 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:47:43,242 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 00:47:43,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [39739543] [2020-10-22 00:47:43,242 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:47:43,245 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:47:43,249 INFO L252 McrAutomatonBuilder]: Finished intersection with 18 states and 18 transitions. [2020-10-22 00:47:43,249 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:47:43,283 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:47:43,283 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 00:47:43,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:47:43,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 00:47:43,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-22 00:47:43,284 INFO L87 Difference]: Start difference. First operand 80 states and 131 transitions. Second operand 10 states. [2020-10-22 00:47:43,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:47:43,662 INFO L93 Difference]: Finished difference Result 95 states and 151 transitions. [2020-10-22 00:47:43,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-22 00:47:43,663 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 00:47:43,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:47:43,664 INFO L225 Difference]: With dead ends: 95 [2020-10-22 00:47:43,664 INFO L226 Difference]: Without dead ends: 79 [2020-10-22 00:47:43,664 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2020-10-22 00:47:43,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-10-22 00:47:43,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 77. [2020-10-22 00:47:43,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-10-22 00:47:43,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 126 transitions. [2020-10-22 00:47:43,667 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 126 transitions. Word has length 16 [2020-10-22 00:47:43,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:47:43,668 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 126 transitions. [2020-10-22 00:47:43,668 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 00:47:43,668 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 126 transitions. [2020-10-22 00:47:43,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 00:47:43,668 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:47:43,668 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:47:43,669 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-22 00:47:43,669 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:47:43,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:47:43,670 INFO L82 PathProgramCache]: Analyzing trace with hash -123632883, now seen corresponding path program 10 times [2020-10-22 00:47:43,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:47:43,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788155903] [2020-10-22 00:47:43,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:47:43,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:47:44,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:47:44,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788155903] [2020-10-22 00:47:44,189 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:47:44,189 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 00:47:44,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1833692716] [2020-10-22 00:47:44,189 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:47:44,191 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:47:44,196 INFO L252 McrAutomatonBuilder]: Finished intersection with 17 states and 16 transitions. [2020-10-22 00:47:44,196 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:47:44,197 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:47:44,197 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 00:47:44,197 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:47:44,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 00:47:44,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-22 00:47:44,198 INFO L87 Difference]: Start difference. First operand 77 states and 126 transitions. Second operand 10 states. [2020-10-22 00:47:44,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:47:44,547 INFO L93 Difference]: Finished difference Result 99 states and 158 transitions. [2020-10-22 00:47:44,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-22 00:47:44,548 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 00:47:44,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:47:44,549 INFO L225 Difference]: With dead ends: 99 [2020-10-22 00:47:44,550 INFO L226 Difference]: Without dead ends: 82 [2020-10-22 00:47:44,550 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-22 00:47:44,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-10-22 00:47:44,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 77. [2020-10-22 00:47:44,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-10-22 00:47:44,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 125 transitions. [2020-10-22 00:47:44,553 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 125 transitions. Word has length 16 [2020-10-22 00:47:44,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:47:44,554 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 125 transitions. [2020-10-22 00:47:44,554 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 00:47:44,554 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 125 transitions. [2020-10-22 00:47:44,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 00:47:44,555 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:47:44,555 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:47:44,555 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-22 00:47:44,555 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:47:44,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:47:44,556 INFO L82 PathProgramCache]: Analyzing trace with hash -1031972303, now seen corresponding path program 11 times [2020-10-22 00:47:44,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:47:44,562 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990862430] [2020-10-22 00:47:44,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:47:44,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:47:45,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:47:45,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990862430] [2020-10-22 00:47:45,049 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:47:45,049 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 00:47:45,049 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2123898319] [2020-10-22 00:47:45,049 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:47:45,052 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:47:45,056 INFO L252 McrAutomatonBuilder]: Finished intersection with 17 states and 16 transitions. [2020-10-22 00:47:45,056 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:47:45,056 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:47:45,057 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 00:47:45,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:47:45,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 00:47:45,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-22 00:47:45,057 INFO L87 Difference]: Start difference. First operand 77 states and 125 transitions. Second operand 10 states. [2020-10-22 00:47:45,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:47:45,432 INFO L93 Difference]: Finished difference Result 96 states and 152 transitions. [2020-10-22 00:47:45,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-22 00:47:45,432 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 00:47:45,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:47:45,433 INFO L225 Difference]: With dead ends: 96 [2020-10-22 00:47:45,433 INFO L226 Difference]: Without dead ends: 83 [2020-10-22 00:47:45,434 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2020-10-22 00:47:45,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-10-22 00:47:45,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 78. [2020-10-22 00:47:45,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-10-22 00:47:45,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 126 transitions. [2020-10-22 00:47:45,438 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 126 transitions. Word has length 16 [2020-10-22 00:47:45,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:47:45,438 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 126 transitions. [2020-10-22 00:47:45,438 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 00:47:45,438 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 126 transitions. [2020-10-22 00:47:45,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 00:47:45,439 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:47:45,439 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:47:45,439 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-22 00:47:45,439 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:47:45,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:47:45,439 INFO L82 PathProgramCache]: Analyzing trace with hash -1144930675, now seen corresponding path program 12 times [2020-10-22 00:47:45,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:47:45,446 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166156766] [2020-10-22 00:47:45,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:47:45,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:47:45,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:47:45,857 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166156766] [2020-10-22 00:47:45,857 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:47:45,857 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 00:47:45,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1966759851] [2020-10-22 00:47:45,857 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:47:45,861 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:47:45,864 INFO L252 McrAutomatonBuilder]: Finished intersection with 17 states and 16 transitions. [2020-10-22 00:47:45,865 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:47:45,865 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:47:45,867 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 00:47:45,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:47:45,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 00:47:45,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-22 00:47:45,868 INFO L87 Difference]: Start difference. First operand 78 states and 126 transitions. Second operand 10 states. [2020-10-22 00:47:46,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:47:46,249 INFO L93 Difference]: Finished difference Result 96 states and 151 transitions. [2020-10-22 00:47:46,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-22 00:47:46,249 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 00:47:46,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:47:46,250 INFO L225 Difference]: With dead ends: 96 [2020-10-22 00:47:46,250 INFO L226 Difference]: Without dead ends: 77 [2020-10-22 00:47:46,251 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2020-10-22 00:47:46,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-10-22 00:47:46,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 72. [2020-10-22 00:47:46,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-10-22 00:47:46,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 116 transitions. [2020-10-22 00:47:46,254 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 116 transitions. Word has length 16 [2020-10-22 00:47:46,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:47:46,254 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 116 transitions. [2020-10-22 00:47:46,255 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 00:47:46,255 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 116 transitions. [2020-10-22 00:47:46,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 00:47:46,255 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:47:46,255 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:47:46,256 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-22 00:47:46,256 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:47:46,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:47:46,256 INFO L82 PathProgramCache]: Analyzing trace with hash 23037531, now seen corresponding path program 13 times [2020-10-22 00:47:46,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:47:46,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916775800] [2020-10-22 00:47:46,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:47:46,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:47:46,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:47:46,611 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916775800] [2020-10-22 00:47:46,612 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:47:46,612 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 00:47:46,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [887192790] [2020-10-22 00:47:46,612 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:47:46,617 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:47:46,631 INFO L252 McrAutomatonBuilder]: Finished intersection with 21 states and 24 transitions. [2020-10-22 00:47:46,632 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:47:46,809 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 19 [2020-10-22 00:47:46,970 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 22 [2020-10-22 00:47:47,034 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:47:47,034 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 00:47:47,035 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:47:47,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 00:47:47,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-22 00:47:47,036 INFO L87 Difference]: Start difference. First operand 72 states and 116 transitions. Second operand 10 states. [2020-10-22 00:47:47,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:47:47,403 INFO L93 Difference]: Finished difference Result 95 states and 147 transitions. [2020-10-22 00:47:47,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-22 00:47:47,404 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 00:47:47,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:47:47,404 INFO L225 Difference]: With dead ends: 95 [2020-10-22 00:47:47,405 INFO L226 Difference]: Without dead ends: 84 [2020-10-22 00:47:47,405 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-22 00:47:47,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-10-22 00:47:47,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 74. [2020-10-22 00:47:47,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-22 00:47:47,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 118 transitions. [2020-10-22 00:47:47,409 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 118 transitions. Word has length 16 [2020-10-22 00:47:47,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:47:47,409 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 118 transitions. [2020-10-22 00:47:47,409 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 00:47:47,409 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 118 transitions. [2020-10-22 00:47:47,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 00:47:47,410 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:47:47,410 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:47:47,410 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-22 00:47:47,410 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:47:47,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:47:47,411 INFO L82 PathProgramCache]: Analyzing trace with hash 1641480709, now seen corresponding path program 14 times [2020-10-22 00:47:47,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:47:47,413 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838613839] [2020-10-22 00:47:47,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:47:47,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:47:47,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:47:47,827 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838613839] [2020-10-22 00:47:47,827 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:47:47,827 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 00:47:47,827 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [475783437] [2020-10-22 00:47:47,827 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:47:47,829 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:47:47,834 INFO L252 McrAutomatonBuilder]: Finished intersection with 20 states and 22 transitions. [2020-10-22 00:47:47,834 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:47:48,003 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:47:48,004 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 00:47:48,004 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:47:48,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 00:47:48,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-22 00:47:48,005 INFO L87 Difference]: Start difference. First operand 74 states and 118 transitions. Second operand 10 states. [2020-10-22 00:47:48,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:47:48,419 INFO L93 Difference]: Finished difference Result 97 states and 150 transitions. [2020-10-22 00:47:48,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-22 00:47:48,419 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 00:47:48,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:47:48,420 INFO L225 Difference]: With dead ends: 97 [2020-10-22 00:47:48,420 INFO L226 Difference]: Without dead ends: 82 [2020-10-22 00:47:48,420 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-22 00:47:48,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-10-22 00:47:48,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 72. [2020-10-22 00:47:48,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-10-22 00:47:48,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 114 transitions. [2020-10-22 00:47:48,424 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 114 transitions. Word has length 16 [2020-10-22 00:47:48,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:47:48,424 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 114 transitions. [2020-10-22 00:47:48,424 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 00:47:48,425 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 114 transitions. [2020-10-22 00:47:48,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 00:47:48,425 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:47:48,425 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:47:48,425 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-22 00:47:48,426 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:47:48,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:47:48,426 INFO L82 PathProgramCache]: Analyzing trace with hash -1892099271, now seen corresponding path program 1 times [2020-10-22 00:47:48,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:47:48,432 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566368840] [2020-10-22 00:47:48,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:47:48,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:47:48,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:47:48,531 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566368840] [2020-10-22 00:47:48,532 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:47:48,532 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-22 00:47:48,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1992141317] [2020-10-22 00:47:48,532 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:47:48,535 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:47:48,539 INFO L252 McrAutomatonBuilder]: Finished intersection with 19 states and 20 transitions. [2020-10-22 00:47:48,539 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:47:48,633 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:47:48,634 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-22 00:47:48,634 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:47:48,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-22 00:47:48,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-22 00:47:48,635 INFO L87 Difference]: Start difference. First operand 72 states and 114 transitions. Second operand 8 states. [2020-10-22 00:47:48,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:47:48,948 INFO L93 Difference]: Finished difference Result 63 states and 95 transitions. [2020-10-22 00:47:48,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-22 00:47:48,949 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 16 [2020-10-22 00:47:48,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:47:48,950 INFO L225 Difference]: With dead ends: 63 [2020-10-22 00:47:48,950 INFO L226 Difference]: Without dead ends: 63 [2020-10-22 00:47:48,950 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2020-10-22 00:47:48,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-10-22 00:47:48,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 59. [2020-10-22 00:47:48,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-10-22 00:47:48,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 89 transitions. [2020-10-22 00:47:48,952 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 89 transitions. Word has length 16 [2020-10-22 00:47:48,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:47:48,953 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 89 transitions. [2020-10-22 00:47:48,953 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-22 00:47:48,953 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 89 transitions. [2020-10-22 00:47:48,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 00:47:48,953 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:47:48,954 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:47:48,954 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-22 00:47:48,954 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:47:48,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:47:48,954 INFO L82 PathProgramCache]: Analyzing trace with hash -1908784089, now seen corresponding path program 15 times [2020-10-22 00:47:48,955 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:47:48,956 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634427195] [2020-10-22 00:47:48,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:47:49,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:47:49,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:47:49,357 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634427195] [2020-10-22 00:47:49,357 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:47:49,357 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 00:47:49,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1538451531] [2020-10-22 00:47:49,358 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:47:49,361 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:47:49,365 INFO L252 McrAutomatonBuilder]: Finished intersection with 19 states and 20 transitions. [2020-10-22 00:47:49,365 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:47:49,501 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:47:49,502 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 00:47:49,502 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:47:49,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 00:47:49,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-22 00:47:49,503 INFO L87 Difference]: Start difference. First operand 59 states and 89 transitions. Second operand 10 states. [2020-10-22 00:47:49,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:47:49,902 INFO L93 Difference]: Finished difference Result 68 states and 97 transitions. [2020-10-22 00:47:49,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-22 00:47:49,903 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 00:47:49,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:47:49,903 INFO L225 Difference]: With dead ends: 68 [2020-10-22 00:47:49,904 INFO L226 Difference]: Without dead ends: 58 [2020-10-22 00:47:49,904 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-22 00:47:49,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-10-22 00:47:49,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 57. [2020-10-22 00:47:49,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-10-22 00:47:49,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 85 transitions. [2020-10-22 00:47:49,906 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 85 transitions. Word has length 16 [2020-10-22 00:47:49,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:47:49,907 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 85 transitions. [2020-10-22 00:47:49,907 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 00:47:49,907 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 85 transitions. [2020-10-22 00:47:49,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 00:47:49,912 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:47:49,912 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:47:49,912 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-22 00:47:49,912 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:47:49,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:47:49,913 INFO L82 PathProgramCache]: Analyzing trace with hash -899896281, now seen corresponding path program 16 times [2020-10-22 00:47:49,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:47:49,914 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012302561] [2020-10-22 00:47:49,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:47:49,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:47:50,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:47:50,269 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012302561] [2020-10-22 00:47:50,270 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:47:50,270 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 00:47:50,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [739885101] [2020-10-22 00:47:50,270 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:47:50,272 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:47:50,276 INFO L252 McrAutomatonBuilder]: Finished intersection with 21 states and 24 transitions. [2020-10-22 00:47:50,276 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:47:50,519 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 25 [2020-10-22 00:47:50,520 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:47:50,521 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 00:47:50,521 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:47:50,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 00:47:50,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-22 00:47:50,522 INFO L87 Difference]: Start difference. First operand 57 states and 85 transitions. Second operand 10 states. [2020-10-22 00:47:50,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:47:50,902 INFO L93 Difference]: Finished difference Result 79 states and 113 transitions. [2020-10-22 00:47:50,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-22 00:47:50,903 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 00:47:50,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:47:50,903 INFO L225 Difference]: With dead ends: 79 [2020-10-22 00:47:50,903 INFO L226 Difference]: Without dead ends: 68 [2020-10-22 00:47:50,904 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2020-10-22 00:47:50,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-10-22 00:47:50,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 57. [2020-10-22 00:47:50,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-10-22 00:47:50,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 83 transitions. [2020-10-22 00:47:50,906 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 83 transitions. Word has length 16 [2020-10-22 00:47:50,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:47:50,907 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 83 transitions. [2020-10-22 00:47:50,907 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 00:47:50,907 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 83 transitions. [2020-10-22 00:47:50,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 00:47:50,907 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:47:50,908 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:47:50,908 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-22 00:47:50,908 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:47:50,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:47:50,908 INFO L82 PathProgramCache]: Analyzing trace with hash 831505269, now seen corresponding path program 17 times [2020-10-22 00:47:50,909 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:47:50,909 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131813579] [2020-10-22 00:47:50,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:47:50,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:47:51,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:47:51,329 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131813579] [2020-10-22 00:47:51,329 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:47:51,329 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 00:47:51,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1397069290] [2020-10-22 00:47:51,329 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:47:51,331 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:47:51,335 INFO L252 McrAutomatonBuilder]: Finished intersection with 20 states and 22 transitions. [2020-10-22 00:47:51,335 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:47:51,461 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:47:51,461 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 00:47:51,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:47:51,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 00:47:51,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-22 00:47:51,462 INFO L87 Difference]: Start difference. First operand 57 states and 83 transitions. Second operand 10 states. [2020-10-22 00:47:51,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:47:51,827 INFO L93 Difference]: Finished difference Result 79 states and 112 transitions. [2020-10-22 00:47:51,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-22 00:47:51,827 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 00:47:51,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:47:51,828 INFO L225 Difference]: With dead ends: 79 [2020-10-22 00:47:51,828 INFO L226 Difference]: Without dead ends: 64 [2020-10-22 00:47:51,829 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-22 00:47:51,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-10-22 00:47:51,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 54. [2020-10-22 00:47:51,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-22 00:47:51,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 77 transitions. [2020-10-22 00:47:51,833 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 77 transitions. Word has length 16 [2020-10-22 00:47:51,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:47:51,833 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 77 transitions. [2020-10-22 00:47:51,833 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 00:47:51,833 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 77 transitions. [2020-10-22 00:47:51,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 00:47:51,834 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:47:51,834 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:47:51,834 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-22 00:47:51,834 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:47:51,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:47:51,835 INFO L82 PathProgramCache]: Analyzing trace with hash -501689167, now seen corresponding path program 18 times [2020-10-22 00:47:51,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:47:51,836 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151004011] [2020-10-22 00:47:51,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:47:51,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:47:52,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:47:52,234 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151004011] [2020-10-22 00:47:52,234 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:47:52,234 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 00:47:52,234 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [469012610] [2020-10-22 00:47:52,234 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:47:52,237 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:47:52,241 INFO L252 McrAutomatonBuilder]: Finished intersection with 21 states and 24 transitions. [2020-10-22 00:47:52,241 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:47:52,474 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:47:52,475 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 00:47:52,475 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:47:52,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 00:47:52,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-22 00:47:52,476 INFO L87 Difference]: Start difference. First operand 54 states and 77 transitions. Second operand 10 states. [2020-10-22 00:47:52,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:47:52,836 INFO L93 Difference]: Finished difference Result 70 states and 97 transitions. [2020-10-22 00:47:52,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-22 00:47:52,837 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 00:47:52,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:47:52,838 INFO L225 Difference]: With dead ends: 70 [2020-10-22 00:47:52,839 INFO L226 Difference]: Without dead ends: 59 [2020-10-22 00:47:52,839 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2020-10-22 00:47:52,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-10-22 00:47:52,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 48. [2020-10-22 00:47:52,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-22 00:47:52,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 68 transitions. [2020-10-22 00:47:52,841 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 68 transitions. Word has length 16 [2020-10-22 00:47:52,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:47:52,841 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 68 transitions. [2020-10-22 00:47:52,842 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 00:47:52,842 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 68 transitions. [2020-10-22 00:47:52,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 00:47:52,842 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:47:52,842 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:47:52,842 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-22 00:47:52,843 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:47:52,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:47:52,843 INFO L82 PathProgramCache]: Analyzing trace with hash 1116754011, now seen corresponding path program 19 times [2020-10-22 00:47:52,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:47:52,848 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279110654] [2020-10-22 00:47:52,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:47:52,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:47:53,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:47:53,201 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279110654] [2020-10-22 00:47:53,202 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:47:53,202 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 00:47:53,202 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [597535435] [2020-10-22 00:47:53,202 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:47:53,204 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:47:53,209 INFO L252 McrAutomatonBuilder]: Finished intersection with 20 states and 22 transitions. [2020-10-22 00:47:53,209 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:47:53,396 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:47:53,396 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 00:47:53,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:47:53,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 00:47:53,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-22 00:47:53,397 INFO L87 Difference]: Start difference. First operand 48 states and 68 transitions. Second operand 10 states. [2020-10-22 00:47:53,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:47:53,782 INFO L93 Difference]: Finished difference Result 66 states and 90 transitions. [2020-10-22 00:47:53,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-22 00:47:53,783 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 00:47:53,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:47:53,783 INFO L225 Difference]: With dead ends: 66 [2020-10-22 00:47:53,784 INFO L226 Difference]: Without dead ends: 57 [2020-10-22 00:47:53,784 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-22 00:47:53,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-10-22 00:47:53,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 46. [2020-10-22 00:47:53,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-22 00:47:53,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 64 transitions. [2020-10-22 00:47:53,787 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 64 transitions. Word has length 16 [2020-10-22 00:47:53,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:47:53,787 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 64 transitions. [2020-10-22 00:47:53,787 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 00:47:53,787 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 64 transitions. [2020-10-22 00:47:53,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 00:47:53,788 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:47:53,788 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:47:53,788 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-22 00:47:53,788 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:47:53,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:47:53,788 INFO L82 PathProgramCache]: Analyzing trace with hash -536363765, now seen corresponding path program 20 times [2020-10-22 00:47:53,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:47:53,789 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625265344] [2020-10-22 00:47:53,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:47:53,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:47:54,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:47:54,199 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625265344] [2020-10-22 00:47:54,199 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:47:54,199 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 00:47:54,199 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [266555996] [2020-10-22 00:47:54,200 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:47:54,203 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:47:54,207 INFO L252 McrAutomatonBuilder]: Finished intersection with 19 states and 20 transitions. [2020-10-22 00:47:54,207 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:47:54,346 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 26 [2020-10-22 00:47:54,347 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:47:54,348 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 00:47:54,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:47:54,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 00:47:54,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-22 00:47:54,349 INFO L87 Difference]: Start difference. First operand 46 states and 64 transitions. Second operand 10 states. [2020-10-22 00:47:54,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:47:54,775 INFO L93 Difference]: Finished difference Result 59 states and 81 transitions. [2020-10-22 00:47:54,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-22 00:47:54,776 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 00:47:54,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:47:54,777 INFO L225 Difference]: With dead ends: 59 [2020-10-22 00:47:54,777 INFO L226 Difference]: Without dead ends: 49 [2020-10-22 00:47:54,777 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-10-22 00:47:54,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-10-22 00:47:54,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 47. [2020-10-22 00:47:54,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-22 00:47:54,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 65 transitions. [2020-10-22 00:47:54,781 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 65 transitions. Word has length 16 [2020-10-22 00:47:54,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:47:54,781 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 65 transitions. [2020-10-22 00:47:54,782 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 00:47:54,782 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 65 transitions. [2020-10-22 00:47:54,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 00:47:54,782 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:47:54,782 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:47:54,783 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-22 00:47:54,783 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:47:54,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:47:54,783 INFO L82 PathProgramCache]: Analyzing trace with hash -649322137, now seen corresponding path program 21 times [2020-10-22 00:47:54,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:47:54,791 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547662812] [2020-10-22 00:47:54,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:47:54,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:47:55,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:47:55,173 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547662812] [2020-10-22 00:47:55,173 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:47:55,173 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 00:47:55,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [466963378] [2020-10-22 00:47:55,174 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:47:55,176 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:47:55,179 INFO L252 McrAutomatonBuilder]: Finished intersection with 19 states and 20 transitions. [2020-10-22 00:47:55,179 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:47:55,318 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:47:55,318 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 00:47:55,318 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:47:55,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 00:47:55,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-22 00:47:55,319 INFO L87 Difference]: Start difference. First operand 47 states and 65 transitions. Second operand 10 states. [2020-10-22 00:47:55,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:47:55,720 INFO L93 Difference]: Finished difference Result 55 states and 73 transitions. [2020-10-22 00:47:55,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-22 00:47:55,720 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 00:47:55,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:47:55,721 INFO L225 Difference]: With dead ends: 55 [2020-10-22 00:47:55,721 INFO L226 Difference]: Without dead ends: 45 [2020-10-22 00:47:55,721 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-10-22 00:47:55,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-10-22 00:47:55,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 44. [2020-10-22 00:47:55,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-10-22 00:47:55,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 60 transitions. [2020-10-22 00:47:55,724 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 60 transitions. Word has length 16 [2020-10-22 00:47:55,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:47:55,724 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 60 transitions. [2020-10-22 00:47:55,724 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 00:47:55,724 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 60 transitions. [2020-10-22 00:47:55,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 00:47:55,725 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:47:55,725 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:47:55,725 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-22 00:47:55,725 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:47:55,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:47:55,725 INFO L82 PathProgramCache]: Analyzing trace with hash -822569829, now seen corresponding path program 22 times [2020-10-22 00:47:55,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:47:55,726 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188382677] [2020-10-22 00:47:55,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:47:55,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:47:56,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:47:56,110 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188382677] [2020-10-22 00:47:56,110 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:47:56,110 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 00:47:56,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [367400815] [2020-10-22 00:47:56,110 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:47:56,113 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:47:56,117 INFO L252 McrAutomatonBuilder]: Finished intersection with 18 states and 18 transitions. [2020-10-22 00:47:56,117 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:47:56,154 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:47:56,155 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 00:47:56,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:47:56,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 00:47:56,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-22 00:47:56,156 INFO L87 Difference]: Start difference. First operand 44 states and 60 transitions. Second operand 10 states. [2020-10-22 00:47:56,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:47:56,517 INFO L93 Difference]: Finished difference Result 51 states and 66 transitions. [2020-10-22 00:47:56,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-22 00:47:56,518 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 00:47:56,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:47:56,519 INFO L225 Difference]: With dead ends: 51 [2020-10-22 00:47:56,519 INFO L226 Difference]: Without dead ends: 43 [2020-10-22 00:47:56,519 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-22 00:47:56,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-10-22 00:47:56,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-10-22 00:47:56,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-10-22 00:47:56,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 58 transitions. [2020-10-22 00:47:56,521 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 58 transitions. Word has length 16 [2020-10-22 00:47:56,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:47:56,521 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 58 transitions. [2020-10-22 00:47:56,521 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 00:47:56,522 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 58 transitions. [2020-10-22 00:47:56,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 00:47:56,522 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:47:56,522 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:47:56,522 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-22 00:47:56,522 INFO L429 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:47:56,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:47:56,523 INFO L82 PathProgramCache]: Analyzing trace with hash 1074577193, now seen corresponding path program 23 times [2020-10-22 00:47:56,531 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:47:56,531 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262531925] [2020-10-22 00:47:56,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:47:56,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:47:56,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:47:56,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262531925] [2020-10-22 00:47:56,919 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:47:56,920 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 00:47:56,920 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1498150427] [2020-10-22 00:47:56,920 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:47:56,922 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:47:56,925 INFO L252 McrAutomatonBuilder]: Finished intersection with 18 states and 18 transitions. [2020-10-22 00:47:56,926 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:47:56,961 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:47:56,961 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 00:47:56,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:47:56,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 00:47:56,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-22 00:47:56,962 INFO L87 Difference]: Start difference. First operand 43 states and 58 transitions. Second operand 10 states. [2020-10-22 00:47:57,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:47:57,383 INFO L93 Difference]: Finished difference Result 53 states and 70 transitions. [2020-10-22 00:47:57,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-22 00:47:57,383 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 00:47:57,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:47:57,384 INFO L225 Difference]: With dead ends: 53 [2020-10-22 00:47:57,384 INFO L226 Difference]: Without dead ends: 43 [2020-10-22 00:47:57,384 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-10-22 00:47:57,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-10-22 00:47:57,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-10-22 00:47:57,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-10-22 00:47:57,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 57 transitions. [2020-10-22 00:47:57,386 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 57 transitions. Word has length 16 [2020-10-22 00:47:57,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:47:57,387 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 57 transitions. [2020-10-22 00:47:57,387 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 00:47:57,387 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 57 transitions. [2020-10-22 00:47:57,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 00:47:57,387 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:47:57,387 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:47:57,387 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-22 00:47:57,388 INFO L429 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:47:57,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:47:57,388 INFO L82 PathProgramCache]: Analyzing trace with hash 961618821, now seen corresponding path program 24 times [2020-10-22 00:47:57,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:47:57,389 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305320202] [2020-10-22 00:47:57,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:47:57,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:47:57,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:47:57,776 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305320202] [2020-10-22 00:47:57,776 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:47:57,776 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 00:47:57,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2027630353] [2020-10-22 00:47:57,777 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:47:57,779 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:47:57,782 INFO L252 McrAutomatonBuilder]: Finished intersection with 18 states and 18 transitions. [2020-10-22 00:47:57,782 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:47:57,818 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:47:57,819 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 00:47:57,819 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:47:57,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 00:47:57,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-22 00:47:57,820 INFO L87 Difference]: Start difference. First operand 43 states and 57 transitions. Second operand 10 states. [2020-10-22 00:47:58,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:47:58,200 INFO L93 Difference]: Finished difference Result 49 states and 62 transitions. [2020-10-22 00:47:58,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-22 00:47:58,200 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 00:47:58,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:47:58,201 INFO L225 Difference]: With dead ends: 49 [2020-10-22 00:47:58,201 INFO L226 Difference]: Without dead ends: 38 [2020-10-22 00:47:58,202 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-10-22 00:47:58,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-22 00:47:58,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-10-22 00:47:58,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-22 00:47:58,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 50 transitions. [2020-10-22 00:47:58,204 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 50 transitions. Word has length 16 [2020-10-22 00:47:58,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:47:58,204 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 50 transitions. [2020-10-22 00:47:58,204 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 00:47:58,204 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 50 transitions. [2020-10-22 00:47:58,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 00:47:58,204 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:47:58,204 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:47:58,204 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-22 00:47:58,205 INFO L429 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:47:58,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:47:58,205 INFO L82 PathProgramCache]: Analyzing trace with hash 540025319, now seen corresponding path program 25 times [2020-10-22 00:47:58,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:47:58,206 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718772035] [2020-10-22 00:47:58,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:47:58,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:47:58,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:47:58,744 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718772035] [2020-10-22 00:47:58,745 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:47:58,745 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 00:47:58,745 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1724687322] [2020-10-22 00:47:58,745 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:47:58,750 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:47:58,755 INFO L252 McrAutomatonBuilder]: Finished intersection with 17 states and 16 transitions. [2020-10-22 00:47:58,756 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:47:58,756 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:47:58,757 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 00:47:58,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:47:58,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 00:47:58,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-22 00:47:58,758 INFO L87 Difference]: Start difference. First operand 38 states and 50 transitions. Second operand 10 states. [2020-10-22 00:47:59,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:47:59,297 INFO L93 Difference]: Finished difference Result 38 states and 49 transitions. [2020-10-22 00:47:59,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-22 00:47:59,298 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 00:47:59,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:47:59,298 INFO L225 Difference]: With dead ends: 38 [2020-10-22 00:47:59,299 INFO L226 Difference]: Without dead ends: 24 [2020-10-22 00:47:59,299 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-22 00:47:59,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-10-22 00:47:59,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-10-22 00:47:59,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-10-22 00:47:59,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2020-10-22 00:47:59,302 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 29 transitions. Word has length 16 [2020-10-22 00:47:59,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:47:59,303 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 29 transitions. [2020-10-22 00:47:59,304 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 00:47:59,304 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2020-10-22 00:47:59,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 00:47:59,304 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:47:59,305 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:47:59,305 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-10-22 00:47:59,305 INFO L429 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:47:59,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:47:59,306 INFO L82 PathProgramCache]: Analyzing trace with hash -368314139, now seen corresponding path program 4 times [2020-10-22 00:47:59,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:47:59,308 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548408699] [2020-10-22 00:47:59,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:47:59,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:47:59,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:47:59,788 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548408699] [2020-10-22 00:47:59,788 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:47:59,789 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-22 00:47:59,789 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1712983807] [2020-10-22 00:47:59,789 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:47:59,794 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:47:59,799 INFO L252 McrAutomatonBuilder]: Finished intersection with 17 states and 16 transitions. [2020-10-22 00:47:59,799 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:47:59,800 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:47:59,800 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-22 00:47:59,801 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:47:59,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-22 00:47:59,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-22 00:47:59,801 INFO L87 Difference]: Start difference. First operand 24 states and 29 transitions. Second operand 9 states. [2020-10-22 00:48:00,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:48:00,202 INFO L93 Difference]: Finished difference Result 23 states and 28 transitions. [2020-10-22 00:48:00,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-22 00:48:00,202 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 16 [2020-10-22 00:48:00,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:48:00,203 INFO L225 Difference]: With dead ends: 23 [2020-10-22 00:48:00,203 INFO L226 Difference]: Without dead ends: 23 [2020-10-22 00:48:00,204 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2020-10-22 00:48:00,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-10-22 00:48:00,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-10-22 00:48:00,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-22 00:48:00,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 28 transitions. [2020-10-22 00:48:00,206 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 28 transitions. Word has length 16 [2020-10-22 00:48:00,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:48:00,206 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 28 transitions. [2020-10-22 00:48:00,206 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-22 00:48:00,207 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2020-10-22 00:48:00,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 00:48:00,207 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:48:00,207 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:48:00,207 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-10-22 00:48:00,208 INFO L429 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:48:00,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:48:00,208 INFO L82 PathProgramCache]: Analyzing trace with hash -368314101, now seen corresponding path program 26 times [2020-10-22 00:48:00,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:48:00,210 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141527383] [2020-10-22 00:48:00,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:48:00,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:48:00,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:48:00,772 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141527383] [2020-10-22 00:48:00,772 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:48:00,773 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 00:48:00,773 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1447099006] [2020-10-22 00:48:00,773 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:48:00,779 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:48:00,787 INFO L252 McrAutomatonBuilder]: Finished intersection with 17 states and 16 transitions. [2020-10-22 00:48:00,787 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:48:00,788 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:48:00,790 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 00:48:00,790 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:48:00,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 00:48:00,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-22 00:48:00,791 INFO L87 Difference]: Start difference. First operand 23 states and 28 transitions. Second operand 10 states. [2020-10-22 00:48:01,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:48:01,189 INFO L93 Difference]: Finished difference Result 35 states and 43 transitions. [2020-10-22 00:48:01,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-22 00:48:01,190 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 00:48:01,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:48:01,190 INFO L225 Difference]: With dead ends: 35 [2020-10-22 00:48:01,190 INFO L226 Difference]: Without dead ends: 25 [2020-10-22 00:48:01,190 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-10-22 00:48:01,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-10-22 00:48:01,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2020-10-22 00:48:01,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-10-22 00:48:01,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2020-10-22 00:48:01,192 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 29 transitions. Word has length 16 [2020-10-22 00:48:01,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:48:01,192 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 29 transitions. [2020-10-22 00:48:01,192 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 00:48:01,192 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2020-10-22 00:48:01,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 00:48:01,193 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:48:01,193 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:48:01,193 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-10-22 00:48:01,193 INFO L429 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:48:01,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:48:01,193 INFO L82 PathProgramCache]: Analyzing trace with hash -481272473, now seen corresponding path program 27 times [2020-10-22 00:48:01,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:48:01,195 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120303379] [2020-10-22 00:48:01,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:48:01,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:48:01,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:48:01,598 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120303379] [2020-10-22 00:48:01,599 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:48:01,599 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 00:48:01,599 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [388514225] [2020-10-22 00:48:01,599 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:48:01,602 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:48:01,606 INFO L252 McrAutomatonBuilder]: Finished intersection with 17 states and 16 transitions. [2020-10-22 00:48:01,606 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:48:01,607 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:48:01,607 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 00:48:01,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:48:01,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 00:48:01,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-22 00:48:01,608 INFO L87 Difference]: Start difference. First operand 24 states and 29 transitions. Second operand 10 states. [2020-10-22 00:48:01,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:48:01,973 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2020-10-22 00:48:01,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-22 00:48:01,973 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 00:48:01,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:48:01,974 INFO L225 Difference]: With dead ends: 31 [2020-10-22 00:48:01,974 INFO L226 Difference]: Without dead ends: 22 [2020-10-22 00:48:01,974 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-10-22 00:48:01,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-10-22 00:48:01,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-10-22 00:48:01,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-22 00:48:01,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2020-10-22 00:48:01,976 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 16 [2020-10-22 00:48:01,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:48:01,976 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2020-10-22 00:48:01,976 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 00:48:01,976 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2020-10-22 00:48:01,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 00:48:01,976 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:48:01,976 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:48:01,977 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-10-22 00:48:01,977 INFO L429 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:48:01,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:48:01,978 INFO L82 PathProgramCache]: Analyzing trace with hash -659771717, now seen corresponding path program 28 times [2020-10-22 00:48:01,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:48:01,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194187193] [2020-10-22 00:48:01,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:48:02,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:48:02,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:48:02,453 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194187193] [2020-10-22 00:48:02,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:48:02,453 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 00:48:02,455 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [104448667] [2020-10-22 00:48:02,455 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:48:02,462 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:48:02,467 INFO L252 McrAutomatonBuilder]: Finished intersection with 17 states and 16 transitions. [2020-10-22 00:48:02,467 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:48:02,468 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:48:02,470 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 00:48:02,471 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:48:02,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 00:48:02,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-22 00:48:02,472 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand 10 states. [2020-10-22 00:48:02,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:48:02,762 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2020-10-22 00:48:02,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-22 00:48:02,762 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 00:48:02,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:48:02,763 INFO L225 Difference]: With dead ends: 29 [2020-10-22 00:48:02,763 INFO L226 Difference]: Without dead ends: 21 [2020-10-22 00:48:02,763 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-22 00:48:02,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-10-22 00:48:02,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-10-22 00:48:02,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-10-22 00:48:02,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2020-10-22 00:48:02,765 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 16 [2020-10-22 00:48:02,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:48:02,765 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2020-10-22 00:48:02,770 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 00:48:02,770 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2020-10-22 00:48:02,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 00:48:02,770 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:48:02,771 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:48:02,771 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-10-22 00:48:02,771 INFO L429 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:48:02,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:48:02,771 INFO L82 PathProgramCache]: Analyzing trace with hash 1237375305, now seen corresponding path program 29 times [2020-10-22 00:48:02,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:48:02,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296036027] [2020-10-22 00:48:02,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:48:02,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:48:03,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:48:03,224 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296036027] [2020-10-22 00:48:03,224 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:48:03,224 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 00:48:03,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1440031655] [2020-10-22 00:48:03,225 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:48:03,228 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:48:03,232 INFO L252 McrAutomatonBuilder]: Finished intersection with 17 states and 16 transitions. [2020-10-22 00:48:03,232 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:48:03,233 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:48:03,237 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 00:48:03,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:48:03,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 00:48:03,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-22 00:48:03,239 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand 10 states. [2020-10-22 00:48:03,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:48:03,620 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2020-10-22 00:48:03,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-22 00:48:03,620 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 00:48:03,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:48:03,621 INFO L225 Difference]: With dead ends: 27 [2020-10-22 00:48:03,621 INFO L226 Difference]: Without dead ends: 17 [2020-10-22 00:48:03,621 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-10-22 00:48:03,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-10-22 00:48:03,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-10-22 00:48:03,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-10-22 00:48:03,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 16 transitions. [2020-10-22 00:48:03,623 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 16 transitions. Word has length 16 [2020-10-22 00:48:03,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:48:03,623 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 16 transitions. [2020-10-22 00:48:03,623 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 00:48:03,623 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 16 transitions. [2020-10-22 00:48:03,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 00:48:03,623 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:48:03,624 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:48:03,624 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-10-22 00:48:03,624 INFO L429 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:48:03,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:48:03,624 INFO L82 PathProgramCache]: Analyzing trace with hash 1124416933, now seen corresponding path program 30 times [2020-10-22 00:48:03,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:48:03,626 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196157470] [2020-10-22 00:48:03,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:48:03,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:48:04,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:48:04,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196157470] [2020-10-22 00:48:04,020 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:48:04,020 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 00:48:04,020 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [244484956] [2020-10-22 00:48:04,020 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:48:04,051 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:48:04,054 INFO L252 McrAutomatonBuilder]: Finished intersection with 17 states and 16 transitions. [2020-10-22 00:48:04,054 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:48:04,055 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:48:04,055 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 00:48:04,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:48:04,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 00:48:04,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-22 00:48:04,055 INFO L87 Difference]: Start difference. First operand 17 states and 16 transitions. Second operand 10 states. [2020-10-22 00:48:04,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:48:04,350 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2020-10-22 00:48:04,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-22 00:48:04,350 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 00:48:04,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:48:04,351 INFO L225 Difference]: With dead ends: 16 [2020-10-22 00:48:04,351 INFO L226 Difference]: Without dead ends: 0 [2020-10-22 00:48:04,351 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-10-22 00:48:04,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-22 00:48:04,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-22 00:48:04,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-22 00:48:04,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-22 00:48:04,352 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-10-22 00:48:04,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:48:04,352 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-22 00:48:04,352 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 00:48:04,352 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-22 00:48:04,352 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-22 00:48:04,352 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-10-22 00:48:04,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 12:48:04 BasicIcfg [2020-10-22 00:48:04,358 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-22 00:48:04,359 INFO L168 Benchmark]: Toolchain (without parser) took 50139.56 ms. Allocated memory was 139.5 MB in the beginning and 577.2 MB in the end (delta: 437.8 MB). Free memory was 99.7 MB in the beginning and 493.7 MB in the end (delta: -394.0 MB). Peak memory consumption was 43.7 MB. Max. memory is 7.1 GB. [2020-10-22 00:48:04,360 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-22 00:48:04,360 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1430.82 ms. Allocated memory was 139.5 MB in the beginning and 237.0 MB in the end (delta: 97.5 MB). Free memory was 98.8 MB in the beginning and 174.0 MB in the end (delta: -75.2 MB). Peak memory consumption was 78.0 MB. Max. memory is 7.1 GB. [2020-10-22 00:48:04,360 INFO L168 Benchmark]: Boogie Procedure Inliner took 109.70 ms. Allocated memory is still 237.0 MB. Free memory was 174.0 MB in the beginning and 169.6 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2020-10-22 00:48:04,361 INFO L168 Benchmark]: Boogie Preprocessor took 56.73 ms. Allocated memory is still 237.0 MB. Free memory was 169.6 MB in the beginning and 166.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2020-10-22 00:48:04,361 INFO L168 Benchmark]: RCFGBuilder took 1033.91 ms. Allocated memory is still 237.0 MB. Free memory was 166.6 MB in the beginning and 113.9 MB in the end (delta: 52.7 MB). Peak memory consumption was 52.7 MB. Max. memory is 7.1 GB. [2020-10-22 00:48:04,361 INFO L168 Benchmark]: TraceAbstraction took 47496.80 ms. Allocated memory was 237.0 MB in the beginning and 577.2 MB in the end (delta: 340.3 MB). Free memory was 113.9 MB in the beginning and 493.7 MB in the end (delta: -379.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-22 00:48:04,363 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1430.82 ms. Allocated memory was 139.5 MB in the beginning and 237.0 MB in the end (delta: 97.5 MB). Free memory was 98.8 MB in the beginning and 174.0 MB in the end (delta: -75.2 MB). Peak memory consumption was 78.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 109.70 ms. Allocated memory is still 237.0 MB. Free memory was 174.0 MB in the beginning and 169.6 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 56.73 ms. Allocated memory is still 237.0 MB. Free memory was 169.6 MB in the beginning and 166.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1033.91 ms. Allocated memory is still 237.0 MB. Free memory was 166.6 MB in the beginning and 113.9 MB in the end (delta: 52.7 MB). Peak memory consumption was 52.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 47496.80 ms. Allocated memory was 237.0 MB in the beginning and 577.2 MB in the end (delta: 340.3 MB). Free memory was 113.9 MB in the beginning and 493.7 MB in the end (delta: -379.8 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 980 VarBasedMoverChecksPositive, 37 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 19 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 13.0s, 168 PlacesBefore, 34 PlacesAfterwards, 178 TransitionsBefore, 32 TransitionsAfterwards, 1872 CoEnabledTransitionPairs, 8 FixpointIterations, 112 TrivialSequentialCompositions, 52 ConcurrentSequentialCompositions, 22 TrivialYvCompositions, 24 ConcurrentYvCompositions, 12 ChoiceCompositions, 222 TotalNumberOfCompositions, 3600 MoverChecksTotal - PositiveResult [Line: 1671]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1671]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1671]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1671]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1671]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1671]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 153 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 47.3s, OverallIterations: 39, TraceHistogramMax: 1, AutomataDifference: 14.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 13.1s, HoareTripleCheckerStatistics: 617 SDtfs, 507 SDslu, 1999 SDs, 0 SdLazy, 5154 SolverSat, 580 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 467 GetRequests, 75 SyntacticMatches, 16 SemanticMatches, 376 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 15.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=145occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 39 MinimizatonAttempts, 282 StatesRemovedByMinimization, 28 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 13.7s InterpolantComputationTime, 581 NumberOfCodeBlocks, 581 NumberOfCodeBlocksAsserted, 39 NumberOfCheckSat, 542 ConstructedInterpolants, 0 QuantifiedInterpolants, 185589 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 39 InterpolantComputations, 39 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...