/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/pthread-wmm/safe024_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 23:36:53,681 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 23:36:53,686 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 23:36:53,742 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 23:36:53,742 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 23:36:53,744 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 23:36:53,746 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 23:36:53,749 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 23:36:53,751 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 23:36:53,752 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 23:36:53,753 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 23:36:53,755 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 23:36:53,756 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 23:36:53,757 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 23:36:53,758 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 23:36:53,760 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 23:36:53,761 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 23:36:53,762 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 23:36:53,765 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 23:36:53,767 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 23:36:53,769 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 23:36:53,775 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 23:36:53,776 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 23:36:53,778 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 23:36:53,792 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-06 23:36:53,792 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-06 23:36:53,793 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-06 23:36:53,794 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-06 23:36:53,795 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-06 23:36:53,796 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-06 23:36:53,797 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-06 23:36:53,798 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-06 23:36:53,799 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-06 23:36:53,800 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-06 23:36:53,801 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-06 23:36:53,802 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-06 23:36:53,803 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-06 23:36:53,803 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-06 23:36:53,803 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 23:36:53,804 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 23:36:53,805 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 23:36:53,806 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-01-06 23:36:53,834 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 23:36:53,835 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 23:36:53,836 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 23:36:53,837 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 23:36:53,837 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 23:36:53,837 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 23:36:53,837 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 23:36:53,838 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 23:36:53,838 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 23:36:53,838 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 23:36:53,838 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 23:36:53,839 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 23:36:53,839 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 23:36:53,840 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 23:36:53,840 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 23:36:53,841 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 23:36:53,841 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 23:36:53,841 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 23:36:53,841 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 23:36:53,841 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 23:36:53,842 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 23:36:53,842 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 23:36:53,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 23:36:53,842 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 23:36:53,843 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 23:36:53,843 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 23:36:54,235 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 23:36:54,269 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 23:36:54,272 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 23:36:54,273 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 23:36:54,274 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 23:36:54,275 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe024_tso.opt.i [2021-01-06 23:36:54,364 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/f185659b6/e15ec00ad04346e0b3763ebf5585afba/FLAG3a86d25ed [2021-01-06 23:36:55,207 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 23:36:55,208 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe024_tso.opt.i [2021-01-06 23:36:55,233 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/f185659b6/e15ec00ad04346e0b3763ebf5585afba/FLAG3a86d25ed [2021-01-06 23:36:55,472 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/f185659b6/e15ec00ad04346e0b3763ebf5585afba [2021-01-06 23:36:55,475 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 23:36:55,478 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 23:36:55,479 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 23:36:55,480 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 23:36:55,483 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 23:36:55,484 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 11:36:55" (1/1) ... [2021-01-06 23:36:55,486 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dbeaa78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:36:55, skipping insertion in model container [2021-01-06 23:36:55,486 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 11:36:55" (1/1) ... [2021-01-06 23:36:55,494 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 23:36:55,538 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-06 23:36:55,704 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe024_tso.opt.i[949,962] left hand side expression in assignment: lhs: VariableLHS[~z~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p0_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p2_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p2_EBX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard1~0,GLOBAL] [2021-01-06 23:36:55,946 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 23:36:55,967 INFO L203 MainTranslator]: Completed pre-run [2021-01-06 23:36:55,992 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe024_tso.opt.i[949,962] left hand side expression in assignment: lhs: VariableLHS[~z~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p0_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p2_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p2_EBX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard1~0,GLOBAL] [2021-01-06 23:36:56,083 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 23:36:56,227 INFO L208 MainTranslator]: Completed translation [2021-01-06 23:36:56,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:36:56 WrapperNode [2021-01-06 23:36:56,228 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 23:36:56,229 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 23:36:56,229 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 23:36:56,229 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 23:36:56,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:36:56" (1/1) ... [2021-01-06 23:36:56,254 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:36:56" (1/1) ... [2021-01-06 23:36:56,278 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 23:36:56,280 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 23:36:56,280 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 23:36:56,280 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 23:36:56,291 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:36:56" (1/1) ... [2021-01-06 23:36:56,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:36:56" (1/1) ... [2021-01-06 23:36:56,295 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:36:56" (1/1) ... [2021-01-06 23:36:56,295 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:36:56" (1/1) ... [2021-01-06 23:36:56,302 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:36:56" (1/1) ... [2021-01-06 23:36:56,304 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:36:56" (1/1) ... [2021-01-06 23:36:56,306 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:36:56" (1/1) ... [2021-01-06 23:36:56,310 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 23:36:56,311 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 23:36:56,311 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 23:36:56,311 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 23:36:56,312 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:36:56" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 23:36:56,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-06 23:36:56,454 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-06 23:36:56,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 23:36:56,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-06 23:36:56,455 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-06 23:36:56,455 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-06 23:36:56,455 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-06 23:36:56,456 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-06 23:36:56,456 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-01-06 23:36:56,457 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-01-06 23:36:56,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 23:36:56,460 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-06 23:36:56,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 23:36:56,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 23:36:56,463 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-06 23:36:56,969 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 23:36:56,969 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-01-06 23:36:56,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:36:56 BoogieIcfgContainer [2021-01-06 23:36:56,972 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 23:36:56,973 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 23:36:56,974 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 23:36:56,977 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 23:36:56,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 11:36:55" (1/3) ... [2021-01-06 23:36:56,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23a80456 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 11:36:56, skipping insertion in model container [2021-01-06 23:36:56,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:36:56" (2/3) ... [2021-01-06 23:36:56,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23a80456 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 11:36:56, skipping insertion in model container [2021-01-06 23:36:56,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:36:56" (3/3) ... [2021-01-06 23:36:56,981 INFO L111 eAbstractionObserver]: Analyzing ICFG safe024_tso.opt.i [2021-01-06 23:36:56,991 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-06 23:36:56,992 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 23:36:56,998 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-06 23:36:57,000 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-06 23:36:57,039 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:36:57,040 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:36:57,040 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:36:57,040 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:36:57,041 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:36:57,041 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:36:57,041 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:36:57,041 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:36:57,042 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:36:57,042 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:36:57,042 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:36:57,042 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:36:57,043 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:36:57,043 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:36:57,043 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:36:57,043 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:36:57,044 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:36:57,044 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:36:57,044 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:36:57,044 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:36:57,045 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:36:57,045 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:36:57,045 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:36:57,045 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:36:57,046 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:36:57,046 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:36:57,046 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:36:57,047 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:36:57,047 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:36:57,047 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:36:57,047 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:36:57,047 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:36:57,048 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:36:57,048 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:36:57,048 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:36:57,049 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:36:57,051 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:36:57,052 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:36:57,052 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:36:57,052 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:36:57,058 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:36:57,059 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:36:57,059 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:36:57,059 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:36:57,062 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:36:57,063 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:36:57,063 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:36:57,063 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:36:57,066 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-06 23:36:57,087 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-01-06 23:36:57,112 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 23:36:57,115 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 23:36:57,115 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 23:36:57,115 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 23:36:57,116 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 23:36:57,116 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 23:36:57,116 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 23:36:57,116 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 23:36:57,130 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-01-06 23:36:57,133 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 76 transitions, 167 flow [2021-01-06 23:36:57,137 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 76 transitions, 167 flow [2021-01-06 23:36:57,139 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 76 transitions, 167 flow [2021-01-06 23:36:57,192 INFO L129 PetriNetUnfolder]: 2/73 cut-off events. [2021-01-06 23:36:57,192 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-01-06 23:36:57,201 INFO L84 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 73 events. 2/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 55 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-01-06 23:36:57,210 INFO L116 LiptonReduction]: Number of co-enabled transitions 1296 [2021-01-06 23:37:00,322 WARN L197 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2021-01-06 23:37:00,426 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-01-06 23:37:00,670 WARN L197 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2021-01-06 23:37:00,779 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-01-06 23:37:00,839 INFO L131 LiptonReduction]: Checked pairs total: 2787 [2021-01-06 23:37:00,839 INFO L133 LiptonReduction]: Total number of compositions: 64 [2021-01-06 23:37:00,847 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2021-01-06 23:37:00,879 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2021-01-06 23:37:00,881 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2021-01-06 23:37:00,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-01-06 23:37:00,889 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:37:00,889 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:37:00,890 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:37:00,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:37:00,896 INFO L82 PathProgramCache]: Analyzing trace with hash -661732023, now seen corresponding path program 1 times [2021-01-06 23:37:00,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:37:00,908 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989581573] [2021-01-06 23:37:00,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:37:01,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:37:01,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:37:01,099 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989581573] [2021-01-06 23:37:01,103 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:37:01,104 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 23:37:01,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325058825] [2021-01-06 23:37:01,110 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-01-06 23:37:01,111 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:37:01,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-01-06 23:37:01,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-06 23:37:01,135 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2021-01-06 23:37:01,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:37:01,207 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2021-01-06 23:37:01,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-01-06 23:37:01,209 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2021-01-06 23:37:01,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:37:01,242 INFO L225 Difference]: With dead ends: 362 [2021-01-06 23:37:01,242 INFO L226 Difference]: Without dead ends: 298 [2021-01-06 23:37:01,244 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-06 23:37:01,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2021-01-06 23:37:01,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2021-01-06 23:37:01,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2021-01-06 23:37:01,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2021-01-06 23:37:01,326 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2021-01-06 23:37:01,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:37:01,327 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2021-01-06 23:37:01,327 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-01-06 23:37:01,328 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2021-01-06 23:37:01,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-01-06 23:37:01,329 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:37:01,329 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:37:01,330 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 23:37:01,330 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:37:01,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:37:01,331 INFO L82 PathProgramCache]: Analyzing trace with hash 961112404, now seen corresponding path program 1 times [2021-01-06 23:37:01,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:37:01,331 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057370907] [2021-01-06 23:37:01,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:37:01,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:37:01,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:37:01,534 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057370907] [2021-01-06 23:37:01,534 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:37:01,534 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 23:37:01,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483457021] [2021-01-06 23:37:01,536 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 23:37:01,536 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:37:01,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 23:37:01,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 23:37:01,540 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2021-01-06 23:37:01,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:37:01,592 INFO L93 Difference]: Finished difference Result 330 states and 912 transitions. [2021-01-06 23:37:01,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 23:37:01,593 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2021-01-06 23:37:01,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:37:01,599 INFO L225 Difference]: With dead ends: 330 [2021-01-06 23:37:01,599 INFO L226 Difference]: Without dead ends: 266 [2021-01-06 23:37:01,600 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:37:01,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2021-01-06 23:37:01,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2021-01-06 23:37:01,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2021-01-06 23:37:01,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 752 transitions. [2021-01-06 23:37:01,656 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 752 transitions. Word has length 9 [2021-01-06 23:37:01,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:37:01,656 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 752 transitions. [2021-01-06 23:37:01,656 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 23:37:01,656 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 752 transitions. [2021-01-06 23:37:01,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-01-06 23:37:01,659 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:37:01,659 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:37:01,660 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-06 23:37:01,660 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:37:01,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:37:01,662 INFO L82 PathProgramCache]: Analyzing trace with hash -270319833, now seen corresponding path program 1 times [2021-01-06 23:37:01,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:37:01,662 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428640853] [2021-01-06 23:37:01,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:37:01,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:37:01,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:37:01,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428640853] [2021-01-06 23:37:01,751 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:37:01,751 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 23:37:01,752 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93446683] [2021-01-06 23:37:01,752 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:37:01,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:37:01,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:37:01,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:37:01,754 INFO L87 Difference]: Start difference. First operand 266 states and 752 transitions. Second operand 5 states. [2021-01-06 23:37:01,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:37:01,802 INFO L93 Difference]: Finished difference Result 314 states and 856 transitions. [2021-01-06 23:37:01,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 23:37:01,810 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2021-01-06 23:37:01,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:37:01,811 INFO L225 Difference]: With dead ends: 314 [2021-01-06 23:37:01,812 INFO L226 Difference]: Without dead ends: 170 [2021-01-06 23:37:01,812 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-01-06 23:37:01,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2021-01-06 23:37:01,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2021-01-06 23:37:01,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2021-01-06 23:37:01,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 432 transitions. [2021-01-06 23:37:01,821 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 432 transitions. Word has length 10 [2021-01-06 23:37:01,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:37:01,821 INFO L481 AbstractCegarLoop]: Abstraction has 170 states and 432 transitions. [2021-01-06 23:37:01,821 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:37:01,821 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 432 transitions. [2021-01-06 23:37:01,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-01-06 23:37:01,823 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:37:01,823 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:37:01,823 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-06 23:37:01,823 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:37:01,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:37:01,824 INFO L82 PathProgramCache]: Analyzing trace with hash -2076633207, now seen corresponding path program 1 times [2021-01-06 23:37:01,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:37:01,825 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581701935] [2021-01-06 23:37:01,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:37:01,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:37:01,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:37:01,905 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581701935] [2021-01-06 23:37:01,906 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:37:01,908 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 23:37:01,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332714761] [2021-01-06 23:37:01,909 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 23:37:01,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:37:01,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 23:37:01,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 23:37:01,910 INFO L87 Difference]: Start difference. First operand 170 states and 432 transitions. Second operand 4 states. [2021-01-06 23:37:01,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:37:01,950 INFO L93 Difference]: Finished difference Result 183 states and 423 transitions. [2021-01-06 23:37:01,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 23:37:01,951 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2021-01-06 23:37:01,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:37:01,953 INFO L225 Difference]: With dead ends: 183 [2021-01-06 23:37:01,953 INFO L226 Difference]: Without dead ends: 143 [2021-01-06 23:37:01,953 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:37:01,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2021-01-06 23:37:01,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2021-01-06 23:37:01,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2021-01-06 23:37:01,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 330 transitions. [2021-01-06 23:37:01,959 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 330 transitions. Word has length 12 [2021-01-06 23:37:01,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:37:01,960 INFO L481 AbstractCegarLoop]: Abstraction has 143 states and 330 transitions. [2021-01-06 23:37:01,960 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 23:37:01,960 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 330 transitions. [2021-01-06 23:37:01,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-01-06 23:37:01,965 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:37:01,965 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:37:01,965 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-06 23:37:01,966 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:37:01,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:37:01,970 INFO L82 PathProgramCache]: Analyzing trace with hash 593138453, now seen corresponding path program 1 times [2021-01-06 23:37:01,971 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:37:01,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726307183] [2021-01-06 23:37:01,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:37:02,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:37:02,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:37:02,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726307183] [2021-01-06 23:37:02,096 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:37:02,096 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 23:37:02,096 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319039736] [2021-01-06 23:37:02,096 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:37:02,097 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:37:02,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:37:02,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:37:02,098 INFO L87 Difference]: Start difference. First operand 143 states and 330 transitions. Second operand 5 states. [2021-01-06 23:37:02,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:37:02,158 INFO L93 Difference]: Finished difference Result 129 states and 271 transitions. [2021-01-06 23:37:02,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 23:37:02,159 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2021-01-06 23:37:02,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:37:02,160 INFO L225 Difference]: With dead ends: 129 [2021-01-06 23:37:02,160 INFO L226 Difference]: Without dead ends: 104 [2021-01-06 23:37:02,160 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-01-06 23:37:02,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2021-01-06 23:37:02,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2021-01-06 23:37:02,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2021-01-06 23:37:02,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 215 transitions. [2021-01-06 23:37:02,165 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 215 transitions. Word has length 13 [2021-01-06 23:37:02,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:37:02,166 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 215 transitions. [2021-01-06 23:37:02,166 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:37:02,166 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 215 transitions. [2021-01-06 23:37:02,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-01-06 23:37:02,167 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:37:02,168 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:37:02,168 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-06 23:37:02,168 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:37:02,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:37:02,169 INFO L82 PathProgramCache]: Analyzing trace with hash -1258270807, now seen corresponding path program 1 times [2021-01-06 23:37:02,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:37:02,170 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025842316] [2021-01-06 23:37:02,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:37:02,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:37:02,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:37:02,280 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025842316] [2021-01-06 23:37:02,280 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:37:02,281 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 23:37:02,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248411464] [2021-01-06 23:37:02,281 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 23:37:02,281 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:37:02,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 23:37:02,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-01-06 23:37:02,283 INFO L87 Difference]: Start difference. First operand 104 states and 215 transitions. Second operand 6 states. [2021-01-06 23:37:02,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:37:02,337 INFO L93 Difference]: Finished difference Result 93 states and 191 transitions. [2021-01-06 23:37:02,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 23:37:02,337 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2021-01-06 23:37:02,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:37:02,338 INFO L225 Difference]: With dead ends: 93 [2021-01-06 23:37:02,339 INFO L226 Difference]: Without dead ends: 85 [2021-01-06 23:37:02,340 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-01-06 23:37:02,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2021-01-06 23:37:02,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2021-01-06 23:37:02,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2021-01-06 23:37:02,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 177 transitions. [2021-01-06 23:37:02,344 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 177 transitions. Word has length 15 [2021-01-06 23:37:02,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:37:02,344 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 177 transitions. [2021-01-06 23:37:02,344 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 23:37:02,344 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 177 transitions. [2021-01-06 23:37:02,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-01-06 23:37:02,345 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:37:02,345 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:37:02,345 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-06 23:37:02,345 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:37:02,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:37:02,347 INFO L82 PathProgramCache]: Analyzing trace with hash 1011219395, now seen corresponding path program 1 times [2021-01-06 23:37:02,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:37:02,347 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337634357] [2021-01-06 23:37:02,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:37:02,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:37:02,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:37:02,431 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337634357] [2021-01-06 23:37:02,432 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:37:02,432 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 23:37:02,433 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410356641] [2021-01-06 23:37:02,433 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:37:02,433 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:37:02,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:37:02,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:37:02,435 INFO L87 Difference]: Start difference. First operand 85 states and 177 transitions. Second operand 5 states. [2021-01-06 23:37:02,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:37:02,476 INFO L93 Difference]: Finished difference Result 99 states and 199 transitions. [2021-01-06 23:37:02,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 23:37:02,476 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2021-01-06 23:37:02,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:37:02,477 INFO L225 Difference]: With dead ends: 99 [2021-01-06 23:37:02,477 INFO L226 Difference]: Without dead ends: 57 [2021-01-06 23:37:02,479 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-01-06 23:37:02,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-01-06 23:37:02,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 53. [2021-01-06 23:37:02,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2021-01-06 23:37:02,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 97 transitions. [2021-01-06 23:37:02,485 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 97 transitions. Word has length 18 [2021-01-06 23:37:02,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:37:02,486 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 97 transitions. [2021-01-06 23:37:02,486 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:37:02,486 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 97 transitions. [2021-01-06 23:37:02,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-01-06 23:37:02,487 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:37:02,487 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:37:02,487 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-06 23:37:02,487 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:37:02,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:37:02,488 INFO L82 PathProgramCache]: Analyzing trace with hash -1578916891, now seen corresponding path program 2 times [2021-01-06 23:37:02,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:37:02,488 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041969298] [2021-01-06 23:37:02,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:37:02,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:37:02,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:37:02,583 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041969298] [2021-01-06 23:37:02,583 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:37:02,583 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 23:37:02,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385628696] [2021-01-06 23:37:02,584 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:37:02,584 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:37:02,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:37:02,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:37:02,585 INFO L87 Difference]: Start difference. First operand 53 states and 97 transitions. Second operand 5 states. [2021-01-06 23:37:02,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:37:02,610 INFO L93 Difference]: Finished difference Result 67 states and 119 transitions. [2021-01-06 23:37:02,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 23:37:02,610 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2021-01-06 23:37:02,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:37:02,611 INFO L225 Difference]: With dead ends: 67 [2021-01-06 23:37:02,611 INFO L226 Difference]: Without dead ends: 37 [2021-01-06 23:37:02,612 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-01-06 23:37:02,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-01-06 23:37:02,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-01-06 23:37:02,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2021-01-06 23:37:02,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 57 transitions. [2021-01-06 23:37:02,614 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 57 transitions. Word has length 18 [2021-01-06 23:37:02,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:37:02,615 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 57 transitions. [2021-01-06 23:37:02,615 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:37:02,615 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2021-01-06 23:37:02,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-01-06 23:37:02,615 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:37:02,616 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:37:02,616 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-06 23:37:02,616 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:37:02,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:37:02,617 INFO L82 PathProgramCache]: Analyzing trace with hash 577230555, now seen corresponding path program 3 times [2021-01-06 23:37:02,617 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:37:02,617 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653577118] [2021-01-06 23:37:02,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:37:02,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:37:02,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:37:02,696 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653577118] [2021-01-06 23:37:02,697 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:37:02,697 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 23:37:02,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553433096] [2021-01-06 23:37:02,698 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:37:02,698 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:37:02,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:37:02,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:37:02,699 INFO L87 Difference]: Start difference. First operand 37 states and 57 transitions. Second operand 5 states. [2021-01-06 23:37:02,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:37:02,719 INFO L93 Difference]: Finished difference Result 36 states and 56 transitions. [2021-01-06 23:37:02,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 23:37:02,719 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2021-01-06 23:37:02,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:37:02,720 INFO L225 Difference]: With dead ends: 36 [2021-01-06 23:37:02,720 INFO L226 Difference]: Without dead ends: 0 [2021-01-06 23:37:02,720 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-01-06 23:37:02,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-01-06 23:37:02,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-01-06 23:37:02,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-01-06 23:37:02,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-01-06 23:37:02,722 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2021-01-06 23:37:02,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:37:02,722 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-01-06 23:37:02,722 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:37:02,722 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-01-06 23:37:02,722 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-06 23:37:02,723 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-06 23:37:02,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.01 11:37:02 BasicIcfg [2021-01-06 23:37:02,728 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-06 23:37:02,729 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-01-06 23:37:02,729 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-01-06 23:37:02,729 INFO L275 PluginConnector]: Witness Printer initialized [2021-01-06 23:37:02,730 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:36:56" (3/4) ... [2021-01-06 23:37:02,735 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-01-06 23:37:02,744 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2021-01-06 23:37:02,744 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2021-01-06 23:37:02,745 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2021-01-06 23:37:02,753 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-01-06 23:37:02,753 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-01-06 23:37:02,753 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-01-06 23:37:02,753 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-01-06 23:37:02,800 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/pthread-wmm/safe024_tso.opt.i-witness.graphml [2021-01-06 23:37:02,800 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-01-06 23:37:02,802 INFO L168 Benchmark]: Toolchain (without parser) took 7324.08 ms. Allocated memory was 151.0 MB in the beginning and 222.3 MB in the end (delta: 71.3 MB). Free memory was 125.0 MB in the beginning and 173.8 MB in the end (delta: -48.8 MB). Peak memory consumption was 23.4 MB. Max. memory is 8.0 GB. [2021-01-06 23:37:02,802 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 151.0 MB. Free memory was 124.6 MB in the beginning and 124.5 MB in the end (delta: 77.6 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 23:37:02,803 INFO L168 Benchmark]: CACSL2BoogieTranslator took 748.82 ms. Allocated memory is still 151.0 MB. Free memory was 124.9 MB in the beginning and 125.9 MB in the end (delta: -988.1 kB). Peak memory consumption was 28.9 MB. Max. memory is 8.0 GB. [2021-01-06 23:37:02,804 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.80 ms. Allocated memory is still 151.0 MB. Free memory was 125.9 MB in the beginning and 123.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-01-06 23:37:02,807 INFO L168 Benchmark]: Boogie Preprocessor took 30.59 ms. Allocated memory is still 151.0 MB. Free memory was 123.8 MB in the beginning and 122.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-01-06 23:37:02,807 INFO L168 Benchmark]: RCFGBuilder took 660.83 ms. Allocated memory is still 151.0 MB. Free memory was 122.7 MB in the beginning and 100.7 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2021-01-06 23:37:02,810 INFO L168 Benchmark]: TraceAbstraction took 5755.17 ms. Allocated memory was 151.0 MB in the beginning and 222.3 MB in the end (delta: 71.3 MB). Free memory was 100.2 MB in the beginning and 176.5 MB in the end (delta: -76.3 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 23:37:02,811 INFO L168 Benchmark]: Witness Printer took 71.06 ms. Allocated memory is still 222.3 MB. Free memory was 176.5 MB in the beginning and 173.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-01-06 23:37:02,817 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 151.0 MB. Free memory was 124.6 MB in the beginning and 124.5 MB in the end (delta: 77.6 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 748.82 ms. Allocated memory is still 151.0 MB. Free memory was 124.9 MB in the beginning and 125.9 MB in the end (delta: -988.1 kB). Peak memory consumption was 28.9 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 49.80 ms. Allocated memory is still 151.0 MB. Free memory was 125.9 MB in the beginning and 123.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 30.59 ms. Allocated memory is still 151.0 MB. Free memory was 123.8 MB in the beginning and 122.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 660.83 ms. Allocated memory is still 151.0 MB. Free memory was 122.7 MB in the beginning and 100.7 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5755.17 ms. Allocated memory was 151.0 MB in the beginning and 222.3 MB in the end (delta: 71.3 MB). Free memory was 100.2 MB in the beginning and 176.5 MB in the end (delta: -76.3 MB). There was no memory consumed. Max. memory is 8.0 GB. * Witness Printer took 71.06 ms. Allocated memory is still 222.3 MB. Free memory was 176.5 MB in the beginning and 173.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 867 VarBasedMoverChecksPositive, 33 VarBasedMoverChecksNegative, 6 SemBasedMoverChecksPositive, 27 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 74 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.7s, 84 PlacesBefore, 32 PlacesAfterwards, 76 TransitionsBefore, 23 TransitionsAfterwards, 1296 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 64 TotalNumberOfCompositions, 2787 MoverChecksTotal - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 75 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.6s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.7s, HoareTripleCheckerStatistics: 184 SDtfs, 240 SDslu, 291 SDs, 0 SdLazy, 85 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 121 NumberOfCodeBlocks, 121 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 112 ConstructedInterpolants, 0 QuantifiedInterpolants, 4834 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...