/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/safe014_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 13:40:59,923 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 13:40:59,926 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 13:40:59,964 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 13:40:59,965 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 13:40:59,967 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 13:40:59,969 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 13:40:59,971 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 13:40:59,974 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 13:40:59,975 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 13:40:59,977 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 13:40:59,978 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 13:40:59,979 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 13:40:59,980 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 13:40:59,982 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 13:40:59,983 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 13:40:59,985 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 13:40:59,986 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 13:40:59,988 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 13:40:59,991 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 13:40:59,993 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 13:40:59,995 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 13:40:59,997 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 13:40:59,998 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 13:41:00,017 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-23 13:41:00,022 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 13:41:00,023 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 13:41:00,024 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 13:41:00,025 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 13:41:00,027 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 13:41:00,027 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 13:41:00,028 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 13:41:00,028 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 13:41:00,029 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 13:41:00,030 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 13:41:00,031 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 13:41:00,032 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-23 13:41:00,061 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 13:41:00,061 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 13:41:00,063 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 13:41:00,063 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 13:41:00,063 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 13:41:00,064 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 13:41:00,064 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 13:41:00,064 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 13:41:00,065 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 13:41:00,065 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 13:41:00,065 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 13:41:00,065 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 13:41:00,066 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 13:41:00,066 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 13:41:00,066 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 13:41:00,067 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 13:41:00,067 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 13:41:00,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 13:41:00,067 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 13:41:00,068 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 13:41:00,068 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 13:41:00,068 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 13:41:00,068 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 13:41:00,069 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 13:41:00,069 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 13:41:00,069 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 13:41:00,490 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 13:41:00,547 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 13:41:00,550 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 13:41:00,552 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 13:41:00,553 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 13:41:00,558 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe014_pso.opt.i [2020-12-23 13:41:00,660 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/292f3e9b0/acb7cbecf7094033b7a0284d7215a413/FLAG671bad93c [2020-12-23 13:41:01,530 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 13:41:01,530 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe014_pso.opt.i [2020-12-23 13:41:01,549 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/292f3e9b0/acb7cbecf7094033b7a0284d7215a413/FLAG671bad93c [2020-12-23 13:41:01,743 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/292f3e9b0/acb7cbecf7094033b7a0284d7215a413 [2020-12-23 13:41:01,751 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 13:41:01,753 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 13:41:01,755 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 13:41:01,756 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 13:41:01,760 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 13:41:01,761 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:41:01" (1/1) ... [2020-12-23 13:41:01,762 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ffa21f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:41:01, skipping insertion in model container [2020-12-23 13:41:01,763 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:41:01" (1/1) ... [2020-12-23 13:41:01,771 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 13:41:01,815 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-23 13:41:01,988 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/safe014_pso.opt.i[949,962] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p0_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p0_EBX~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[~x~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[~y~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$tmp_guard1~0,GLOBAL] [2020-12-23 13:41:02,179 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 13:41:02,191 INFO L203 MainTranslator]: Completed pre-run [2020-12-23 13:41:02,208 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe014_pso.opt.i[949,962] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p0_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p0_EBX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p2_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard1~0,GLOBAL] [2020-12-23 13:41:02,244 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 13:41:02,389 INFO L208 MainTranslator]: Completed translation [2020-12-23 13:41:02,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:41:02 WrapperNode [2020-12-23 13:41:02,390 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 13:41:02,391 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 13:41:02,391 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 13:41:02,391 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 13:41:02,406 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:41:02" (1/1) ... [2020-12-23 13:41:02,451 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:41:02" (1/1) ... [2020-12-23 13:41:02,485 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 13:41:02,489 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 13:41:02,490 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 13:41:02,490 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 13:41:02,502 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:41:02" (1/1) ... [2020-12-23 13:41:02,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:41:02" (1/1) ... [2020-12-23 13:41:02,506 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:41:02" (1/1) ... [2020-12-23 13:41:02,507 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:41:02" (1/1) ... [2020-12-23 13:41:02,513 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:41:02" (1/1) ... [2020-12-23 13:41:02,516 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:41:02" (1/1) ... [2020-12-23 13:41:02,518 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:41:02" (1/1) ... [2020-12-23 13:41:02,522 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 13:41:02,523 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 13:41:02,523 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 13:41:02,523 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 13:41:02,524 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:41:02" (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 [2020-12-23 13:41:02,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-23 13:41:02,632 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-23 13:41:02,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 13:41:02,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-23 13:41:02,633 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-23 13:41:02,633 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-23 13:41:02,633 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-23 13:41:02,633 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-23 13:41:02,633 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-23 13:41:02,634 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-23 13:41:02,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 13:41:02,634 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-23 13:41:02,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 13:41:02,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 13:41:02,636 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-23 13:41:03,113 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 13:41:03,114 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-23 13:41:03,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:41:03 BoogieIcfgContainer [2020-12-23 13:41:03,117 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 13:41:03,119 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 13:41:03,119 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 13:41:03,123 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 13:41:03,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 01:41:01" (1/3) ... [2020-12-23 13:41:03,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9f6697e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:41:03, skipping insertion in model container [2020-12-23 13:41:03,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:41:02" (2/3) ... [2020-12-23 13:41:03,126 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9f6697e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:41:03, skipping insertion in model container [2020-12-23 13:41:03,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:41:03" (3/3) ... [2020-12-23 13:41:03,128 INFO L111 eAbstractionObserver]: Analyzing ICFG safe014_pso.opt.i [2020-12-23 13:41:03,138 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-23 13:41:03,138 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 13:41:03,144 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 13:41:03,146 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-23 13:41:03,190 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:03,190 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:03,190 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:03,191 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:03,191 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:03,191 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:03,191 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:03,192 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:03,192 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:03,193 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:03,193 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:03,193 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:03,194 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:03,194 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:03,194 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:03,194 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:03,195 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:03,195 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:03,195 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:03,195 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:03,196 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:03,196 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:03,196 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:03,197 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:03,197 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:03,198 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:03,198 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:03,198 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:03,198 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:03,198 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:03,199 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:03,199 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:03,199 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:03,200 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:03,200 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:03,200 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:03,203 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:03,203 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:03,204 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:03,204 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:03,210 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:03,211 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:03,211 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:03,211 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:03,214 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:03,214 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:03,215 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:03,215 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:03,217 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-23 13:41:03,245 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-23 13:41:03,276 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 13:41:03,276 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 13:41:03,277 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 13:41:03,277 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 13:41:03,277 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 13:41:03,278 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 13:41:03,278 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 13:41:03,278 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 13:41:03,296 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-23 13:41:03,299 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 75 transitions, 165 flow [2020-12-23 13:41:03,303 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 75 transitions, 165 flow [2020-12-23 13:41:03,306 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 75 transitions, 165 flow [2020-12-23 13:41:03,362 INFO L129 PetriNetUnfolder]: 2/72 cut-off events. [2020-12-23 13:41:03,365 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-12-23 13:41:03,372 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 72 events. 2/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2020-12-23 13:41:03,379 INFO L116 LiptonReduction]: Number of co-enabled transitions 1296 [2020-12-23 13:41:07,205 WARN L197 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2020-12-23 13:41:07,314 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-12-23 13:41:07,544 WARN L197 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2020-12-23 13:41:07,647 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-12-23 13:41:07,654 INFO L131 LiptonReduction]: Checked pairs total: 2653 [2020-12-23 13:41:07,654 INFO L133 LiptonReduction]: Total number of compositions: 59 [2020-12-23 13:41:07,662 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-12-23 13:41:07,693 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-12-23 13:41:07,695 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-12-23 13:41:07,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-23 13:41:07,703 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:41:07,704 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:41:07,704 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:41:07,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:41:07,711 INFO L82 PathProgramCache]: Analyzing trace with hash -991402129, now seen corresponding path program 1 times [2020-12-23 13:41:07,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:41:07,722 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3176309] [2020-12-23 13:41:07,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:41:07,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:41:07,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:41:07,922 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3176309] [2020-12-23 13:41:07,923 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:41:07,924 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 13:41:07,924 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554529195] [2020-12-23 13:41:07,930 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-23 13:41:07,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:41:07,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-23 13:41:07,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 13:41:07,951 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-12-23 13:41:07,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:41:07,987 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-12-23 13:41:07,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-23 13:41:07,989 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-12-23 13:41:07,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:41:08,008 INFO L225 Difference]: With dead ends: 362 [2020-12-23 13:41:08,008 INFO L226 Difference]: Without dead ends: 298 [2020-12-23 13:41:08,010 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 [2020-12-23 13:41:08,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-12-23 13:41:08,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-12-23 13:41:08,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-12-23 13:41:08,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-12-23 13:41:08,117 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-12-23 13:41:08,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:41:08,118 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-12-23 13:41:08,119 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-23 13:41:08,119 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-12-23 13:41:08,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-23 13:41:08,121 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:41:08,121 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:41:08,121 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 13:41:08,121 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:41:08,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:41:08,122 INFO L82 PathProgramCache]: Analyzing trace with hash -668714259, now seen corresponding path program 1 times [2020-12-23 13:41:08,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:41:08,123 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147416533] [2020-12-23 13:41:08,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:41:08,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:41:08,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:41:08,312 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147416533] [2020-12-23 13:41:08,312 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:41:08,313 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 13:41:08,313 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267915468] [2020-12-23 13:41:08,315 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 13:41:08,315 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:41:08,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 13:41:08,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 13:41:08,319 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-12-23 13:41:08,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:41:08,388 INFO L93 Difference]: Finished difference Result 330 states and 912 transitions. [2020-12-23 13:41:08,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 13:41:08,389 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-12-23 13:41:08,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:41:08,396 INFO L225 Difference]: With dead ends: 330 [2020-12-23 13:41:08,397 INFO L226 Difference]: Without dead ends: 266 [2020-12-23 13:41:08,398 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 [2020-12-23 13:41:08,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-12-23 13:41:08,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-12-23 13:41:08,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-12-23 13:41:08,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 752 transitions. [2020-12-23 13:41:08,450 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 752 transitions. Word has length 9 [2020-12-23 13:41:08,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:41:08,451 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 752 transitions. [2020-12-23 13:41:08,451 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 13:41:08,454 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 752 transitions. [2020-12-23 13:41:08,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-23 13:41:08,457 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:41:08,457 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:41:08,457 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 13:41:08,457 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:41:08,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:41:08,458 INFO L82 PathProgramCache]: Analyzing trace with hash 744680885, now seen corresponding path program 1 times [2020-12-23 13:41:08,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:41:08,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313230349] [2020-12-23 13:41:08,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:41:08,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:41:08,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:41:08,600 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313230349] [2020-12-23 13:41:08,600 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:41:08,600 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 13:41:08,601 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168396922] [2020-12-23 13:41:08,601 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 13:41:08,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:41:08,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 13:41:08,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 13:41:08,602 INFO L87 Difference]: Start difference. First operand 266 states and 752 transitions. Second operand 5 states. [2020-12-23 13:41:08,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:41:08,679 INFO L93 Difference]: Finished difference Result 362 states and 1008 transitions. [2020-12-23 13:41:08,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 13:41:08,680 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-12-23 13:41:08,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:41:08,682 INFO L225 Difference]: With dead ends: 362 [2020-12-23 13:41:08,683 INFO L226 Difference]: Without dead ends: 218 [2020-12-23 13:41:08,683 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 [2020-12-23 13:41:08,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-12-23 13:41:08,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-12-23 13:41:08,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-12-23 13:41:08,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 592 transitions. [2020-12-23 13:41:08,694 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 592 transitions. Word has length 10 [2020-12-23 13:41:08,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:41:08,695 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 592 transitions. [2020-12-23 13:41:08,695 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 13:41:08,695 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 592 transitions. [2020-12-23 13:41:08,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-23 13:41:08,697 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:41:08,697 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:41:08,697 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 13:41:08,697 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:41:08,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:41:08,698 INFO L82 PathProgramCache]: Analyzing trace with hash -1281410722, now seen corresponding path program 1 times [2020-12-23 13:41:08,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:41:08,699 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530109036] [2020-12-23 13:41:08,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:41:08,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:41:08,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:41:08,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530109036] [2020-12-23 13:41:08,816 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:41:08,816 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 13:41:08,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923415866] [2020-12-23 13:41:08,816 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 13:41:08,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:41:08,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 13:41:08,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 13:41:08,818 INFO L87 Difference]: Start difference. First operand 218 states and 592 transitions. Second operand 5 states. [2020-12-23 13:41:08,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:41:08,895 INFO L93 Difference]: Finished difference Result 278 states and 737 transitions. [2020-12-23 13:41:08,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-23 13:41:08,895 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-12-23 13:41:08,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:41:08,897 INFO L225 Difference]: With dead ends: 278 [2020-12-23 13:41:08,897 INFO L226 Difference]: Without dead ends: 170 [2020-12-23 13:41:08,898 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-23 13:41:08,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2020-12-23 13:41:08,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2020-12-23 13:41:08,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-12-23 13:41:08,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 432 transitions. [2020-12-23 13:41:08,905 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 432 transitions. Word has length 11 [2020-12-23 13:41:08,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:41:08,906 INFO L481 AbstractCegarLoop]: Abstraction has 170 states and 432 transitions. [2020-12-23 13:41:08,906 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 13:41:08,906 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 432 transitions. [2020-12-23 13:41:08,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-23 13:41:08,907 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:41:08,907 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:41:08,907 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 13:41:08,908 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:41:08,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:41:08,908 INFO L82 PathProgramCache]: Analyzing trace with hash -663598862, now seen corresponding path program 1 times [2020-12-23 13:41:08,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:41:08,909 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373435858] [2020-12-23 13:41:08,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:41:08,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:41:08,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:41:08,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373435858] [2020-12-23 13:41:08,986 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:41:08,986 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 13:41:08,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505316526] [2020-12-23 13:41:08,987 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 13:41:08,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:41:08,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 13:41:08,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 13:41:08,988 INFO L87 Difference]: Start difference. First operand 170 states and 432 transitions. Second operand 4 states. [2020-12-23 13:41:09,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:41:09,017 INFO L93 Difference]: Finished difference Result 182 states and 446 transitions. [2020-12-23 13:41:09,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 13:41:09,018 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-12-23 13:41:09,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:41:09,020 INFO L225 Difference]: With dead ends: 182 [2020-12-23 13:41:09,020 INFO L226 Difference]: Without dead ends: 158 [2020-12-23 13:41:09,020 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 [2020-12-23 13:41:09,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-12-23 13:41:09,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2020-12-23 13:41:09,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-12-23 13:41:09,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 394 transitions. [2020-12-23 13:41:09,026 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 394 transitions. Word has length 12 [2020-12-23 13:41:09,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:41:09,027 INFO L481 AbstractCegarLoop]: Abstraction has 158 states and 394 transitions. [2020-12-23 13:41:09,027 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 13:41:09,027 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 394 transitions. [2020-12-23 13:41:09,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-23 13:41:09,028 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:41:09,028 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:41:09,029 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-23 13:41:09,029 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:41:09,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:41:09,030 INFO L82 PathProgramCache]: Analyzing trace with hash 1497460825, now seen corresponding path program 1 times [2020-12-23 13:41:09,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:41:09,030 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760186453] [2020-12-23 13:41:09,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:41:09,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:41:09,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:41:09,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760186453] [2020-12-23 13:41:09,168 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:41:09,168 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 13:41:09,168 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365503311] [2020-12-23 13:41:09,169 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 13:41:09,169 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:41:09,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 13:41:09,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 13:41:09,170 INFO L87 Difference]: Start difference. First operand 158 states and 394 transitions. Second operand 5 states. [2020-12-23 13:41:09,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:41:09,227 INFO L93 Difference]: Finished difference Result 188 states and 459 transitions. [2020-12-23 13:41:09,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 13:41:09,228 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-12-23 13:41:09,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:41:09,229 INFO L225 Difference]: With dead ends: 188 [2020-12-23 13:41:09,229 INFO L226 Difference]: Without dead ends: 80 [2020-12-23 13:41:09,230 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 [2020-12-23 13:41:09,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-12-23 13:41:09,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-12-23 13:41:09,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-12-23 13:41:09,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 176 transitions. [2020-12-23 13:41:09,234 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 176 transitions. Word has length 13 [2020-12-23 13:41:09,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:41:09,235 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 176 transitions. [2020-12-23 13:41:09,235 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 13:41:09,235 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 176 transitions. [2020-12-23 13:41:09,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-23 13:41:09,236 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:41:09,236 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:41:09,236 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-23 13:41:09,236 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:41:09,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:41:09,237 INFO L82 PathProgramCache]: Analyzing trace with hash -2064800307, now seen corresponding path program 1 times [2020-12-23 13:41:09,237 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:41:09,238 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735102125] [2020-12-23 13:41:09,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:41:09,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:41:09,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:41:09,298 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735102125] [2020-12-23 13:41:09,298 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:41:09,299 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 13:41:09,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190859114] [2020-12-23 13:41:09,299 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 13:41:09,300 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:41:09,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 13:41:09,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 13:41:09,301 INFO L87 Difference]: Start difference. First operand 80 states and 176 transitions. Second operand 4 states. [2020-12-23 13:41:09,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:41:09,339 INFO L93 Difference]: Finished difference Result 91 states and 181 transitions. [2020-12-23 13:41:09,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 13:41:09,340 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-12-23 13:41:09,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:41:09,341 INFO L225 Difference]: With dead ends: 91 [2020-12-23 13:41:09,341 INFO L226 Difference]: Without dead ends: 69 [2020-12-23 13:41:09,342 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 [2020-12-23 13:41:09,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-12-23 13:41:09,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-12-23 13:41:09,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-12-23 13:41:09,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 138 transitions. [2020-12-23 13:41:09,346 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 138 transitions. Word has length 14 [2020-12-23 13:41:09,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:41:09,346 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 138 transitions. [2020-12-23 13:41:09,346 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 13:41:09,362 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 138 transitions. [2020-12-23 13:41:09,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-23 13:41:09,363 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:41:09,364 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:41:09,364 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-23 13:41:09,364 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:41:09,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:41:09,365 INFO L82 PathProgramCache]: Analyzing trace with hash 182443752, now seen corresponding path program 1 times [2020-12-23 13:41:09,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:41:09,366 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969150602] [2020-12-23 13:41:09,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:41:09,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:41:09,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:41:09,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969150602] [2020-12-23 13:41:09,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:41:09,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 13:41:09,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961262944] [2020-12-23 13:41:09,438 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 13:41:09,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:41:09,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 13:41:09,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 13:41:09,439 INFO L87 Difference]: Start difference. First operand 69 states and 138 transitions. Second operand 5 states. [2020-12-23 13:41:09,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:41:09,489 INFO L93 Difference]: Finished difference Result 65 states and 113 transitions. [2020-12-23 13:41:09,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 13:41:09,496 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-12-23 13:41:09,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:41:09,496 INFO L225 Difference]: With dead ends: 65 [2020-12-23 13:41:09,497 INFO L226 Difference]: Without dead ends: 50 [2020-12-23 13:41:09,497 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-23 13:41:09,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-12-23 13:41:09,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-12-23 13:41:09,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-12-23 13:41:09,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 83 transitions. [2020-12-23 13:41:09,499 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 83 transitions. Word has length 15 [2020-12-23 13:41:09,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:41:09,500 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 83 transitions. [2020-12-23 13:41:09,500 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 13:41:09,500 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 83 transitions. [2020-12-23 13:41:09,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-23 13:41:09,500 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:41:09,501 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:41:09,501 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-23 13:41:09,501 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:41:09,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:41:09,502 INFO L82 PathProgramCache]: Analyzing trace with hash 1015325315, now seen corresponding path program 1 times [2020-12-23 13:41:09,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:41:09,502 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247818920] [2020-12-23 13:41:09,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:41:09,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:41:09,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:41:09,573 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247818920] [2020-12-23 13:41:09,573 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:41:09,573 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 13:41:09,573 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136206745] [2020-12-23 13:41:09,574 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 13:41:09,574 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:41:09,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 13:41:09,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-23 13:41:09,575 INFO L87 Difference]: Start difference. First operand 50 states and 83 transitions. Second operand 6 states. [2020-12-23 13:41:09,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:41:09,641 INFO L93 Difference]: Finished difference Result 43 states and 67 transitions. [2020-12-23 13:41:09,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-23 13:41:09,642 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-12-23 13:41:09,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:41:09,643 INFO L225 Difference]: With dead ends: 43 [2020-12-23 13:41:09,643 INFO L226 Difference]: Without dead ends: 37 [2020-12-23 13:41:09,644 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-12-23 13:41:09,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-12-23 13:41:09,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-12-23 13:41:09,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-12-23 13:41:09,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 57 transitions. [2020-12-23 13:41:09,647 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 57 transitions. Word has length 16 [2020-12-23 13:41:09,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:41:09,648 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 57 transitions. [2020-12-23 13:41:09,648 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 13:41:09,648 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2020-12-23 13:41:09,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-23 13:41:09,649 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:41:09,649 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:41:09,649 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-23 13:41:09,649 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:41:09,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:41:09,650 INFO L82 PathProgramCache]: Analyzing trace with hash 719368643, now seen corresponding path program 1 times [2020-12-23 13:41:09,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:41:09,651 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174977482] [2020-12-23 13:41:09,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:41:09,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:41:09,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:41:09,766 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174977482] [2020-12-23 13:41:09,766 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:41:09,766 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 13:41:09,766 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369286452] [2020-12-23 13:41:09,767 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 13:41:09,767 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:41:09,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 13:41:09,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 13:41:09,768 INFO L87 Difference]: Start difference. First operand 37 states and 57 transitions. Second operand 5 states. [2020-12-23 13:41:09,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:41:09,842 INFO L93 Difference]: Finished difference Result 36 states and 56 transitions. [2020-12-23 13:41:09,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 13:41:09,842 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-12-23 13:41:09,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:41:09,843 INFO L225 Difference]: With dead ends: 36 [2020-12-23 13:41:09,843 INFO L226 Difference]: Without dead ends: 0 [2020-12-23 13:41:09,843 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 [2020-12-23 13:41:09,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-23 13:41:09,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-23 13:41:09,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-23 13:41:09,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-23 13:41:09,844 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-12-23 13:41:09,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:41:09,844 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-23 13:41:09,845 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 13:41:09,845 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-23 13:41:09,845 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-23 13:41:09,845 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-23 13:41:09,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 01:41:09 BasicIcfg [2020-12-23 13:41:09,849 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-23 13:41:09,850 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-23 13:41:09,850 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-23 13:41:09,850 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-23 13:41:09,851 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:41:03" (3/4) ... [2020-12-23 13:41:09,855 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-23 13:41:09,863 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-12-23 13:41:09,863 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-12-23 13:41:09,863 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-12-23 13:41:09,869 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-12-23 13:41:09,869 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-23 13:41:09,869 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-23 13:41:09,869 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-23 13:41:09,916 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/pthread-wmm/safe014_pso.opt.i-witness.graphml [2020-12-23 13:41:09,916 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-23 13:41:09,918 INFO L168 Benchmark]: Toolchain (without parser) took 8164.73 ms. Allocated memory was 151.0 MB in the beginning and 229.6 MB in the end (delta: 78.6 MB). Free memory was 124.8 MB in the beginning and 150.0 MB in the end (delta: -25.2 MB). Peak memory consumption was 55.0 MB. Max. memory is 8.0 GB. [2020-12-23 13:41:09,918 INFO L168 Benchmark]: CDTParser took 3.90 ms. Allocated memory is still 151.0 MB. Free memory is still 124.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 13:41:09,919 INFO L168 Benchmark]: CACSL2BoogieTranslator took 634.85 ms. Allocated memory is still 151.0 MB. Free memory was 124.7 MB in the beginning and 126.2 MB in the end (delta: -1.5 MB). Peak memory consumption was 27.0 MB. Max. memory is 8.0 GB. [2020-12-23 13:41:09,920 INFO L168 Benchmark]: Boogie Procedure Inliner took 94.56 ms. Allocated memory is still 151.0 MB. Free memory was 126.2 MB in the beginning and 124.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 13:41:09,920 INFO L168 Benchmark]: Boogie Preprocessor took 32.87 ms. Allocated memory is still 151.0 MB. Free memory was 124.1 MB in the beginning and 122.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-23 13:41:09,921 INFO L168 Benchmark]: RCFGBuilder took 594.06 ms. Allocated memory is still 151.0 MB. Free memory was 122.5 MB in the beginning and 100.5 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-12-23 13:41:09,922 INFO L168 Benchmark]: TraceAbstraction took 6730.12 ms. Allocated memory was 151.0 MB in the beginning and 229.6 MB in the end (delta: 78.6 MB). Free memory was 100.0 MB in the beginning and 152.6 MB in the end (delta: -52.7 MB). Peak memory consumption was 27.0 MB. Max. memory is 8.0 GB. [2020-12-23 13:41:09,922 INFO L168 Benchmark]: Witness Printer took 66.51 ms. Allocated memory is still 229.6 MB. Free memory was 152.6 MB in the beginning and 150.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-23 13:41:09,926 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.90 ms. Allocated memory is still 151.0 MB. Free memory is still 124.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 634.85 ms. Allocated memory is still 151.0 MB. Free memory was 124.7 MB in the beginning and 126.2 MB in the end (delta: -1.5 MB). Peak memory consumption was 27.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 94.56 ms. Allocated memory is still 151.0 MB. Free memory was 126.2 MB in the beginning and 124.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 32.87 ms. Allocated memory is still 151.0 MB. Free memory was 124.1 MB in the beginning and 122.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 594.06 ms. Allocated memory is still 151.0 MB. Free memory was 122.5 MB in the beginning and 100.5 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6730.12 ms. Allocated memory was 151.0 MB in the beginning and 229.6 MB in the end (delta: 78.6 MB). Free memory was 100.0 MB in the beginning and 152.6 MB in the end (delta: -52.7 MB). Peak memory consumption was 27.0 MB. Max. memory is 8.0 GB. * Witness Printer took 66.51 ms. Allocated memory is still 229.6 MB. Free memory was 152.6 MB in the beginning and 150.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 734 VarBasedMoverChecksPositive, 36 VarBasedMoverChecksNegative, 6 SemBasedMoverChecksPositive, 30 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 58 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.3s, 83 PlacesBefore, 32 PlacesAfterwards, 75 TransitionsBefore, 23 TransitionsAfterwards, 1296 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 59 TotalNumberOfCompositions, 2653 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, 74 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.5s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.4s, HoareTripleCheckerStatistics: 215 SDtfs, 211 SDslu, 316 SDs, 0 SdLazy, 160 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s 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, 10 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 126 NumberOfCodeBlocks, 126 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 116 ConstructedInterpolants, 0 QuantifiedInterpolants, 5825 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...