/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/safe007_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 13:39:15,306 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 13:39:15,310 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 13:39:15,363 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 13:39:15,364 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 13:39:15,368 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 13:39:15,372 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 13:39:15,377 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 13:39:15,381 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 13:39:15,387 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 13:39:15,391 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 13:39:15,393 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 13:39:15,393 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 13:39:15,396 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 13:39:15,398 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 13:39:15,400 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 13:39:15,402 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 13:39:15,405 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 13:39:15,412 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 13:39:15,420 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 13:39:15,422 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 13:39:15,424 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 13:39:15,426 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 13:39:15,429 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 13:39:15,438 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 13:39:15,438 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 13:39:15,438 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 13:39:15,441 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 13:39:15,442 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 13:39:15,443 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 13:39:15,443 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 13:39:15,444 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 13:39:15,446 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 13:39:15,447 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 13:39:15,448 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 13:39:15,448 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 13:39:15,449 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 13:39:15,456 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 13:39:15,457 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 13:39:15,458 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 13:39:15,459 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 13:39:15,459 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 13:39:15,505 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 13:39:15,506 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 13:39:15,510 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 13:39:15,511 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 13:39:15,511 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 13:39:15,511 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 13:39:15,511 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 13:39:15,512 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 13:39:15,512 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 13:39:15,512 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 13:39:15,513 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 13:39:15,514 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 13:39:15,514 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 13:39:15,514 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 13:39:15,515 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 13:39:15,515 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 13:39:15,515 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 13:39:15,515 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 13:39:15,515 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 13:39:15,516 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 13:39:15,516 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 13:39:15,516 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 13:39:15,516 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 13:39:15,517 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 13:39:15,517 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 13:39:15,517 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 13:39:15,943 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 13:39:15,976 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 13:39:15,980 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 13:39:15,981 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 13:39:15,982 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 13:39:15,983 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe007_tso.opt.i [2020-12-23 13:39:16,083 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/4d80caa7d/5ea7fc57d1284cef8b39a47891c9892b/FLAG6df6d7160 [2020-12-23 13:39:16,825 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 13:39:16,826 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe007_tso.opt.i [2020-12-23 13:39:16,841 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/4d80caa7d/5ea7fc57d1284cef8b39a47891c9892b/FLAG6df6d7160 [2020-12-23 13:39:17,021 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/4d80caa7d/5ea7fc57d1284cef8b39a47891c9892b [2020-12-23 13:39:17,024 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 13:39:17,027 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 13:39:17,029 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 13:39:17,029 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 13:39:17,033 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 13:39:17,034 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:39:17" (1/1) ... [2020-12-23 13:39:17,036 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51f72017 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:39:17, skipping insertion in model container [2020-12-23 13:39:17,036 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:39:17" (1/1) ... [2020-12-23 13:39:17,045 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 13:39:17,092 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-23 13:39:17,290 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/safe007_tso.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[~x~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p1_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[~__unbuffered_p2_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~z~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$tmp_guard1~0,GLOBAL] [2020-12-23 13:39:17,502 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 13:39:17,514 INFO L203 MainTranslator]: Completed pre-run [2020-12-23 13:39:17,532 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe007_tso.opt.i[949,962] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p0_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p1_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p2_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~z~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard1~0,GLOBAL] [2020-12-23 13:39:17,571 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 13:39:17,673 INFO L208 MainTranslator]: Completed translation [2020-12-23 13:39:17,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:39:17 WrapperNode [2020-12-23 13:39:17,673 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 13:39:17,675 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 13:39:17,675 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 13:39:17,675 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 13:39:17,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:39:17" (1/1) ... [2020-12-23 13:39:17,705 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:39:17" (1/1) ... [2020-12-23 13:39:17,733 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 13:39:17,734 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 13:39:17,734 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 13:39:17,734 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 13:39:17,745 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:39:17" (1/1) ... [2020-12-23 13:39:17,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:39:17" (1/1) ... [2020-12-23 13:39:17,749 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:39:17" (1/1) ... [2020-12-23 13:39:17,749 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:39:17" (1/1) ... [2020-12-23 13:39:17,756 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:39:17" (1/1) ... [2020-12-23 13:39:17,758 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:39:17" (1/1) ... [2020-12-23 13:39:17,761 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:39:17" (1/1) ... [2020-12-23 13:39:17,764 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 13:39:17,765 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 13:39:17,766 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 13:39:17,766 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 13:39:17,767 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:39:17" (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 13:39:17,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-23 13:39:17,902 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-23 13:39:17,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 13:39:17,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-23 13:39:17,903 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-23 13:39:17,903 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-23 13:39:17,903 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-23 13:39:17,904 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-23 13:39:17,904 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-23 13:39:17,905 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-23 13:39:17,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 13:39:17,908 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-23 13:39:17,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 13:39:17,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 13:39:17,911 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 13:39:18,536 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 13:39:18,536 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-23 13:39:18,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:39:18 BoogieIcfgContainer [2020-12-23 13:39:18,539 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 13:39:18,541 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 13:39:18,541 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 13:39:18,545 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 13:39:18,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 01:39:17" (1/3) ... [2020-12-23 13:39:18,547 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3003107e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:39:18, skipping insertion in model container [2020-12-23 13:39:18,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:39:17" (2/3) ... [2020-12-23 13:39:18,548 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3003107e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:39:18, skipping insertion in model container [2020-12-23 13:39:18,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:39:18" (3/3) ... [2020-12-23 13:39:18,550 INFO L111 eAbstractionObserver]: Analyzing ICFG safe007_tso.opt.i [2020-12-23 13:39:18,561 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-23 13:39:18,561 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 13:39:18,567 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 13:39:18,568 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-23 13:39:18,608 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:18,608 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:18,608 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:18,609 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:18,609 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:18,609 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:18,610 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:18,610 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:18,610 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:18,610 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:18,611 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:18,611 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:18,611 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:18,612 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:18,612 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:18,612 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:18,612 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:18,613 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:18,613 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:18,613 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:18,614 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:18,614 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:18,614 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:18,614 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:18,615 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:18,615 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:18,615 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:18,615 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:18,616 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:18,616 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:18,616 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:18,616 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:18,617 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:18,617 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:18,617 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:18,618 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:18,620 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:18,621 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:18,621 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:18,621 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:18,626 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:18,627 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:18,627 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:18,627 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:18,629 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:18,630 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:18,630 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:18,630 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:18,632 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-23 13:39:18,652 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-23 13:39:18,677 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 13:39:18,677 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 13:39:18,678 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 13:39:18,678 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 13:39:18,678 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 13:39:18,678 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 13:39:18,678 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 13:39:18,678 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 13:39:18,692 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-23 13:39:18,695 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 76 transitions, 167 flow [2020-12-23 13:39:18,698 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 76 transitions, 167 flow [2020-12-23 13:39:18,700 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 76 transitions, 167 flow [2020-12-23 13:39:18,755 INFO L129 PetriNetUnfolder]: 2/73 cut-off events. [2020-12-23 13:39:18,755 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-12-23 13:39:18,762 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 54 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. [2020-12-23 13:39:18,766 INFO L116 LiptonReduction]: Number of co-enabled transitions 1296 [2020-12-23 13:39:21,887 WARN L197 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2020-12-23 13:39:21,993 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-12-23 13:39:22,257 WARN L197 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2020-12-23 13:39:22,364 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-12-23 13:39:22,680 INFO L131 LiptonReduction]: Checked pairs total: 2541 [2020-12-23 13:39:22,680 INFO L133 LiptonReduction]: Total number of compositions: 64 [2020-12-23 13:39:22,690 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2020-12-23 13:39:22,727 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-12-23 13:39:22,729 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-12-23 13:39:22,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-23 13:39:22,736 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:39:22,737 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:39:22,737 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:39:22,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:39:22,744 INFO L82 PathProgramCache]: Analyzing trace with hash 995547002, now seen corresponding path program 1 times [2020-12-23 13:39:22,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:39:22,755 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398019712] [2020-12-23 13:39:22,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:39:22,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:39:23,029 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 13:39:23,030 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398019712] [2020-12-23 13:39:23,032 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:39:23,032 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-23 13:39:23,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579557340] [2020-12-23 13:39:23,040 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 13:39:23,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:39:23,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 13:39:23,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 13:39:23,065 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-12-23 13:39:23,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:39:23,148 INFO L93 Difference]: Finished difference Result 360 states and 1001 transitions. [2020-12-23 13:39:23,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 13:39:23,150 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-12-23 13:39:23,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:39:23,176 INFO L225 Difference]: With dead ends: 360 [2020-12-23 13:39:23,176 INFO L226 Difference]: Without dead ends: 233 [2020-12-23 13:39:23,178 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 13:39:23,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2020-12-23 13:39:23,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2020-12-23 13:39:23,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-12-23 13:39:23,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 652 transitions. [2020-12-23 13:39:23,297 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 652 transitions. Word has length 8 [2020-12-23 13:39:23,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:39:23,298 INFO L481 AbstractCegarLoop]: Abstraction has 233 states and 652 transitions. [2020-12-23 13:39:23,298 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 13:39:23,299 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 652 transitions. [2020-12-23 13:39:23,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-23 13:39:23,300 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:39:23,300 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:39:23,301 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 13:39:23,301 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:39:23,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:39:23,302 INFO L82 PathProgramCache]: Analyzing trace with hash 755699245, now seen corresponding path program 1 times [2020-12-23 13:39:23,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:39:23,302 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248420030] [2020-12-23 13:39:23,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:39:23,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:39:23,459 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 13:39:23,460 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248420030] [2020-12-23 13:39:23,460 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:39:23,460 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 13:39:23,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582206877] [2020-12-23 13:39:23,462 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 13:39:23,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:39:23,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 13:39:23,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 13:39:23,467 INFO L87 Difference]: Start difference. First operand 233 states and 652 transitions. Second operand 4 states. [2020-12-23 13:39:23,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:39:23,521 INFO L93 Difference]: Finished difference Result 383 states and 1016 transitions. [2020-12-23 13:39:23,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 13:39:23,521 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-12-23 13:39:23,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:39:23,525 INFO L225 Difference]: With dead ends: 383 [2020-12-23 13:39:23,525 INFO L226 Difference]: Without dead ends: 329 [2020-12-23 13:39:23,526 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 13:39:23,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2020-12-23 13:39:23,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 284. [2020-12-23 13:39:23,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 284 states. [2020-12-23 13:39:23,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 779 transitions. [2020-12-23 13:39:23,571 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 779 transitions. Word has length 9 [2020-12-23 13:39:23,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:39:23,572 INFO L481 AbstractCegarLoop]: Abstraction has 284 states and 779 transitions. [2020-12-23 13:39:23,572 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 13:39:23,572 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 779 transitions. [2020-12-23 13:39:23,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-23 13:39:23,573 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:39:23,574 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:39:23,574 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 13:39:23,574 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:39:23,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:39:23,575 INFO L82 PathProgramCache]: Analyzing trace with hash 797195438, now seen corresponding path program 1 times [2020-12-23 13:39:23,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:39:23,575 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015621955] [2020-12-23 13:39:23,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:39:23,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:39:23,650 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 13:39:23,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015621955] [2020-12-23 13:39:23,651 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:39:23,651 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 13:39:23,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729129817] [2020-12-23 13:39:23,652 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 13:39:23,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:39:23,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 13:39:23,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 13:39:23,658 INFO L87 Difference]: Start difference. First operand 284 states and 779 transitions. Second operand 4 states. [2020-12-23 13:39:23,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:39:23,680 INFO L93 Difference]: Finished difference Result 269 states and 727 transitions. [2020-12-23 13:39:23,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 13:39:23,681 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-12-23 13:39:23,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:39:23,686 INFO L225 Difference]: With dead ends: 269 [2020-12-23 13:39:23,687 INFO L226 Difference]: Without dead ends: 269 [2020-12-23 13:39:23,688 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 13:39:23,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2020-12-23 13:39:23,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 269. [2020-12-23 13:39:23,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2020-12-23 13:39:23,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 727 transitions. [2020-12-23 13:39:23,723 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 727 transitions. Word has length 9 [2020-12-23 13:39:23,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:39:23,723 INFO L481 AbstractCegarLoop]: Abstraction has 269 states and 727 transitions. [2020-12-23 13:39:23,723 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 13:39:23,723 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 727 transitions. [2020-12-23 13:39:23,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-23 13:39:23,726 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:39:23,727 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:39:23,727 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 13:39:23,727 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:39:23,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:39:23,729 INFO L82 PathProgramCache]: Analyzing trace with hash 1951849563, now seen corresponding path program 1 times [2020-12-23 13:39:23,730 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:39:23,732 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955824803] [2020-12-23 13:39:23,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:39:23,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:39:23,859 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 13:39:23,859 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955824803] [2020-12-23 13:39:23,859 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:39:23,860 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 13:39:23,860 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286877468] [2020-12-23 13:39:23,860 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 13:39:23,860 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:39:23,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 13:39:23,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 13:39:23,861 INFO L87 Difference]: Start difference. First operand 269 states and 727 transitions. Second operand 4 states. [2020-12-23 13:39:23,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:39:23,882 INFO L93 Difference]: Finished difference Result 290 states and 749 transitions. [2020-12-23 13:39:23,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 13:39:23,883 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-12-23 13:39:23,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:39:23,884 INFO L225 Difference]: With dead ends: 290 [2020-12-23 13:39:23,885 INFO L226 Difference]: Without dead ends: 176 [2020-12-23 13:39:23,885 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 13:39:23,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2020-12-23 13:39:23,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 140. [2020-12-23 13:39:23,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-12-23 13:39:23,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 339 transitions. [2020-12-23 13:39:23,892 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 339 transitions. Word has length 10 [2020-12-23 13:39:23,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:39:23,892 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 339 transitions. [2020-12-23 13:39:23,892 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 13:39:23,892 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 339 transitions. [2020-12-23 13:39:23,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-23 13:39:23,894 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:39:23,894 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:39:23,894 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 13:39:23,894 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:39:23,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:39:23,895 INFO L82 PathProgramCache]: Analyzing trace with hash -1183830127, now seen corresponding path program 1 times [2020-12-23 13:39:23,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:39:23,895 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786264418] [2020-12-23 13:39:23,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:39:23,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:39:23,958 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 13:39:23,959 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786264418] [2020-12-23 13:39:23,959 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:39:23,959 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 13:39:23,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307157683] [2020-12-23 13:39:23,960 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 13:39:23,960 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:39:23,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 13:39:23,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 13:39:23,961 INFO L87 Difference]: Start difference. First operand 140 states and 339 transitions. Second operand 5 states. [2020-12-23 13:39:23,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:39:23,982 INFO L93 Difference]: Finished difference Result 158 states and 372 transitions. [2020-12-23 13:39:23,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 13:39:23,982 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-12-23 13:39:23,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:39:23,983 INFO L225 Difference]: With dead ends: 158 [2020-12-23 13:39:23,983 INFO L226 Difference]: Without dead ends: 68 [2020-12-23 13:39:23,984 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-23 13:39:23,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-12-23 13:39:23,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-12-23 13:39:23,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-12-23 13:39:23,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 144 transitions. [2020-12-23 13:39:23,987 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 144 transitions. Word has length 12 [2020-12-23 13:39:23,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:39:23,987 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 144 transitions. [2020-12-23 13:39:23,988 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 13:39:23,988 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 144 transitions. [2020-12-23 13:39:23,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-23 13:39:23,988 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:39:23,989 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:39:23,989 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-23 13:39:23,989 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:39:23,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:39:23,989 INFO L82 PathProgramCache]: Analyzing trace with hash -936336033, now seen corresponding path program 1 times [2020-12-23 13:39:23,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:39:23,990 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140855674] [2020-12-23 13:39:23,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:39:24,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:39:24,051 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 13:39:24,052 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140855674] [2020-12-23 13:39:24,052 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:39:24,052 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 13:39:24,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79481067] [2020-12-23 13:39:24,053 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 13:39:24,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:39:24,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 13:39:24,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 13:39:24,054 INFO L87 Difference]: Start difference. First operand 68 states and 144 transitions. Second operand 5 states. [2020-12-23 13:39:24,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:39:24,068 INFO L93 Difference]: Finished difference Result 56 states and 112 transitions. [2020-12-23 13:39:24,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 13:39:24,069 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-12-23 13:39:24,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:39:24,069 INFO L225 Difference]: With dead ends: 56 [2020-12-23 13:39:24,069 INFO L226 Difference]: Without dead ends: 0 [2020-12-23 13:39:24,070 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-23 13:39:24,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-23 13:39:24,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-23 13:39:24,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-23 13:39:24,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-23 13:39:24,070 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-12-23 13:39:24,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:39:24,071 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-23 13:39:24,071 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 13:39:24,071 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-23 13:39:24,071 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-23 13:39:24,071 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-23 13:39:24,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 01:39:24 BasicIcfg [2020-12-23 13:39:24,075 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-23 13:39:24,076 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-23 13:39:24,076 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-23 13:39:24,076 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-23 13:39:24,077 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:39:18" (3/4) ... [2020-12-23 13:39:24,081 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-23 13:39:24,088 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-12-23 13:39:24,088 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-12-23 13:39:24,088 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-12-23 13:39:24,093 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-12-23 13:39:24,094 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-23 13:39:24,094 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-23 13:39:24,094 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-23 13:39:24,140 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/pthread-wmm/safe007_tso.opt.i-witness.graphml [2020-12-23 13:39:24,141 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-23 13:39:24,142 INFO L168 Benchmark]: Toolchain (without parser) took 7115.33 ms. Allocated memory was 158.3 MB in the beginning and 198.2 MB in the end (delta: 39.8 MB). Free memory was 132.5 MB in the beginning and 125.2 MB in the end (delta: 7.3 MB). Peak memory consumption was 49.8 MB. Max. memory is 8.0 GB. [2020-12-23 13:39:24,143 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 158.3 MB. Free memory is still 136.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 13:39:24,143 INFO L168 Benchmark]: CACSL2BoogieTranslator took 645.38 ms. Allocated memory is still 158.3 MB. Free memory was 132.1 MB in the beginning and 101.2 MB in the end (delta: 30.9 MB). Peak memory consumption was 30.4 MB. Max. memory is 8.0 GB. [2020-12-23 13:39:24,144 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.27 ms. Allocated memory is still 158.3 MB. Free memory was 101.2 MB in the beginning and 99.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-23 13:39:24,144 INFO L168 Benchmark]: Boogie Preprocessor took 30.73 ms. Allocated memory is still 158.3 MB. Free memory was 99.1 MB in the beginning and 98.1 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 13:39:24,145 INFO L168 Benchmark]: RCFGBuilder took 774.09 ms. Allocated memory is still 158.3 MB. Free memory was 97.9 MB in the beginning and 75.4 MB in the end (delta: 22.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2020-12-23 13:39:24,146 INFO L168 Benchmark]: TraceAbstraction took 5534.23 ms. Allocated memory was 158.3 MB in the beginning and 198.2 MB in the end (delta: 39.8 MB). Free memory was 75.0 MB in the beginning and 127.8 MB in the end (delta: -52.8 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 13:39:24,146 INFO L168 Benchmark]: Witness Printer took 64.95 ms. Allocated memory is still 198.2 MB. Free memory was 127.8 MB in the beginning and 125.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-23 13:39:24,150 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 158.3 MB. Free memory is still 136.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 645.38 ms. Allocated memory is still 158.3 MB. Free memory was 132.1 MB in the beginning and 101.2 MB in the end (delta: 30.9 MB). Peak memory consumption was 30.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 58.27 ms. Allocated memory is still 158.3 MB. Free memory was 101.2 MB in the beginning and 99.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 30.73 ms. Allocated memory is still 158.3 MB. Free memory was 99.1 MB in the beginning and 98.1 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 774.09 ms. Allocated memory is still 158.3 MB. Free memory was 97.9 MB in the beginning and 75.4 MB in the end (delta: 22.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5534.23 ms. Allocated memory was 158.3 MB in the beginning and 198.2 MB in the end (delta: 39.8 MB). Free memory was 75.0 MB in the beginning and 127.8 MB in the end (delta: -52.8 MB). There was no memory consumed. Max. memory is 8.0 GB. * Witness Printer took 64.95 ms. Allocated memory is still 198.2 MB. Free memory was 127.8 MB in the beginning and 125.2 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 856 VarBasedMoverChecksPositive, 38 VarBasedMoverChecksNegative, 9 SemBasedMoverChecksPositive, 29 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 64 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.9s, 84 PlacesBefore, 31 PlacesAfterwards, 76 TransitionsBefore, 21 TransitionsAfterwards, 1296 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 64 TotalNumberOfCompositions, 2541 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: 5.3s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.0s, HoareTripleCheckerStatistics: 107 SDtfs, 128 SDslu, 96 SDs, 0 SdLazy, 33 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred 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, 6 MinimizatonAttempts, 81 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 55 ConstructedInterpolants, 0 QuantifiedInterpolants, 2929 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...