/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/safe037_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 13:46:50,344 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 13:46:50,348 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 13:46:50,403 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 13:46:50,403 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 13:46:50,408 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 13:46:50,411 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 13:46:50,417 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 13:46:50,421 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 13:46:50,427 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 13:46:50,432 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 13:46:50,434 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 13:46:50,435 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 13:46:50,438 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 13:46:50,441 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 13:46:50,443 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 13:46:50,444 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 13:46:50,449 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 13:46:50,457 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 13:46:50,465 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 13:46:50,467 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 13:46:50,468 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 13:46:50,470 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 13:46:50,471 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 13:46:50,474 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 13:46:50,474 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 13:46:50,475 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 13:46:50,476 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 13:46:50,477 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 13:46:50,478 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 13:46:50,478 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 13:46:50,479 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 13:46:50,503 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 13:46:50,505 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 13:46:50,506 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 13:46:50,506 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 13:46:50,507 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 13:46:50,508 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 13:46:50,508 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 13:46:50,509 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 13:46:50,510 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 13:46:50,511 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 13:46:50,560 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 13:46:50,560 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 13:46:50,564 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 13:46:50,565 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 13:46:50,565 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 13:46:50,565 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 13:46:50,566 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 13:46:50,566 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 13:46:50,566 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 13:46:50,566 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 13:46:50,567 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 13:46:50,568 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 13:46:50,568 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 13:46:50,568 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 13:46:50,569 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 13:46:50,569 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 13:46:50,569 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 13:46:50,569 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 13:46:50,569 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 13:46:50,570 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 13:46:50,570 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 13:46:50,570 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 13:46:50,570 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 13:46:50,570 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 13:46:50,571 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 13:46:50,571 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 13:46:50,982 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 13:46:51,022 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 13:46:51,025 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 13:46:51,027 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 13:46:51,028 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 13:46:51,029 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe037_tso.opt.i [2020-12-23 13:46:51,135 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/d1d481d2c/911886adf1c14c2aa10a6db0b420eaaa/FLAG7aa7c54a5 [2020-12-23 13:46:51,878 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 13:46:51,879 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe037_tso.opt.i [2020-12-23 13:46:51,904 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/d1d481d2c/911886adf1c14c2aa10a6db0b420eaaa/FLAG7aa7c54a5 [2020-12-23 13:46:52,150 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/d1d481d2c/911886adf1c14c2aa10a6db0b420eaaa [2020-12-23 13:46:52,154 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 13:46:52,157 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 13:46:52,161 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 13:46:52,162 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 13:46:52,166 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 13:46:52,167 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:46:52" (1/1) ... [2020-12-23 13:46:52,169 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@798afb21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:46:52, skipping insertion in model container [2020-12-23 13:46:52,169 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:46:52" (1/1) ... [2020-12-23 13:46:52,179 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 13:46:52,252 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-23 13:46:52,426 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/safe037_tso.opt.i[949,962] left hand side expression in assignment: lhs: VariableLHS[~z~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p0_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p1_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p2_EAX~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$tmp_guard1~0,GLOBAL] [2020-12-23 13:46:52,663 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 13:46:52,675 INFO L203 MainTranslator]: Completed pre-run [2020-12-23 13:46:52,691 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe037_tso.opt.i[949,962] left hand side expression in assignment: lhs: VariableLHS[~z~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p0_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p1_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p2_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard1~0,GLOBAL] [2020-12-23 13:46:52,757 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 13:46:52,919 INFO L208 MainTranslator]: Completed translation [2020-12-23 13:46:52,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:46:52 WrapperNode [2020-12-23 13:46:52,920 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 13:46:52,922 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 13:46:52,922 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 13:46:52,922 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 13:46:52,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:46:52" (1/1) ... [2020-12-23 13:46:52,963 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:46:52" (1/1) ... [2020-12-23 13:46:52,988 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 13:46:52,989 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 13:46:52,989 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 13:46:52,989 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 13:46:52,999 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:46:52" (1/1) ... [2020-12-23 13:46:53,000 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:46:52" (1/1) ... [2020-12-23 13:46:53,004 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:46:52" (1/1) ... [2020-12-23 13:46:53,005 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:46:52" (1/1) ... [2020-12-23 13:46:53,012 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:46:52" (1/1) ... [2020-12-23 13:46:53,014 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:46:52" (1/1) ... [2020-12-23 13:46:53,017 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:46:52" (1/1) ... [2020-12-23 13:46:53,020 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 13:46:53,022 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 13:46:53,022 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 13:46:53,022 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 13:46:53,023 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:46:52" (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 13:46:53,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-23 13:46:53,123 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-23 13:46:53,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 13:46:53,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-23 13:46:53,123 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-23 13:46:53,123 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-23 13:46:53,123 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-23 13:46:53,124 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-23 13:46:53,124 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-23 13:46:53,124 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-23 13:46:53,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 13:46:53,124 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-23 13:46:53,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 13:46:53,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 13:46:53,126 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 13:46:53,523 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 13:46:53,523 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-23 13:46:53,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:46:53 BoogieIcfgContainer [2020-12-23 13:46:53,526 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 13:46:53,528 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 13:46:53,528 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 13:46:53,532 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 13:46:53,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 01:46:52" (1/3) ... [2020-12-23 13:46:53,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c2a66b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:46:53, skipping insertion in model container [2020-12-23 13:46:53,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:46:52" (2/3) ... [2020-12-23 13:46:53,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c2a66b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:46:53, skipping insertion in model container [2020-12-23 13:46:53,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:46:53" (3/3) ... [2020-12-23 13:46:53,537 INFO L111 eAbstractionObserver]: Analyzing ICFG safe037_tso.opt.i [2020-12-23 13:46:53,544 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-23 13:46:53,545 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 13:46:53,550 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 13:46:53,551 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-23 13:46:53,596 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:53,597 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:53,597 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:53,597 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:53,598 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:53,598 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:53,598 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:53,599 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:53,600 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:53,600 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:53,601 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:53,601 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:53,602 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:53,602 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:53,602 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:53,602 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:53,603 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:53,603 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:53,603 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:53,604 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:53,605 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:53,605 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:53,605 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:53,605 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:53,606 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:53,606 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:53,607 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:53,607 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:53,607 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:53,608 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:53,608 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:53,608 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:53,609 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:53,610 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:53,610 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:53,610 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:53,614 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:53,614 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:53,614 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:53,615 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:53,621 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:53,621 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:53,621 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:53,622 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:53,626 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:53,626 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:53,627 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:53,627 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:53,630 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-23 13:46:53,662 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-23 13:46:53,691 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 13:46:53,691 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 13:46:53,691 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 13:46:53,692 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 13:46:53,692 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 13:46:53,692 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 13:46:53,692 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 13:46:53,692 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 13:46:53,712 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-23 13:46:53,715 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 76 transitions, 167 flow [2020-12-23 13:46:53,720 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 76 transitions, 167 flow [2020-12-23 13:46:53,723 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 76 transitions, 167 flow [2020-12-23 13:46:53,809 INFO L129 PetriNetUnfolder]: 2/73 cut-off events. [2020-12-23 13:46:53,809 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-12-23 13:46:53,814 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 53 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 13:46:53,818 INFO L116 LiptonReduction]: Number of co-enabled transitions 1296 [2020-12-23 13:46:56,540 WARN L197 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-12-23 13:46:56,849 WARN L197 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-12-23 13:46:57,145 INFO L131 LiptonReduction]: Checked pairs total: 2701 [2020-12-23 13:46:57,145 INFO L133 LiptonReduction]: Total number of compositions: 66 [2020-12-23 13:46:57,152 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2020-12-23 13:46:57,179 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-12-23 13:46:57,181 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-12-23 13:46:57,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-23 13:46:57,188 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:46:57,189 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:46:57,189 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:46:57,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:46:57,210 INFO L82 PathProgramCache]: Analyzing trace with hash -747620084, now seen corresponding path program 1 times [2020-12-23 13:46:57,220 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:46:57,221 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216143700] [2020-12-23 13:46:57,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:46:57,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:46:57,535 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 13:46:57,536 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216143700] [2020-12-23 13:46:57,537 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:46:57,537 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 13:46:57,537 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413046565] [2020-12-23 13:46:57,542 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 13:46:57,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:46:57,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 13:46:57,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 13:46:57,561 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 4 states. [2020-12-23 13:46:57,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:46:57,643 INFO L93 Difference]: Finished difference Result 281 states and 711 transitions. [2020-12-23 13:46:57,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 13:46:57,645 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-12-23 13:46:57,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:46:57,660 INFO L225 Difference]: With dead ends: 281 [2020-12-23 13:46:57,660 INFO L226 Difference]: Without dead ends: 180 [2020-12-23 13:46:57,661 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 13:46:57,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-12-23 13:46:57,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2020-12-23 13:46:57,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2020-12-23 13:46:57,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 440 transitions. [2020-12-23 13:46:57,725 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 440 transitions. Word has length 8 [2020-12-23 13:46:57,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:46:57,726 INFO L481 AbstractCegarLoop]: Abstraction has 180 states and 440 transitions. [2020-12-23 13:46:57,726 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 13:46:57,726 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 440 transitions. [2020-12-23 13:46:57,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-23 13:46:57,728 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:46:57,728 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:46:57,728 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 13:46:57,729 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:46:57,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:46:57,730 INFO L82 PathProgramCache]: Analyzing trace with hash 1314201068, now seen corresponding path program 1 times [2020-12-23 13:46:57,730 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:46:57,730 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945788268] [2020-12-23 13:46:57,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:46:57,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:46:57,892 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 13:46:57,893 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945788268] [2020-12-23 13:46:57,893 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:46:57,893 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 13:46:57,894 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641691640] [2020-12-23 13:46:57,895 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 13:46:57,895 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:46:57,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 13:46:57,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 13:46:57,897 INFO L87 Difference]: Start difference. First operand 180 states and 440 transitions. Second operand 5 states. [2020-12-23 13:46:57,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:46:57,940 INFO L93 Difference]: Finished difference Result 163 states and 368 transitions. [2020-12-23 13:46:57,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 13:46:57,941 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-12-23 13:46:57,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:46:57,942 INFO L225 Difference]: With dead ends: 163 [2020-12-23 13:46:57,943 INFO L226 Difference]: Without dead ends: 126 [2020-12-23 13:46:57,943 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 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 13:46:57,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-12-23 13:46:57,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2020-12-23 13:46:57,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-12-23 13:46:57,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 278 transitions. [2020-12-23 13:46:57,955 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 278 transitions. Word has length 11 [2020-12-23 13:46:57,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:46:57,956 INFO L481 AbstractCegarLoop]: Abstraction has 126 states and 278 transitions. [2020-12-23 13:46:57,956 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 13:46:57,956 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 278 transitions. [2020-12-23 13:46:57,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-23 13:46:57,958 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:46:57,958 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:46:57,958 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 13:46:57,958 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:46:57,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:46:57,959 INFO L82 PathProgramCache]: Analyzing trace with hash 2141841880, now seen corresponding path program 1 times [2020-12-23 13:46:57,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:46:57,960 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413085893] [2020-12-23 13:46:57,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:46:57,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:46:58,044 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 13:46:58,045 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413085893] [2020-12-23 13:46:58,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:46:58,045 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 13:46:58,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143513270] [2020-12-23 13:46:58,047 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 13:46:58,047 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:46:58,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 13:46:58,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-23 13:46:58,051 INFO L87 Difference]: Start difference. First operand 126 states and 278 transitions. Second operand 6 states. [2020-12-23 13:46:58,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:46:58,122 INFO L93 Difference]: Finished difference Result 118 states and 260 transitions. [2020-12-23 13:46:58,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-23 13:46:58,123 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-12-23 13:46:58,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:46:58,127 INFO L225 Difference]: With dead ends: 118 [2020-12-23 13:46:58,127 INFO L226 Difference]: Without dead ends: 108 [2020-12-23 13:46:58,128 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 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 13:46:58,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-12-23 13:46:58,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2020-12-23 13:46:58,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-12-23 13:46:58,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 242 transitions. [2020-12-23 13:46:58,147 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 242 transitions. Word has length 14 [2020-12-23 13:46:58,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:46:58,148 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 242 transitions. [2020-12-23 13:46:58,149 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 13:46:58,149 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 242 transitions. [2020-12-23 13:46:58,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-23 13:46:58,154 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:46:58,154 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:46:58,155 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 13:46:58,155 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:46:58,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:46:58,155 INFO L82 PathProgramCache]: Analyzing trace with hash 1562623596, now seen corresponding path program 1 times [2020-12-23 13:46:58,156 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:46:58,157 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772622849] [2020-12-23 13:46:58,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:46:58,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:46:58,277 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 13:46:58,278 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772622849] [2020-12-23 13:46:58,278 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:46:58,278 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 13:46:58,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965651289] [2020-12-23 13:46:58,279 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 13:46:58,279 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:46:58,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 13:46:58,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 13:46:58,281 INFO L87 Difference]: Start difference. First operand 108 states and 242 transitions. Second operand 4 states. [2020-12-23 13:46:58,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:46:58,298 INFO L93 Difference]: Finished difference Result 133 states and 289 transitions. [2020-12-23 13:46:58,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 13:46:58,299 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-12-23 13:46:58,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:46:58,300 INFO L225 Difference]: With dead ends: 133 [2020-12-23 13:46:58,300 INFO L226 Difference]: Without dead ends: 54 [2020-12-23 13:46:58,300 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 13:46:58,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-12-23 13:46:58,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-12-23 13:46:58,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-12-23 13:46:58,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 98 transitions. [2020-12-23 13:46:58,305 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 98 transitions. Word has length 17 [2020-12-23 13:46:58,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:46:58,305 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 98 transitions. [2020-12-23 13:46:58,305 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 13:46:58,306 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 98 transitions. [2020-12-23 13:46:58,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-23 13:46:58,307 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:46:58,307 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:46:58,307 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 13:46:58,307 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:46:58,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:46:58,308 INFO L82 PathProgramCache]: Analyzing trace with hash -715459562, now seen corresponding path program 2 times [2020-12-23 13:46:58,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:46:58,308 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065857140] [2020-12-23 13:46:58,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:46:58,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:46:58,361 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 13:46:58,362 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065857140] [2020-12-23 13:46:58,362 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:46:58,362 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 13:46:58,363 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518147100] [2020-12-23 13:46:58,363 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 13:46:58,363 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:46:58,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 13:46:58,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 13:46:58,365 INFO L87 Difference]: Start difference. First operand 54 states and 98 transitions. Second operand 4 states. [2020-12-23 13:46:58,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:46:58,380 INFO L93 Difference]: Finished difference Result 67 states and 119 transitions. [2020-12-23 13:46:58,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 13:46:58,380 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-12-23 13:46:58,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:46:58,381 INFO L225 Difference]: With dead ends: 67 [2020-12-23 13:46:58,381 INFO L226 Difference]: Without dead ends: 30 [2020-12-23 13:46:58,381 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 13:46:58,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-12-23 13:46:58,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-12-23 13:46:58,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-12-23 13:46:58,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2020-12-23 13:46:58,384 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 17 [2020-12-23 13:46:58,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:46:58,385 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2020-12-23 13:46:58,385 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 13:46:58,385 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2020-12-23 13:46:58,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-23 13:46:58,386 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:46:58,386 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:46:58,386 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-23 13:46:58,386 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:46:58,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:46:58,387 INFO L82 PathProgramCache]: Analyzing trace with hash 1352885548, now seen corresponding path program 3 times [2020-12-23 13:46:58,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:46:58,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163112204] [2020-12-23 13:46:58,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:46:58,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:46:58,463 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 13:46:58,464 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163112204] [2020-12-23 13:46:58,464 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:46:58,464 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 13:46:58,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636173829] [2020-12-23 13:46:58,466 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 13:46:58,466 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:46:58,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 13:46:58,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 13:46:58,468 INFO L87 Difference]: Start difference. First operand 30 states and 44 transitions. Second operand 4 states. [2020-12-23 13:46:58,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:46:58,481 INFO L93 Difference]: Finished difference Result 29 states and 43 transitions. [2020-12-23 13:46:58,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 13:46:58,481 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-12-23 13:46:58,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:46:58,482 INFO L225 Difference]: With dead ends: 29 [2020-12-23 13:46:58,483 INFO L226 Difference]: Without dead ends: 0 [2020-12-23 13:46:58,483 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 13:46:58,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-23 13:46:58,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-23 13:46:58,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-23 13:46:58,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-23 13:46:58,484 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-12-23 13:46:58,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:46:58,485 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-23 13:46:58,485 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 13:46:58,485 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-23 13:46:58,485 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-23 13:46:58,485 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-23 13:46:58,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 01:46:58 BasicIcfg [2020-12-23 13:46:58,490 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-23 13:46:58,491 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-23 13:46:58,491 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-23 13:46:58,491 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-23 13:46:58,492 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:46:53" (3/4) ... [2020-12-23 13:46:58,497 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-23 13:46:58,505 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-12-23 13:46:58,506 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-12-23 13:46:58,506 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-12-23 13:46:58,517 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-12-23 13:46:58,518 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-23 13:46:58,518 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-23 13:46:58,518 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-23 13:46:58,594 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/pthread-wmm/safe037_tso.opt.i-witness.graphml [2020-12-23 13:46:58,595 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-23 13:46:58,596 INFO L168 Benchmark]: Toolchain (without parser) took 6439.18 ms. Allocated memory was 155.2 MB in the beginning and 204.5 MB in the end (delta: 49.3 MB). Free memory was 129.6 MB in the beginning and 94.9 MB in the end (delta: 34.8 MB). Peak memory consumption was 84.3 MB. Max. memory is 8.0 GB. [2020-12-23 13:46:58,597 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 155.2 MB. Free memory is still 129.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 13:46:58,601 INFO L168 Benchmark]: CACSL2BoogieTranslator took 759.76 ms. Allocated memory is still 155.2 MB. Free memory was 129.4 MB in the beginning and 130.3 MB in the end (delta: -856.8 kB). Peak memory consumption was 26.8 MB. Max. memory is 8.0 GB. [2020-12-23 13:46:58,602 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.03 ms. Allocated memory is still 155.2 MB. Free memory was 130.3 MB in the beginning and 128.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-23 13:46:58,607 INFO L168 Benchmark]: Boogie Preprocessor took 31.77 ms. Allocated memory is still 155.2 MB. Free memory was 128.2 MB in the beginning and 127.1 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 13:46:58,607 INFO L168 Benchmark]: RCFGBuilder took 504.95 ms. Allocated memory is still 155.2 MB. Free memory was 127.1 MB in the beginning and 104.6 MB in the end (delta: 22.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2020-12-23 13:46:58,608 INFO L168 Benchmark]: TraceAbstraction took 4962.10 ms. Allocated memory was 155.2 MB in the beginning and 204.5 MB in the end (delta: 49.3 MB). Free memory was 104.1 MB in the beginning and 97.5 MB in the end (delta: 6.6 MB). Peak memory consumption was 57.4 MB. Max. memory is 8.0 GB. [2020-12-23 13:46:58,608 INFO L168 Benchmark]: Witness Printer took 103.93 ms. Allocated memory is still 204.5 MB. Free memory was 97.5 MB in the beginning and 94.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-23 13:46:58,613 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 155.2 MB. Free memory is still 129.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 759.76 ms. Allocated memory is still 155.2 MB. Free memory was 129.4 MB in the beginning and 130.3 MB in the end (delta: -856.8 kB). Peak memory consumption was 26.8 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 66.03 ms. Allocated memory is still 155.2 MB. Free memory was 130.3 MB in the beginning and 128.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 31.77 ms. Allocated memory is still 155.2 MB. Free memory was 128.2 MB in the beginning and 127.1 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 504.95 ms. Allocated memory is still 155.2 MB. Free memory was 127.1 MB in the beginning and 104.6 MB in the end (delta: 22.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4962.10 ms. Allocated memory was 155.2 MB in the beginning and 204.5 MB in the end (delta: 49.3 MB). Free memory was 104.1 MB in the beginning and 97.5 MB in the end (delta: 6.6 MB). Peak memory consumption was 57.4 MB. Max. memory is 8.0 GB. * Witness Printer took 103.93 ms. Allocated memory is still 204.5 MB. Free memory was 97.5 MB in the beginning and 94.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 837 VarBasedMoverChecksPositive, 36 VarBasedMoverChecksNegative, 5 SemBasedMoverChecksPositive, 31 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 61 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.4s, 84 PlacesBefore, 31 PlacesAfterwards, 76 TransitionsBefore, 21 TransitionsAfterwards, 1296 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 2 ChoiceCompositions, 66 TotalNumberOfCompositions, 2701 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: 4.7s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.4s, HoareTripleCheckerStatistics: 133 SDtfs, 126 SDslu, 200 SDs, 0 SdLazy, 94 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 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: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 78 ConstructedInterpolants, 0 QuantifiedInterpolants, 2802 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...