/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/thin001_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 13:47:10,165 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 13:47:10,168 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 13:47:10,203 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 13:47:10,204 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 13:47:10,206 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 13:47:10,207 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 13:47:10,210 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 13:47:10,212 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 13:47:10,214 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 13:47:10,215 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 13:47:10,217 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 13:47:10,217 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 13:47:10,219 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 13:47:10,220 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 13:47:10,222 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 13:47:10,223 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 13:47:10,224 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 13:47:10,237 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 13:47:10,243 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 13:47:10,248 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 13:47:10,250 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 13:47:10,252 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 13:47:10,254 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 13:47:10,259 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 13:47:10,263 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 13:47:10,263 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 13:47:10,264 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 13:47:10,265 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 13:47:10,270 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 13:47:10,270 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 13:47:10,271 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 13:47:10,272 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 13:47:10,274 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 13:47:10,276 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 13:47:10,276 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 13:47:10,277 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 13:47:10,277 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 13:47:10,284 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 13:47:10,286 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 13:47:10,286 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 13:47:10,288 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 13:47:10,337 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 13:47:10,338 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 13:47:10,342 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 13:47:10,343 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 13:47:10,343 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 13:47:10,343 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 13:47:10,343 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 13:47:10,344 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 13:47:10,344 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 13:47:10,344 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 13:47:10,345 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 13:47:10,345 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 13:47:10,345 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 13:47:10,346 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 13:47:10,346 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 13:47:10,346 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 13:47:10,346 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 13:47:10,346 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 13:47:10,347 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 13:47:10,347 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 13:47:10,347 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 13:47:10,347 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 13:47:10,347 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 13:47:10,347 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 13:47:10,348 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 13:47:10,348 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 13:47:10,717 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 13:47:10,745 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 13:47:10,748 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 13:47:10,749 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 13:47:10,750 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 13:47:10,751 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/thin001_tso.oepc.i [2020-12-23 13:47:10,825 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/5b5a209e7/372010deb9fa4366a57ce114c4970882/FLAG10b59b8fd [2020-12-23 13:47:11,510 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 13:47:11,510 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/thin001_tso.oepc.i [2020-12-23 13:47:11,527 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/5b5a209e7/372010deb9fa4366a57ce114c4970882/FLAG10b59b8fd [2020-12-23 13:47:11,772 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/5b5a209e7/372010deb9fa4366a57ce114c4970882 [2020-12-23 13:47:11,776 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 13:47:11,778 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 13:47:11,784 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 13:47:11,784 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 13:47:11,794 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 13:47:11,794 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:47:11" (1/1) ... [2020-12-23 13:47:11,796 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b90659a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:47:11, skipping insertion in model container [2020-12-23 13:47:11,796 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:47:11" (1/1) ... [2020-12-23 13:47:11,806 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 13:47:11,849 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-23 13:47:12,053 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/thin001_tso.oepc.i[950,963] 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$tmp_guard1~0,GLOBAL] [2020-12-23 13:47:12,330 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 13:47:12,341 INFO L203 MainTranslator]: Completed pre-run [2020-12-23 13:47:12,359 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/thin001_tso.oepc.i[950,963] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p0_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p1_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p2_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~z~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard1~0,GLOBAL] [2020-12-23 13:47:12,434 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 13:47:12,566 INFO L208 MainTranslator]: Completed translation [2020-12-23 13:47:12,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:47:12 WrapperNode [2020-12-23 13:47:12,567 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 13:47:12,568 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 13:47:12,569 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 13:47:12,569 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 13:47:12,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:47:12" (1/1) ... [2020-12-23 13:47:12,595 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:47:12" (1/1) ... [2020-12-23 13:47:12,619 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 13:47:12,620 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 13:47:12,620 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 13:47:12,620 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 13:47:12,631 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:47:12" (1/1) ... [2020-12-23 13:47:12,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:47:12" (1/1) ... [2020-12-23 13:47:12,635 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:47:12" (1/1) ... [2020-12-23 13:47:12,635 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:47:12" (1/1) ... [2020-12-23 13:47:12,642 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:47:12" (1/1) ... [2020-12-23 13:47:12,644 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:47:12" (1/1) ... [2020-12-23 13:47:12,647 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:47:12" (1/1) ... [2020-12-23 13:47:12,650 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 13:47:12,651 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 13:47:12,652 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 13:47:12,652 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 13:47:12,653 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:47:12" (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 13:47:12,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-23 13:47:12,771 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-23 13:47:12,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 13:47:12,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-23 13:47:12,771 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-23 13:47:12,771 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-23 13:47:12,771 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-23 13:47:12,772 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-23 13:47:12,772 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-23 13:47:12,772 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-23 13:47:12,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 13:47:12,772 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-23 13:47:12,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 13:47:12,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 13:47:12,775 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 13:47:13,222 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 13:47:13,222 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-23 13:47:13,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:47:13 BoogieIcfgContainer [2020-12-23 13:47:13,225 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 13:47:13,226 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 13:47:13,226 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 13:47:13,230 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 13:47:13,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 01:47:11" (1/3) ... [2020-12-23 13:47:13,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bdc3ba2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:47:13, skipping insertion in model container [2020-12-23 13:47:13,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:47:12" (2/3) ... [2020-12-23 13:47:13,232 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bdc3ba2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:47:13, skipping insertion in model container [2020-12-23 13:47:13,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:47:13" (3/3) ... [2020-12-23 13:47:13,233 INFO L111 eAbstractionObserver]: Analyzing ICFG thin001_tso.oepc.i [2020-12-23 13:47:13,243 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-23 13:47:13,243 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 13:47:13,252 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 13:47:13,253 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-23 13:47:13,288 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:13,288 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:13,289 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:13,289 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:13,289 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:13,289 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:13,290 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:13,290 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:13,290 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:13,290 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:13,291 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:13,291 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:13,291 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:13,292 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:13,292 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:13,292 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:13,292 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:13,292 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:13,293 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:13,293 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:13,293 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:13,293 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:13,294 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:13,294 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:13,294 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:13,294 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:13,295 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:13,295 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:13,295 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:13,295 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:13,295 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:13,296 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:13,296 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:13,296 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:13,297 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:13,297 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:13,299 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:13,300 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:13,300 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:13,300 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:13,306 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:13,306 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:13,306 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:13,306 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:13,309 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:13,309 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:13,310 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:13,310 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:13,312 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-23 13:47:13,333 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-23 13:47:13,357 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 13:47:13,357 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 13:47:13,357 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 13:47:13,358 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 13:47:13,358 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 13:47:13,358 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 13:47:13,358 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 13:47:13,358 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 13:47:13,372 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-23 13:47:13,375 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 76 transitions, 167 flow [2020-12-23 13:47:13,378 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 76 transitions, 167 flow [2020-12-23 13:47:13,381 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 76 transitions, 167 flow [2020-12-23 13:47:13,434 INFO L129 PetriNetUnfolder]: 2/73 cut-off events. [2020-12-23 13:47:13,435 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-12-23 13:47:13,442 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 13:47:13,449 INFO L116 LiptonReduction]: Number of co-enabled transitions 1296 [2020-12-23 13:47:17,039 WARN L197 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2020-12-23 13:47:17,179 WARN L197 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-12-23 13:47:17,431 WARN L197 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2020-12-23 13:47:17,552 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-12-23 13:47:17,812 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2020-12-23 13:47:17,889 INFO L131 LiptonReduction]: Checked pairs total: 2541 [2020-12-23 13:47:17,889 INFO L133 LiptonReduction]: Total number of compositions: 64 [2020-12-23 13:47:17,896 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2020-12-23 13:47:17,931 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-12-23 13:47:17,934 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-12-23 13:47:17,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-23 13:47:17,941 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:47:17,942 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:47:17,942 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:47:17,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:47:17,949 INFO L82 PathProgramCache]: Analyzing trace with hash 995547002, now seen corresponding path program 1 times [2020-12-23 13:47:17,960 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:47:17,960 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681954369] [2020-12-23 13:47:17,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:47:18,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:47:18,337 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 13:47:18,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681954369] [2020-12-23 13:47:18,339 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:47:18,339 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-23 13:47:18,340 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912913494] [2020-12-23 13:47:18,346 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 13:47:18,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:47:18,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 13:47:18,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 13:47:18,370 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-12-23 13:47:18,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:47:18,434 INFO L93 Difference]: Finished difference Result 360 states and 1001 transitions. [2020-12-23 13:47:18,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 13:47:18,436 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-12-23 13:47:18,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:47:18,454 INFO L225 Difference]: With dead ends: 360 [2020-12-23 13:47:18,454 INFO L226 Difference]: Without dead ends: 233 [2020-12-23 13:47:18,456 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 13:47:18,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2020-12-23 13:47:18,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2020-12-23 13:47:18,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-12-23 13:47:18,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 652 transitions. [2020-12-23 13:47:18,529 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 652 transitions. Word has length 8 [2020-12-23 13:47:18,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:47:18,530 INFO L481 AbstractCegarLoop]: Abstraction has 233 states and 652 transitions. [2020-12-23 13:47:18,530 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 13:47:18,531 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 652 transitions. [2020-12-23 13:47:18,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-23 13:47:18,532 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:47:18,532 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:47:18,532 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 13:47:18,533 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:47:18,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:47:18,533 INFO L82 PathProgramCache]: Analyzing trace with hash 755699245, now seen corresponding path program 1 times [2020-12-23 13:47:18,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:47:18,534 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251946957] [2020-12-23 13:47:18,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:47:18,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:47:18,697 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 13:47:18,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251946957] [2020-12-23 13:47:18,698 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:47:18,698 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 13:47:18,698 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176511150] [2020-12-23 13:47:18,700 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 13:47:18,700 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:47:18,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 13:47:18,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 13:47:18,702 INFO L87 Difference]: Start difference. First operand 233 states and 652 transitions. Second operand 4 states. [2020-12-23 13:47:18,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:47:18,761 INFO L93 Difference]: Finished difference Result 383 states and 1016 transitions. [2020-12-23 13:47:18,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 13:47:18,762 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-12-23 13:47:18,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:47:18,767 INFO L225 Difference]: With dead ends: 383 [2020-12-23 13:47:18,767 INFO L226 Difference]: Without dead ends: 329 [2020-12-23 13:47:18,768 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 13:47:18,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2020-12-23 13:47:18,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 284. [2020-12-23 13:47:18,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 284 states. [2020-12-23 13:47:18,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 779 transitions. [2020-12-23 13:47:18,800 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 779 transitions. Word has length 9 [2020-12-23 13:47:18,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:47:18,800 INFO L481 AbstractCegarLoop]: Abstraction has 284 states and 779 transitions. [2020-12-23 13:47:18,801 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 13:47:18,801 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 779 transitions. [2020-12-23 13:47:18,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-23 13:47:18,802 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:47:18,803 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:47:18,803 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 13:47:18,803 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:47:18,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:47:18,804 INFO L82 PathProgramCache]: Analyzing trace with hash 797195438, now seen corresponding path program 1 times [2020-12-23 13:47:18,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:47:18,804 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532891905] [2020-12-23 13:47:18,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:47:18,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:47:18,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:47:18,920 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532891905] [2020-12-23 13:47:18,920 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:47:18,921 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 13:47:18,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112956527] [2020-12-23 13:47:18,922 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 13:47:18,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:47:18,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 13:47:18,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 13:47:18,923 INFO L87 Difference]: Start difference. First operand 284 states and 779 transitions. Second operand 4 states. [2020-12-23 13:47:18,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:47:18,944 INFO L93 Difference]: Finished difference Result 269 states and 727 transitions. [2020-12-23 13:47:18,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 13:47:18,945 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-12-23 13:47:18,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:47:18,949 INFO L225 Difference]: With dead ends: 269 [2020-12-23 13:47:18,949 INFO L226 Difference]: Without dead ends: 269 [2020-12-23 13:47:18,950 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 13:47:18,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2020-12-23 13:47:18,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 269. [2020-12-23 13:47:18,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2020-12-23 13:47:18,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 727 transitions. [2020-12-23 13:47:18,973 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 727 transitions. Word has length 9 [2020-12-23 13:47:18,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:47:18,974 INFO L481 AbstractCegarLoop]: Abstraction has 269 states and 727 transitions. [2020-12-23 13:47:18,974 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 13:47:18,974 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 727 transitions. [2020-12-23 13:47:18,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-23 13:47:18,976 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:47:18,976 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:47:18,976 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 13:47:18,977 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:47:18,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:47:18,978 INFO L82 PathProgramCache]: Analyzing trace with hash 1951849563, now seen corresponding path program 1 times [2020-12-23 13:47:18,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:47:18,978 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946927013] [2020-12-23 13:47:18,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:47:18,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:47:19,044 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 13:47:19,045 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946927013] [2020-12-23 13:47:19,046 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:47:19,046 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 13:47:19,047 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683411731] [2020-12-23 13:47:19,047 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 13:47:19,047 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:47:19,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 13:47:19,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 13:47:19,051 INFO L87 Difference]: Start difference. First operand 269 states and 727 transitions. Second operand 4 states. [2020-12-23 13:47:19,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:47:19,091 INFO L93 Difference]: Finished difference Result 290 states and 749 transitions. [2020-12-23 13:47:19,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 13:47:19,092 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-12-23 13:47:19,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:47:19,094 INFO L225 Difference]: With dead ends: 290 [2020-12-23 13:47:19,094 INFO L226 Difference]: Without dead ends: 176 [2020-12-23 13:47:19,095 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 13:47:19,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2020-12-23 13:47:19,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 140. [2020-12-23 13:47:19,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-12-23 13:47:19,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 339 transitions. [2020-12-23 13:47:19,123 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 339 transitions. Word has length 10 [2020-12-23 13:47:19,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:47:19,124 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 339 transitions. [2020-12-23 13:47:19,124 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 13:47:19,127 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 339 transitions. [2020-12-23 13:47:19,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-23 13:47:19,129 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:47:19,129 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:47:19,130 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 13:47:19,133 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:47:19,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:47:19,134 INFO L82 PathProgramCache]: Analyzing trace with hash -1183830127, now seen corresponding path program 1 times [2020-12-23 13:47:19,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:47:19,134 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690858515] [2020-12-23 13:47:19,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:47:19,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:47:19,238 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 13:47:19,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690858515] [2020-12-23 13:47:19,238 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:47:19,239 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 13:47:19,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074191821] [2020-12-23 13:47:19,239 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 13:47:19,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:47:19,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 13:47:19,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 13:47:19,243 INFO L87 Difference]: Start difference. First operand 140 states and 339 transitions. Second operand 5 states. [2020-12-23 13:47:19,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:47:19,265 INFO L93 Difference]: Finished difference Result 158 states and 372 transitions. [2020-12-23 13:47:19,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 13:47:19,265 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-12-23 13:47:19,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:47:19,266 INFO L225 Difference]: With dead ends: 158 [2020-12-23 13:47:19,266 INFO L226 Difference]: Without dead ends: 68 [2020-12-23 13:47:19,267 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 13:47:19,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-12-23 13:47:19,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-12-23 13:47:19,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-12-23 13:47:19,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 144 transitions. [2020-12-23 13:47:19,271 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 144 transitions. Word has length 12 [2020-12-23 13:47:19,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:47:19,271 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 144 transitions. [2020-12-23 13:47:19,271 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 13:47:19,271 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 144 transitions. [2020-12-23 13:47:19,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-23 13:47:19,276 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:47:19,276 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:47:19,277 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-23 13:47:19,277 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:47:19,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:47:19,277 INFO L82 PathProgramCache]: Analyzing trace with hash -936336033, now seen corresponding path program 1 times [2020-12-23 13:47:19,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:47:19,278 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173295539] [2020-12-23 13:47:19,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:47:19,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:47:19,369 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 13:47:19,369 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173295539] [2020-12-23 13:47:19,370 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:47:19,370 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 13:47:19,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562741359] [2020-12-23 13:47:19,371 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 13:47:19,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:47:19,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 13:47:19,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 13:47:19,373 INFO L87 Difference]: Start difference. First operand 68 states and 144 transitions. Second operand 5 states. [2020-12-23 13:47:19,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:47:19,386 INFO L93 Difference]: Finished difference Result 56 states and 112 transitions. [2020-12-23 13:47:19,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 13:47:19,386 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-12-23 13:47:19,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:47:19,387 INFO L225 Difference]: With dead ends: 56 [2020-12-23 13:47:19,387 INFO L226 Difference]: Without dead ends: 0 [2020-12-23 13:47:19,387 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 13:47:19,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-23 13:47:19,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-23 13:47:19,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-23 13:47:19,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-23 13:47:19,388 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-12-23 13:47:19,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:47:19,390 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-23 13:47:19,391 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 13:47:19,391 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-23 13:47:19,391 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-23 13:47:19,391 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-23 13:47:19,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 01:47:19 BasicIcfg [2020-12-23 13:47:19,395 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-23 13:47:19,396 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-23 13:47:19,396 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-23 13:47:19,396 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-23 13:47:19,397 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:47:13" (3/4) ... [2020-12-23 13:47:19,402 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-23 13:47:19,411 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-12-23 13:47:19,411 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-12-23 13:47:19,412 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-12-23 13:47:19,419 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-12-23 13:47:19,420 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-23 13:47:19,420 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-23 13:47:19,420 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-23 13:47:19,483 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/pthread-wmm/thin001_tso.oepc.i-witness.graphml [2020-12-23 13:47:19,487 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-23 13:47:19,492 INFO L168 Benchmark]: Toolchain (without parser) took 7710.58 ms. Allocated memory was 161.5 MB in the beginning and 242.2 MB in the end (delta: 80.7 MB). Free memory was 134.5 MB in the beginning and 156.8 MB in the end (delta: -22.3 MB). Peak memory consumption was 58.7 MB. Max. memory is 8.0 GB. [2020-12-23 13:47:19,492 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 161.5 MB. Free memory is still 133.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 13:47:19,493 INFO L168 Benchmark]: CACSL2BoogieTranslator took 784.07 ms. Allocated memory is still 161.5 MB. Free memory was 134.3 MB in the beginning and 138.9 MB in the end (delta: -4.7 MB). Peak memory consumption was 30.9 MB. Max. memory is 8.0 GB. [2020-12-23 13:47:19,493 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.95 ms. Allocated memory is still 161.5 MB. Free memory was 138.9 MB in the beginning and 137.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 13:47:19,495 INFO L168 Benchmark]: Boogie Preprocessor took 30.50 ms. Allocated memory is still 161.5 MB. Free memory was 137.4 MB in the beginning and 135.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-23 13:47:19,496 INFO L168 Benchmark]: RCFGBuilder took 573.21 ms. Allocated memory is still 161.5 MB. Free memory was 135.8 MB in the beginning and 113.8 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-12-23 13:47:19,497 INFO L168 Benchmark]: TraceAbstraction took 6169.32 ms. Allocated memory was 161.5 MB in the beginning and 242.2 MB in the end (delta: 80.7 MB). Free memory was 113.3 MB in the beginning and 159.4 MB in the end (delta: -46.1 MB). Peak memory consumption was 35.1 MB. Max. memory is 8.0 GB. [2020-12-23 13:47:19,497 INFO L168 Benchmark]: Witness Printer took 91.02 ms. Allocated memory is still 242.2 MB. Free memory was 159.4 MB in the beginning and 156.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-23 13:47:19,500 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 161.5 MB. Free memory is still 133.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 784.07 ms. Allocated memory is still 161.5 MB. Free memory was 134.3 MB in the beginning and 138.9 MB in the end (delta: -4.7 MB). Peak memory consumption was 30.9 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 50.95 ms. Allocated memory is still 161.5 MB. Free memory was 138.9 MB in the beginning and 137.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 30.50 ms. Allocated memory is still 161.5 MB. Free memory was 137.4 MB in the beginning and 135.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 573.21 ms. Allocated memory is still 161.5 MB. Free memory was 135.8 MB in the beginning and 113.8 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6169.32 ms. Allocated memory was 161.5 MB in the beginning and 242.2 MB in the end (delta: 80.7 MB). Free memory was 113.3 MB in the beginning and 159.4 MB in the end (delta: -46.1 MB). Peak memory consumption was 35.1 MB. Max. memory is 8.0 GB. * Witness Printer took 91.02 ms. Allocated memory is still 242.2 MB. Free memory was 159.4 MB in the beginning and 156.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 856 VarBasedMoverChecksPositive, 38 VarBasedMoverChecksNegative, 9 SemBasedMoverChecksPositive, 29 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 64 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.5s, 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: 6.0s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.5s, 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, 0.1s 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, 0.2s SatisfiabilityAnalysisTime, 0.5s 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...