/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/thin000_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 13:46:54,317 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 13:46:54,319 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 13:46:54,354 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 13:46:54,354 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 13:46:54,356 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 13:46:54,358 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 13:46:54,360 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 13:46:54,362 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 13:46:54,363 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 13:46:54,364 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 13:46:54,366 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 13:46:54,366 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 13:46:54,367 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 13:46:54,369 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 13:46:54,370 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 13:46:54,371 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 13:46:54,372 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 13:46:54,382 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 13:46:54,384 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 13:46:54,386 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 13:46:54,391 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 13:46:54,393 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 13:46:54,394 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 13:46:54,397 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 13:46:54,397 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 13:46:54,397 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 13:46:54,398 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 13:46:54,399 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 13:46:54,400 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 13:46:54,400 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 13:46:54,401 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 13:46:54,402 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 13:46:54,403 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 13:46:54,404 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 13:46:54,404 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 13:46:54,405 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 13:46:54,405 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 13:46:54,406 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 13:46:54,407 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 13:46:54,407 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 13:46:54,408 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 13:46:54,436 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 13:46:54,436 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 13:46:54,437 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 13:46:54,438 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 13:46:54,438 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 13:46:54,438 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 13:46:54,439 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 13:46:54,439 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 13:46:54,439 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 13:46:54,439 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 13:46:54,440 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 13:46:54,440 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 13:46:54,440 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 13:46:54,441 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 13:46:54,441 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 13:46:54,441 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 13:46:54,441 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 13:46:54,442 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 13:46:54,442 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 13:46:54,442 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 13:46:54,442 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 13:46:54,443 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 13:46:54,443 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 13:46:54,443 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 13:46:54,443 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 13:46:54,444 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 13:46:54,791 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 13:46:54,839 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 13:46:54,843 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 13:46:54,845 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 13:46:54,845 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 13:46:54,846 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/thin000_pso.opt.i [2020-12-23 13:46:54,924 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/52d97c46f/09c2065ee1e04652997f842c63b5e213/FLAG96958a33b [2020-12-23 13:46:55,671 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 13:46:55,672 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/thin000_pso.opt.i [2020-12-23 13:46:55,695 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/52d97c46f/09c2065ee1e04652997f842c63b5e213/FLAG96958a33b [2020-12-23 13:46:55,933 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/52d97c46f/09c2065ee1e04652997f842c63b5e213 [2020-12-23 13:46:55,936 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 13:46:55,938 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 13:46:55,939 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 13:46:55,940 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 13:46:55,943 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 13:46:55,944 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:46:55" (1/1) ... [2020-12-23 13:46:55,945 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b80a895 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:46:55, skipping insertion in model container [2020-12-23 13:46:55,946 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:46:55" (1/1) ... [2020-12-23 13:46:55,960 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 13:46:56,019 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-23 13:46:56,183 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/thin000_pso.opt.i[949,962] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p0_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~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[~main$tmp_guard0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard1~0,GLOBAL] [2020-12-23 13:46:56,356 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 13:46:56,366 INFO L203 MainTranslator]: Completed pre-run [2020-12-23 13:46:56,380 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/thin000_pso.opt.i[949,962] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p0_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p1_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard1~0,GLOBAL] [2020-12-23 13:46:56,423 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 13:46:56,536 INFO L208 MainTranslator]: Completed translation [2020-12-23 13:46:56,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:46:56 WrapperNode [2020-12-23 13:46:56,537 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 13:46:56,539 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 13:46:56,539 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 13:46:56,539 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 13:46:56,546 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:46:56" (1/1) ... [2020-12-23 13:46:56,562 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:46:56" (1/1) ... [2020-12-23 13:46:56,583 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 13:46:56,584 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 13:46:56,584 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 13:46:56,585 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 13:46:56,593 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:46:56" (1/1) ... [2020-12-23 13:46:56,594 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:46:56" (1/1) ... [2020-12-23 13:46:56,597 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:46:56" (1/1) ... [2020-12-23 13:46:56,597 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:46:56" (1/1) ... [2020-12-23 13:46:56,604 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:46:56" (1/1) ... [2020-12-23 13:46:56,606 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:46:56" (1/1) ... [2020-12-23 13:46:56,608 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:46:56" (1/1) ... [2020-12-23 13:46:56,611 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 13:46:56,612 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 13:46:56,612 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 13:46:56,612 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 13:46:56,613 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:46:56" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 13:46:56,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-23 13:46:56,716 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-23 13:46:56,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 13:46:56,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-23 13:46:56,716 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-23 13:46:56,716 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-23 13:46:56,717 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-23 13:46:56,717 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-23 13:46:56,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 13:46:56,717 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-23 13:46:56,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 13:46:56,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 13:46:56,719 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 13:46:57,044 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 13:46:57,045 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-23 13:46:57,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:46:57 BoogieIcfgContainer [2020-12-23 13:46:57,047 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 13:46:57,049 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 13:46:57,049 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 13:46:57,052 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 13:46:57,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 01:46:55" (1/3) ... [2020-12-23 13:46:57,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21a94b26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:46:57, skipping insertion in model container [2020-12-23 13:46:57,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:46:56" (2/3) ... [2020-12-23 13:46:57,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21a94b26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:46:57, skipping insertion in model container [2020-12-23 13:46:57,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:46:57" (3/3) ... [2020-12-23 13:46:57,056 INFO L111 eAbstractionObserver]: Analyzing ICFG thin000_pso.opt.i [2020-12-23 13:46:57,063 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-23 13:46:57,063 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 13:46:57,068 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 13:46:57,069 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-23 13:46:57,096 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:57,097 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:57,097 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:57,097 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:57,097 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:57,098 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:57,098 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:57,098 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:57,099 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:57,099 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:57,099 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:57,099 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:57,100 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:57,100 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:57,100 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:57,100 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:57,101 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:57,101 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:57,101 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:57,101 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:57,102 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:57,102 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:57,102 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:57,103 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:57,105 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:57,106 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:57,106 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:57,106 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:57,111 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:57,111 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:57,112 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:57,112 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:57,114 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-23 13:46:57,135 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-23 13:46:57,160 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 13:46:57,160 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 13:46:57,161 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 13:46:57,161 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 13:46:57,161 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 13:46:57,161 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 13:46:57,161 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 13:46:57,161 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 13:46:57,182 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-23 13:46:57,185 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 61 transitions, 132 flow [2020-12-23 13:46:57,190 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 61 transitions, 132 flow [2020-12-23 13:46:57,192 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 61 transitions, 132 flow [2020-12-23 13:46:57,236 INFO L129 PetriNetUnfolder]: 2/59 cut-off events. [2020-12-23 13:46:57,237 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-12-23 13:46:57,247 INFO L84 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 59 events. 2/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 35 event pairs, 0 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2020-12-23 13:46:57,252 INFO L116 LiptonReduction]: Number of co-enabled transitions 696 [2020-12-23 13:46:59,485 WARN L197 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-12-23 13:46:59,773 WARN L197 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-12-23 13:46:59,849 INFO L131 LiptonReduction]: Checked pairs total: 1534 [2020-12-23 13:46:59,849 INFO L133 LiptonReduction]: Total number of compositions: 54 [2020-12-23 13:46:59,857 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 23 places, 17 transitions, 44 flow [2020-12-23 13:46:59,870 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 90 states. [2020-12-23 13:46:59,872 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states. [2020-12-23 13:46:59,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-23 13:46:59,878 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:46:59,879 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-23 13:46:59,879 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:46:59,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:46:59,885 INFO L82 PathProgramCache]: Analyzing trace with hash -1865753681, now seen corresponding path program 1 times [2020-12-23 13:46:59,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:46:59,896 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331528530] [2020-12-23 13:46:59,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:47:00,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:47:00,125 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 13:47:00,126 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331528530] [2020-12-23 13:47:00,127 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:47:00,127 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 13:47:00,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899791250] [2020-12-23 13:47:00,134 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-23 13:47:00,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:47:00,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-23 13:47:00,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 13:47:00,158 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 2 states. [2020-12-23 13:47:00,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:47:00,185 INFO L93 Difference]: Finished difference Result 90 states and 200 transitions. [2020-12-23 13:47:00,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-23 13:47:00,187 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2020-12-23 13:47:00,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:47:00,198 INFO L225 Difference]: With dead ends: 90 [2020-12-23 13:47:00,198 INFO L226 Difference]: Without dead ends: 74 [2020-12-23 13:47:00,199 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 13:47:00,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-12-23 13:47:00,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-12-23 13:47:00,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-12-23 13:47:00,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 160 transitions. [2020-12-23 13:47:00,245 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 160 transitions. Word has length 6 [2020-12-23 13:47:00,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:47:00,246 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 160 transitions. [2020-12-23 13:47:00,246 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-23 13:47:00,246 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 160 transitions. [2020-12-23 13:47:00,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-23 13:47:00,247 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:47:00,247 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:47:00,248 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 13:47:00,248 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:47:00,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:47:00,249 INFO L82 PathProgramCache]: Analyzing trace with hash -2003798512, now seen corresponding path program 1 times [2020-12-23 13:47:00,249 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:47:00,249 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957292264] [2020-12-23 13:47:00,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:47:00,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:47:00,407 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 13:47:00,408 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957292264] [2020-12-23 13:47:00,408 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:47:00,408 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 13:47:00,408 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448259710] [2020-12-23 13:47:00,412 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 13:47:00,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:47:00,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 13:47:00,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 13:47:00,413 INFO L87 Difference]: Start difference. First operand 74 states and 160 transitions. Second operand 4 states. [2020-12-23 13:47:00,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:47:00,449 INFO L93 Difference]: Finished difference Result 88 states and 179 transitions. [2020-12-23 13:47:00,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 13:47:00,449 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-12-23 13:47:00,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:47:00,451 INFO L225 Difference]: With dead ends: 88 [2020-12-23 13:47:00,451 INFO L226 Difference]: Without dead ends: 72 [2020-12-23 13:47:00,452 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 13:47:00,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-12-23 13:47:00,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2020-12-23 13:47:00,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-12-23 13:47:00,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 154 transitions. [2020-12-23 13:47:00,462 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 154 transitions. Word has length 7 [2020-12-23 13:47:00,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:47:00,463 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 154 transitions. [2020-12-23 13:47:00,463 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 13:47:00,463 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 154 transitions. [2020-12-23 13:47:00,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-23 13:47:00,464 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:47:00,464 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:47:00,464 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 13:47:00,464 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:47:00,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:47:00,465 INFO L82 PathProgramCache]: Analyzing trace with hash -1988772591, now seen corresponding path program 1 times [2020-12-23 13:47:00,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:47:00,466 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231291284] [2020-12-23 13:47:00,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:47:00,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:47:00,539 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 13:47:00,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231291284] [2020-12-23 13:47:00,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:47:00,540 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 13:47:00,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592280650] [2020-12-23 13:47:00,540 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 13:47:00,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:47:00,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 13:47:00,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 13:47:00,544 INFO L87 Difference]: Start difference. First operand 72 states and 154 transitions. Second operand 5 states. [2020-12-23 13:47:00,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:47:00,632 INFO L93 Difference]: Finished difference Result 123 states and 245 transitions. [2020-12-23 13:47:00,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-23 13:47:00,632 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2020-12-23 13:47:00,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:47:00,635 INFO L225 Difference]: With dead ends: 123 [2020-12-23 13:47:00,636 INFO L226 Difference]: Without dead ends: 84 [2020-12-23 13:47:00,636 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-23 13:47:00,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-12-23 13:47:00,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 66. [2020-12-23 13:47:00,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-12-23 13:47:00,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 136 transitions. [2020-12-23 13:47:00,655 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 136 transitions. Word has length 8 [2020-12-23 13:47:00,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:47:00,655 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 136 transitions. [2020-12-23 13:47:00,656 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 13:47:00,656 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 136 transitions. [2020-12-23 13:47:00,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-23 13:47:00,656 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:47:00,657 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:47:00,657 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 13:47:00,658 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:47:00,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:47:00,660 INFO L82 PathProgramCache]: Analyzing trace with hash -1988232509, now seen corresponding path program 1 times [2020-12-23 13:47:00,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:47:00,662 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981814298] [2020-12-23 13:47:00,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:47:00,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:47:00,768 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 13:47:00,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981814298] [2020-12-23 13:47:00,769 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:47:00,769 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 13:47:00,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408997017] [2020-12-23 13:47:00,770 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 13:47:00,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:47:00,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 13:47:00,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 13:47:00,772 INFO L87 Difference]: Start difference. First operand 66 states and 136 transitions. Second operand 5 states. [2020-12-23 13:47:00,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:47:00,792 INFO L93 Difference]: Finished difference Result 72 states and 140 transitions. [2020-12-23 13:47:00,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 13:47:00,793 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2020-12-23 13:47:00,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:47:00,796 INFO L225 Difference]: With dead ends: 72 [2020-12-23 13:47:00,797 INFO L226 Difference]: Without dead ends: 60 [2020-12-23 13:47:00,797 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-23 13:47:00,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-12-23 13:47:00,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-12-23 13:47:00,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-12-23 13:47:00,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 120 transitions. [2020-12-23 13:47:00,831 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 120 transitions. Word has length 8 [2020-12-23 13:47:00,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:47:00,832 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 120 transitions. [2020-12-23 13:47:00,832 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 13:47:00,832 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 120 transitions. [2020-12-23 13:47:00,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-23 13:47:00,833 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:47:00,833 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:47:00,833 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 13:47:00,833 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:47:00,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:47:00,833 INFO L82 PathProgramCache]: Analyzing trace with hash -1522428958, now seen corresponding path program 1 times [2020-12-23 13:47:00,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:47:00,834 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137375126] [2020-12-23 13:47:00,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:47:00,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:47:00,893 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 13:47:00,894 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137375126] [2020-12-23 13:47:00,894 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:47:00,894 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 13:47:00,894 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81729773] [2020-12-23 13:47:00,895 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 13:47:00,895 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:47:00,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 13:47:00,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-23 13:47:00,896 INFO L87 Difference]: Start difference. First operand 60 states and 120 transitions. Second operand 6 states. [2020-12-23 13:47:00,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:47:00,931 INFO L93 Difference]: Finished difference Result 75 states and 145 transitions. [2020-12-23 13:47:00,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 13:47:00,932 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2020-12-23 13:47:00,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:47:00,933 INFO L225 Difference]: With dead ends: 75 [2020-12-23 13:47:00,933 INFO L226 Difference]: Without dead ends: 42 [2020-12-23 13:47:00,933 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-12-23 13:47:00,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-12-23 13:47:00,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-12-23 13:47:00,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-12-23 13:47:00,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 76 transitions. [2020-12-23 13:47:00,937 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 76 transitions. Word has length 9 [2020-12-23 13:47:00,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:47:00,937 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 76 transitions. [2020-12-23 13:47:00,937 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 13:47:00,937 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 76 transitions. [2020-12-23 13:47:00,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-23 13:47:00,938 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:47:00,938 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:47:00,938 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-23 13:47:00,939 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:47:00,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:47:00,939 INFO L82 PathProgramCache]: Analyzing trace with hash 567543910, now seen corresponding path program 1 times [2020-12-23 13:47:00,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:47:00,940 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552349135] [2020-12-23 13:47:00,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:47:00,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:47:00,993 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 13:47:00,993 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552349135] [2020-12-23 13:47:00,993 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:47:00,994 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 13:47:00,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338053566] [2020-12-23 13:47:00,994 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 13:47:00,994 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:47:00,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 13:47:00,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-23 13:47:00,995 INFO L87 Difference]: Start difference. First operand 42 states and 76 transitions. Second operand 6 states. [2020-12-23 13:47:01,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:47:01,030 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2020-12-23 13:47:01,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 13:47:01,030 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-12-23 13:47:01,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:47:01,031 INFO L225 Difference]: With dead ends: 36 [2020-12-23 13:47:01,031 INFO L226 Difference]: Without dead ends: 0 [2020-12-23 13:47:01,031 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-12-23 13:47:01,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-23 13:47:01,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-23 13:47:01,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-23 13:47:01,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-23 13:47:01,032 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2020-12-23 13:47:01,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:47:01,032 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-23 13:47:01,033 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 13:47:01,033 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-23 13:47:01,033 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-23 13:47:01,033 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-23 13:47:01,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 01:47:01 BasicIcfg [2020-12-23 13:47:01,037 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-23 13:47:01,037 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-23 13:47:01,038 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-23 13:47:01,038 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-23 13:47:01,038 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:46:57" (3/4) ... [2020-12-23 13:47:01,042 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-23 13:47:01,049 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-12-23 13:47:01,049 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-12-23 13:47:01,054 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-12-23 13:47:01,054 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-23 13:47:01,054 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-23 13:47:01,054 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-23 13:47:01,096 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/pthread-wmm/thin000_pso.opt.i-witness.graphml [2020-12-23 13:47:01,096 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-23 13:47:01,098 INFO L168 Benchmark]: Toolchain (without parser) took 5159.94 ms. Allocated memory was 174.1 MB in the beginning and 209.7 MB in the end (delta: 35.7 MB). Free memory was 149.0 MB in the beginning and 157.7 MB in the end (delta: -8.7 MB). Peak memory consumption was 28.5 MB. Max. memory is 8.0 GB. [2020-12-23 13:47:01,098 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 174.1 MB. Free memory is still 145.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 13:47:01,099 INFO L168 Benchmark]: CACSL2BoogieTranslator took 598.42 ms. Allocated memory is still 174.1 MB. Free memory was 148.8 MB in the beginning and 154.0 MB in the end (delta: -5.2 MB). Peak memory consumption was 32.5 MB. Max. memory is 8.0 GB. [2020-12-23 13:47:01,100 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.05 ms. Allocated memory is still 174.1 MB. Free memory was 154.0 MB in the beginning and 152.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 13:47:01,100 INFO L168 Benchmark]: Boogie Preprocessor took 27.15 ms. Allocated memory is still 174.1 MB. Free memory was 152.1 MB in the beginning and 150.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-23 13:47:01,101 INFO L168 Benchmark]: RCFGBuilder took 434.92 ms. Allocated memory is still 174.1 MB. Free memory was 150.6 MB in the beginning and 130.6 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-12-23 13:47:01,102 INFO L168 Benchmark]: TraceAbstraction took 3988.30 ms. Allocated memory was 174.1 MB in the beginning and 209.7 MB in the end (delta: 35.7 MB). Free memory was 130.1 MB in the beginning and 160.4 MB in the end (delta: -30.2 MB). Peak memory consumption was 5.4 MB. Max. memory is 8.0 GB. [2020-12-23 13:47:01,102 INFO L168 Benchmark]: Witness Printer took 59.15 ms. Allocated memory is still 209.7 MB. Free memory was 160.4 MB in the beginning and 157.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-23 13:47:01,106 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 174.1 MB. Free memory is still 145.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 598.42 ms. Allocated memory is still 174.1 MB. Free memory was 148.8 MB in the beginning and 154.0 MB in the end (delta: -5.2 MB). Peak memory consumption was 32.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 45.05 ms. Allocated memory is still 174.1 MB. Free memory was 154.0 MB in the beginning and 152.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 27.15 ms. Allocated memory is still 174.1 MB. Free memory was 152.1 MB in the beginning and 150.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 434.92 ms. Allocated memory is still 174.1 MB. Free memory was 150.6 MB in the beginning and 130.6 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3988.30 ms. Allocated memory was 174.1 MB in the beginning and 209.7 MB in the end (delta: 35.7 MB). Free memory was 130.1 MB in the beginning and 160.4 MB in the end (delta: -30.2 MB). Peak memory consumption was 5.4 MB. Max. memory is 8.0 GB. * Witness Printer took 59.15 ms. Allocated memory is still 209.7 MB. Free memory was 160.4 MB in the beginning and 157.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 504 VarBasedMoverChecksPositive, 24 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 22 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 54 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.6s, 66 PlacesBefore, 23 PlacesAfterwards, 61 TransitionsBefore, 17 TransitionsAfterwards, 696 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 54 TotalNumberOfCompositions, 1534 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 3 procedures, 60 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.8s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.7s, HoareTripleCheckerStatistics: 98 SDtfs, 105 SDslu, 143 SDs, 0 SdLazy, 53 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred 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, 18 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 1270 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...