/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/safe029_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 13:45:12,711 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 13:45:12,715 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 13:45:12,776 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 13:45:12,777 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 13:45:12,781 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 13:45:12,785 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 13:45:12,791 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 13:45:12,803 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 13:45:12,807 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 13:45:12,809 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 13:45:12,813 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 13:45:12,814 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 13:45:12,819 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 13:45:12,820 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 13:45:12,823 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 13:45:12,825 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 13:45:12,828 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 13:45:12,837 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 13:45:12,842 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 13:45:12,847 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 13:45:12,849 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 13:45:12,851 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 13:45:12,853 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 13:45:12,864 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 13:45:12,864 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 13:45:12,865 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 13:45:12,866 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 13:45:12,866 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 13:45:12,868 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 13:45:12,868 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 13:45:12,869 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 13:45:12,870 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 13:45:12,871 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 13:45:12,872 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 13:45:12,873 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 13:45:12,874 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 13:45:12,874 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 13:45:12,874 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 13:45:12,876 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 13:45:12,876 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 13:45:12,878 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 13:45:12,904 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 13:45:12,904 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 13:45:12,906 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 13:45:12,906 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 13:45:12,907 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 13:45:12,907 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 13:45:12,907 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 13:45:12,908 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 13:45:12,908 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 13:45:12,908 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 13:45:12,908 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 13:45:12,909 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 13:45:12,909 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 13:45:12,909 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 13:45:12,909 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 13:45:12,910 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 13:45:12,910 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 13:45:12,910 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 13:45:12,910 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 13:45:12,911 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 13:45:12,911 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 13:45:12,911 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 13:45:12,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 13:45:12,912 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 13:45:12,912 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 13:45:12,912 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 13:45:13,352 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 13:45:13,377 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 13:45:13,380 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 13:45:13,381 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 13:45:13,382 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 13:45:13,383 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe029_tso.opt.i [2020-12-23 13:45:13,471 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/a2060de5b/4a8cd80980d44370bbd5890e40c25701/FLAGccc66ff8b [2020-12-23 13:45:14,245 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 13:45:14,245 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe029_tso.opt.i [2020-12-23 13:45:14,264 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/a2060de5b/4a8cd80980d44370bbd5890e40c25701/FLAGccc66ff8b [2020-12-23 13:45:14,502 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/a2060de5b/4a8cd80980d44370bbd5890e40c25701 [2020-12-23 13:45:14,506 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 13:45:14,508 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 13:45:14,511 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 13:45:14,511 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 13:45:14,517 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 13:45:14,519 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:45:14" (1/1) ... [2020-12-23 13:45:14,522 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ac04832 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:45:14, skipping insertion in model container [2020-12-23 13:45:14,522 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:45:14" (1/1) ... [2020-12-23 13:45:14,531 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 13:45:14,603 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-23 13:45:14,769 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/safe029_tso.opt.i[949,962] left hand side expression in assignment: lhs: VariableLHS[~y~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[~x~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$tmp_guard1~0,GLOBAL] [2020-12-23 13:45:15,012 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 13:45:15,026 INFO L203 MainTranslator]: Completed pre-run [2020-12-23 13:45:15,047 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe029_tso.opt.i[949,962] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard1~0,GLOBAL] [2020-12-23 13:45:15,112 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 13:45:15,269 INFO L208 MainTranslator]: Completed translation [2020-12-23 13:45:15,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:45:15 WrapperNode [2020-12-23 13:45:15,270 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 13:45:15,272 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 13:45:15,272 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 13:45:15,272 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 13:45:15,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:45:15" (1/1) ... [2020-12-23 13:45:15,299 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:45:15" (1/1) ... [2020-12-23 13:45:15,322 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 13:45:15,323 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 13:45:15,323 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 13:45:15,323 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 13:45:15,333 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:45:15" (1/1) ... [2020-12-23 13:45:15,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:45:15" (1/1) ... [2020-12-23 13:45:15,337 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:45:15" (1/1) ... [2020-12-23 13:45:15,337 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:45:15" (1/1) ... [2020-12-23 13:45:15,344 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:45:15" (1/1) ... [2020-12-23 13:45:15,346 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:45:15" (1/1) ... [2020-12-23 13:45:15,348 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:45:15" (1/1) ... [2020-12-23 13:45:15,351 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 13:45:15,352 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 13:45:15,352 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 13:45:15,352 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 13:45:15,354 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:45:15" (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 13:45:15,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-23 13:45:15,468 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-23 13:45:15,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 13:45:15,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-23 13:45:15,468 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-23 13:45:15,468 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-23 13:45:15,468 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-23 13:45:15,469 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-23 13:45:15,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 13:45:15,469 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-23 13:45:15,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 13:45:15,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 13:45:15,471 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 13:45:15,948 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 13:45:15,949 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-23 13:45:15,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:45:15 BoogieIcfgContainer [2020-12-23 13:45:15,952 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 13:45:15,955 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 13:45:15,955 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 13:45:15,959 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 13:45:15,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 01:45:14" (1/3) ... [2020-12-23 13:45:15,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34c5f3cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:45:15, skipping insertion in model container [2020-12-23 13:45:15,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:45:15" (2/3) ... [2020-12-23 13:45:15,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34c5f3cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:45:15, skipping insertion in model container [2020-12-23 13:45:15,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:45:15" (3/3) ... [2020-12-23 13:45:15,964 INFO L111 eAbstractionObserver]: Analyzing ICFG safe029_tso.opt.i [2020-12-23 13:45:15,971 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-23 13:45:15,972 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 13:45:15,977 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 13:45:15,978 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-23 13:45:16,028 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:16,029 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:16,029 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:16,029 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:16,029 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:16,030 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:16,030 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:16,030 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:16,030 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:16,031 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:16,031 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:16,031 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:16,032 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:16,032 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:16,032 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:16,032 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:16,032 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:16,033 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:16,033 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:16,033 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:16,033 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:16,034 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:16,034 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:16,034 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:16,036 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:16,037 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:16,037 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:16,037 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:16,043 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:16,043 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:16,043 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:16,043 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:16,046 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-23 13:45:16,066 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-23 13:45:16,089 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 13:45:16,089 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 13:45:16,090 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 13:45:16,090 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 13:45:16,090 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 13:45:16,090 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 13:45:16,090 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 13:45:16,090 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 13:45:16,104 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-23 13:45:16,106 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 59 transitions, 128 flow [2020-12-23 13:45:16,109 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 59 transitions, 128 flow [2020-12-23 13:45:16,111 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 64 places, 59 transitions, 128 flow [2020-12-23 13:45:16,153 INFO L129 PetriNetUnfolder]: 2/57 cut-off events. [2020-12-23 13:45:16,153 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-12-23 13:45:16,157 INFO L84 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 57 events. 2/57 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 40 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2020-12-23 13:45:16,160 INFO L116 LiptonReduction]: Number of co-enabled transitions 696 [2020-12-23 13:45:18,359 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-12-23 13:45:18,876 WARN L197 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2020-12-23 13:45:19,181 WARN L197 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2020-12-23 13:45:19,362 INFO L131 LiptonReduction]: Checked pairs total: 1340 [2020-12-23 13:45:19,362 INFO L133 LiptonReduction]: Total number of compositions: 53 [2020-12-23 13:45:19,369 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 23 places, 17 transitions, 44 flow [2020-12-23 13:45:19,383 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 90 states. [2020-12-23 13:45:19,385 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states. [2020-12-23 13:45:19,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-23 13:45:19,392 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:45:19,393 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-23 13:45:19,393 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:45:19,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:45:19,400 INFO L82 PathProgramCache]: Analyzing trace with hash -2070123945, now seen corresponding path program 1 times [2020-12-23 13:45:19,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:45:19,411 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354232351] [2020-12-23 13:45:19,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:45:19,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:45:19,595 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 13:45:19,595 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354232351] [2020-12-23 13:45:19,597 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:45:19,597 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 13:45:19,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712332694] [2020-12-23 13:45:19,603 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-23 13:45:19,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:45:19,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-23 13:45:19,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 13:45:19,629 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 2 states. [2020-12-23 13:45:19,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:45:19,659 INFO L93 Difference]: Finished difference Result 90 states and 200 transitions. [2020-12-23 13:45:19,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-23 13:45:19,662 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2020-12-23 13:45:19,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:45:19,678 INFO L225 Difference]: With dead ends: 90 [2020-12-23 13:45:19,678 INFO L226 Difference]: Without dead ends: 74 [2020-12-23 13:45:19,679 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 13:45:19,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-12-23 13:45:19,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-12-23 13:45:19,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-12-23 13:45:19,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 160 transitions. [2020-12-23 13:45:19,743 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 160 transitions. Word has length 6 [2020-12-23 13:45:19,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:45:19,743 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 160 transitions. [2020-12-23 13:45:19,743 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-23 13:45:19,744 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 160 transitions. [2020-12-23 13:45:19,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-23 13:45:19,745 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:45:19,745 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:45:19,745 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 13:45:19,745 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:45:19,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:45:19,752 INFO L82 PathProgramCache]: Analyzing trace with hash 250664680, now seen corresponding path program 1 times [2020-12-23 13:45:19,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:45:19,753 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403776003] [2020-12-23 13:45:19,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:45:19,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:45:19,996 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 13:45:19,997 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403776003] [2020-12-23 13:45:19,997 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:45:19,997 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 13:45:19,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49368993] [2020-12-23 13:45:19,999 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 13:45:19,999 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:45:20,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 13:45:20,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 13:45:20,001 INFO L87 Difference]: Start difference. First operand 74 states and 160 transitions. Second operand 4 states. [2020-12-23 13:45:20,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:45:20,069 INFO L93 Difference]: Finished difference Result 108 states and 221 transitions. [2020-12-23 13:45:20,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 13:45:20,070 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-12-23 13:45:20,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:45:20,072 INFO L225 Difference]: With dead ends: 108 [2020-12-23 13:45:20,072 INFO L226 Difference]: Without dead ends: 72 [2020-12-23 13:45:20,073 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 13:45:20,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-12-23 13:45:20,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 64. [2020-12-23 13:45:20,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-12-23 13:45:20,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 122 transitions. [2020-12-23 13:45:20,084 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 122 transitions. Word has length 7 [2020-12-23 13:45:20,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:45:20,084 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 122 transitions. [2020-12-23 13:45:20,085 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 13:45:20,085 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 122 transitions. [2020-12-23 13:45:20,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-23 13:45:20,085 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:45:20,086 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:45:20,086 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 13:45:20,086 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:45:20,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:45:20,087 INFO L82 PathProgramCache]: Analyzing trace with hash -1104300190, now seen corresponding path program 1 times [2020-12-23 13:45:20,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:45:20,087 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405461978] [2020-12-23 13:45:20,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:45:20,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:45:20,165 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 13:45:20,166 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405461978] [2020-12-23 13:45:20,166 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:45:20,166 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 13:45:20,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101436425] [2020-12-23 13:45:20,167 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 13:45:20,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:45:20,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 13:45:20,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 13:45:20,168 INFO L87 Difference]: Start difference. First operand 64 states and 122 transitions. Second operand 5 states. [2020-12-23 13:45:20,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:45:20,243 INFO L93 Difference]: Finished difference Result 80 states and 145 transitions. [2020-12-23 13:45:20,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-23 13:45:20,243 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2020-12-23 13:45:20,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:45:20,245 INFO L225 Difference]: With dead ends: 80 [2020-12-23 13:45:20,245 INFO L226 Difference]: Without dead ends: 66 [2020-12-23 13:45:20,245 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-23 13:45:20,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-12-23 13:45:20,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 58. [2020-12-23 13:45:20,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-12-23 13:45:20,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 108 transitions. [2020-12-23 13:45:20,253 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 108 transitions. Word has length 8 [2020-12-23 13:45:20,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:45:20,253 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 108 transitions. [2020-12-23 13:45:20,253 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 13:45:20,254 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 108 transitions. [2020-12-23 13:45:20,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-23 13:45:20,254 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:45:20,254 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:45:20,255 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 13:45:20,255 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:45:20,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:45:20,255 INFO L82 PathProgramCache]: Analyzing trace with hash -820302587, now seen corresponding path program 1 times [2020-12-23 13:45:20,256 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:45:20,256 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562661596] [2020-12-23 13:45:20,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:45:20,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:45:20,325 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 13:45:20,325 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562661596] [2020-12-23 13:45:20,326 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:45:20,326 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 13:45:20,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502684171] [2020-12-23 13:45:20,327 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 13:45:20,327 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:45:20,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 13:45:20,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 13:45:20,328 INFO L87 Difference]: Start difference. First operand 58 states and 108 transitions. Second operand 4 states. [2020-12-23 13:45:20,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:45:20,361 INFO L93 Difference]: Finished difference Result 64 states and 112 transitions. [2020-12-23 13:45:20,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 13:45:20,361 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-12-23 13:45:20,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:45:20,363 INFO L225 Difference]: With dead ends: 64 [2020-12-23 13:45:20,363 INFO L226 Difference]: Without dead ends: 52 [2020-12-23 13:45:20,364 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 13:45:20,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-12-23 13:45:20,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-12-23 13:45:20,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-12-23 13:45:20,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 94 transitions. [2020-12-23 13:45:20,372 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 94 transitions. Word has length 8 [2020-12-23 13:45:20,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:45:20,372 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 94 transitions. [2020-12-23 13:45:20,372 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 13:45:20,372 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 94 transitions. [2020-12-23 13:45:20,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-23 13:45:20,373 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:45:20,373 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:45:20,374 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 13:45:20,374 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:45:20,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:45:20,375 INFO L82 PathProgramCache]: Analyzing trace with hash 125459403, now seen corresponding path program 1 times [2020-12-23 13:45:20,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:45:20,375 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880816851] [2020-12-23 13:45:20,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:45:20,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:45:20,421 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 13:45:20,422 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880816851] [2020-12-23 13:45:20,422 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:45:20,422 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 13:45:20,422 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199028958] [2020-12-23 13:45:20,423 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 13:45:20,423 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:45:20,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 13:45:20,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 13:45:20,424 INFO L87 Difference]: Start difference. First operand 52 states and 94 transitions. Second operand 4 states. [2020-12-23 13:45:20,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:45:20,459 INFO L93 Difference]: Finished difference Result 48 states and 73 transitions. [2020-12-23 13:45:20,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 13:45:20,460 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-12-23 13:45:20,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:45:20,461 INFO L225 Difference]: With dead ends: 48 [2020-12-23 13:45:20,461 INFO L226 Difference]: Without dead ends: 35 [2020-12-23 13:45:20,462 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 13:45:20,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-12-23 13:45:20,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-12-23 13:45:20,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-12-23 13:45:20,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 49 transitions. [2020-12-23 13:45:20,466 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 49 transitions. Word has length 9 [2020-12-23 13:45:20,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:45:20,466 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 49 transitions. [2020-12-23 13:45:20,466 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 13:45:20,466 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 49 transitions. [2020-12-23 13:45:20,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-23 13:45:20,467 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:45:20,467 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:45:20,467 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-23 13:45:20,468 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:45:20,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:45:20,468 INFO L82 PathProgramCache]: Analyzing trace with hash 515064884, now seen corresponding path program 1 times [2020-12-23 13:45:20,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:45:20,469 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975162826] [2020-12-23 13:45:20,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:45:20,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:45:20,525 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 13:45:20,525 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975162826] [2020-12-23 13:45:20,526 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:45:20,526 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 13:45:20,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113860969] [2020-12-23 13:45:20,526 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 13:45:20,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:45:20,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 13:45:20,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 13:45:20,528 INFO L87 Difference]: Start difference. First operand 35 states and 49 transitions. Second operand 5 states. [2020-12-23 13:45:20,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:45:20,558 INFO L93 Difference]: Finished difference Result 25 states and 34 transitions. [2020-12-23 13:45:20,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 13:45:20,558 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-12-23 13:45:20,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:45:20,558 INFO L225 Difference]: With dead ends: 25 [2020-12-23 13:45:20,559 INFO L226 Difference]: Without dead ends: 0 [2020-12-23 13:45:20,559 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-23 13:45:20,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-23 13:45:20,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-23 13:45:20,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-23 13:45:20,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-23 13:45:20,560 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2020-12-23 13:45:20,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:45:20,560 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-23 13:45:20,560 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 13:45:20,560 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-23 13:45:20,560 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-23 13:45:20,561 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-23 13:45:20,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 01:45:20 BasicIcfg [2020-12-23 13:45:20,564 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-23 13:45:20,565 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-23 13:45:20,565 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-23 13:45:20,565 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-23 13:45:20,566 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:45:15" (3/4) ... [2020-12-23 13:45:20,588 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-23 13:45:20,598 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-12-23 13:45:20,598 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-12-23 13:45:20,603 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-12-23 13:45:20,603 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-23 13:45:20,604 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-23 13:45:20,604 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-23 13:45:20,646 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/pthread-wmm/safe029_tso.opt.i-witness.graphml [2020-12-23 13:45:20,646 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-23 13:45:20,648 INFO L168 Benchmark]: Toolchain (without parser) took 6139.84 ms. Allocated memory was 170.9 MB in the beginning and 205.5 MB in the end (delta: 34.6 MB). Free memory was 144.2 MB in the beginning and 183.5 MB in the end (delta: -39.3 MB). Peak memory consumption was 109.7 MB. Max. memory is 8.0 GB. [2020-12-23 13:45:20,649 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 170.9 MB. Free memory is still 142.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 13:45:20,649 INFO L168 Benchmark]: CACSL2BoogieTranslator took 760.08 ms. Allocated memory is still 170.9 MB. Free memory was 144.0 MB in the beginning and 150.5 MB in the end (delta: -6.5 MB). Peak memory consumption was 31.0 MB. Max. memory is 8.0 GB. [2020-12-23 13:45:20,650 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.63 ms. Allocated memory is still 170.9 MB. Free memory was 149.9 MB in the beginning and 148.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 13:45:20,651 INFO L168 Benchmark]: Boogie Preprocessor took 28.34 ms. Allocated memory is still 170.9 MB. Free memory was 148.4 MB in the beginning and 146.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 13:45:20,652 INFO L168 Benchmark]: RCFGBuilder took 599.73 ms. Allocated memory is still 170.9 MB. Free memory was 146.8 MB in the beginning and 127.4 MB in the end (delta: 19.4 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-12-23 13:45:20,653 INFO L168 Benchmark]: TraceAbstraction took 4609.24 ms. Allocated memory was 170.9 MB in the beginning and 205.5 MB in the end (delta: 34.6 MB). Free memory was 126.9 MB in the beginning and 70.3 MB in the end (delta: 56.6 MB). Peak memory consumption was 92.3 MB. Max. memory is 8.0 GB. [2020-12-23 13:45:20,653 INFO L168 Benchmark]: Witness Printer took 81.59 ms. Allocated memory is still 205.5 MB. Free memory was 70.3 MB in the beginning and 183.5 MB in the end (delta: -113.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 13:45:20,658 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 170.9 MB. Free memory is still 142.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 760.08 ms. Allocated memory is still 170.9 MB. Free memory was 144.0 MB in the beginning and 150.5 MB in the end (delta: -6.5 MB). Peak memory consumption was 31.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 50.63 ms. Allocated memory is still 170.9 MB. Free memory was 149.9 MB in the beginning and 148.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 28.34 ms. Allocated memory is still 170.9 MB. Free memory was 148.4 MB in the beginning and 146.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 599.73 ms. Allocated memory is still 170.9 MB. Free memory was 146.8 MB in the beginning and 127.4 MB in the end (delta: 19.4 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4609.24 ms. Allocated memory was 170.9 MB in the beginning and 205.5 MB in the end (delta: 34.6 MB). Free memory was 126.9 MB in the beginning and 70.3 MB in the end (delta: 56.6 MB). Peak memory consumption was 92.3 MB. Max. memory is 8.0 GB. * Witness Printer took 81.59 ms. Allocated memory is still 205.5 MB. Free memory was 70.3 MB in the beginning and 183.5 MB in the end (delta: -113.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 455 VarBasedMoverChecksPositive, 25 VarBasedMoverChecksNegative, 3 SemBasedMoverChecksPositive, 22 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 45 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.2s, 64 PlacesBefore, 23 PlacesAfterwards, 59 TransitionsBefore, 17 TransitionsAfterwards, 696 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 53 TotalNumberOfCompositions, 1340 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, 58 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.4s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.2s, HoareTripleCheckerStatistics: 98 SDtfs, 59 SDslu, 109 SDs, 0 SdLazy, 53 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 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, 16 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 1391 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...