/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-178dd20 [2021-01-06 23:38:05,633 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 23:38:05,635 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 23:38:05,692 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 23:38:05,693 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 23:38:05,697 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 23:38:05,701 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 23:38:05,707 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 23:38:05,711 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 23:38:05,717 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 23:38:05,721 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 23:38:05,723 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 23:38:05,723 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 23:38:05,727 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 23:38:05,729 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 23:38:05,731 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 23:38:05,733 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 23:38:05,736 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 23:38:05,744 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 23:38:05,759 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 23:38:05,761 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 23:38:05,763 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 23:38:05,766 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 23:38:05,767 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 23:38:05,788 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-06 23:38:05,789 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-06 23:38:05,789 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-06 23:38:05,790 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-06 23:38:05,791 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-06 23:38:05,794 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-06 23:38:05,794 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-06 23:38:05,795 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-06 23:38:05,798 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-06 23:38:05,800 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-06 23:38:05,806 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-06 23:38:05,806 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-06 23:38:05,807 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-06 23:38:05,807 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-06 23:38:05,807 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 23:38:05,813 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 23:38:05,814 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 23:38:05,815 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-01-06 23:38:05,863 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 23:38:05,864 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 23:38:05,868 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 23:38:05,869 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 23:38:05,869 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 23:38:05,869 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 23:38:05,869 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 23:38:05,870 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 23:38:05,870 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 23:38:05,870 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 23:38:05,871 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 23:38:05,871 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 23:38:05,871 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 23:38:05,872 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 23:38:05,872 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 23:38:05,872 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 23:38:05,872 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 23:38:05,872 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 23:38:05,873 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 23:38:05,873 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 23:38:05,873 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 23:38:05,873 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 23:38:05,873 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 23:38:05,874 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 23:38:05,874 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 23:38:05,874 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 23:38:06,285 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 23:38:06,315 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 23:38:06,318 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 23:38:06,319 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 23:38:06,320 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 23:38:06,321 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe029_tso.opt.i [2021-01-06 23:38:06,398 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/de7098510/fbb9eaff78bd4c27b904f5041458b84c/FLAG323177704 [2021-01-06 23:38:07,057 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 23:38:07,058 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe029_tso.opt.i [2021-01-06 23:38:07,115 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/de7098510/fbb9eaff78bd4c27b904f5041458b84c/FLAG323177704 [2021-01-06 23:38:07,348 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/de7098510/fbb9eaff78bd4c27b904f5041458b84c [2021-01-06 23:38:07,351 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 23:38:07,354 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 23:38:07,355 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 23:38:07,355 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 23:38:07,365 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 23:38:07,366 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 11:38:07" (1/1) ... [2021-01-06 23:38:07,369 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@237c2f17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:38:07, skipping insertion in model container [2021-01-06 23:38:07,369 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 11:38:07" (1/1) ... [2021-01-06 23:38:07,380 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 23:38:07,437 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-06 23:38:07,620 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$tmp_guard1~0,GLOBAL] [2021-01-06 23:38:07,859 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 23:38:07,871 INFO L203 MainTranslator]: Completed pre-run [2021-01-06 23:38:07,889 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe029_tso.opt.i[949,962] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard1~0,GLOBAL] [2021-01-06 23:38:07,937 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 23:38:08,111 INFO L208 MainTranslator]: Completed translation [2021-01-06 23:38:08,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:38:08 WrapperNode [2021-01-06 23:38:08,112 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 23:38:08,115 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 23:38:08,116 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 23:38:08,119 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 23:38:08,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:38:08" (1/1) ... [2021-01-06 23:38:08,189 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:38:08" (1/1) ... [2021-01-06 23:38:08,222 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 23:38:08,225 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 23:38:08,225 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 23:38:08,226 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 23:38:08,235 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:38:08" (1/1) ... [2021-01-06 23:38:08,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:38:08" (1/1) ... [2021-01-06 23:38:08,251 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:38:08" (1/1) ... [2021-01-06 23:38:08,252 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:38:08" (1/1) ... [2021-01-06 23:38:08,270 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:38:08" (1/1) ... [2021-01-06 23:38:08,272 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:38:08" (1/1) ... [2021-01-06 23:38:08,278 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:38:08" (1/1) ... [2021-01-06 23:38:08,286 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 23:38:08,287 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 23:38:08,287 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 23:38:08,287 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 23:38:08,288 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:38:08" (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 [2021-01-06 23:38:08,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-06 23:38:08,395 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-06 23:38:08,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 23:38:08,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-06 23:38:08,395 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-06 23:38:08,395 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-06 23:38:08,395 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-06 23:38:08,396 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-06 23:38:08,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 23:38:08,396 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-06 23:38:08,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 23:38:08,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 23:38:08,398 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-06 23:38:08,808 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 23:38:08,808 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-01-06 23:38:08,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:38:08 BoogieIcfgContainer [2021-01-06 23:38:08,811 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 23:38:08,813 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 23:38:08,813 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 23:38:08,817 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 23:38:08,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 11:38:07" (1/3) ... [2021-01-06 23:38:08,819 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64f50b28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 11:38:08, skipping insertion in model container [2021-01-06 23:38:08,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:38:08" (2/3) ... [2021-01-06 23:38:08,819 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64f50b28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 11:38:08, skipping insertion in model container [2021-01-06 23:38:08,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:38:08" (3/3) ... [2021-01-06 23:38:08,821 INFO L111 eAbstractionObserver]: Analyzing ICFG safe029_tso.opt.i [2021-01-06 23:38:08,829 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-06 23:38:08,829 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 23:38:08,834 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-06 23:38:08,836 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-06 23:38:08,872 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:08,873 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:08,873 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:08,873 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:08,874 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:08,874 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:08,874 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:08,874 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:08,875 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:08,875 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:08,875 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:08,875 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:08,876 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:08,876 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:08,876 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:08,877 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:08,877 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:08,877 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:08,877 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:08,877 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:08,878 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:08,878 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:08,878 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:08,879 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:08,881 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:08,882 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:08,882 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:08,882 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:08,888 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:08,889 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:08,889 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:08,889 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:08,892 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-06 23:38:08,917 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-01-06 23:38:08,943 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 23:38:08,943 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 23:38:08,943 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 23:38:08,943 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 23:38:08,943 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 23:38:08,944 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 23:38:08,944 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 23:38:08,944 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 23:38:08,958 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-01-06 23:38:08,961 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 59 transitions, 128 flow [2021-01-06 23:38:08,965 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 59 transitions, 128 flow [2021-01-06 23:38:08,967 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 64 places, 59 transitions, 128 flow [2021-01-06 23:38:09,010 INFO L129 PetriNetUnfolder]: 2/57 cut-off events. [2021-01-06 23:38:09,010 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-01-06 23:38:09,015 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. [2021-01-06 23:38:09,017 INFO L116 LiptonReduction]: Number of co-enabled transitions 696 [2021-01-06 23:38:11,591 WARN L197 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-01-06 23:38:11,806 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-01-06 23:38:12,641 WARN L197 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2021-01-06 23:38:12,788 WARN L197 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-01-06 23:38:13,135 WARN L197 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2021-01-06 23:38:13,265 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-01-06 23:38:13,393 INFO L131 LiptonReduction]: Checked pairs total: 1340 [2021-01-06 23:38:13,394 INFO L133 LiptonReduction]: Total number of compositions: 53 [2021-01-06 23:38:13,401 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 23 places, 17 transitions, 44 flow [2021-01-06 23:38:13,416 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 90 states. [2021-01-06 23:38:13,418 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states. [2021-01-06 23:38:13,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-01-06 23:38:13,425 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:38:13,426 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-01-06 23:38:13,427 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:38:13,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:38:13,434 INFO L82 PathProgramCache]: Analyzing trace with hash -2070123945, now seen corresponding path program 1 times [2021-01-06 23:38:13,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:38:13,446 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316533618] [2021-01-06 23:38:13,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:38:13,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:38:13,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:38:13,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316533618] [2021-01-06 23:38:13,671 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:38:13,671 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 23:38:13,672 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538015652] [2021-01-06 23:38:13,676 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-01-06 23:38:13,677 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:38:13,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-01-06 23:38:13,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-06 23:38:13,697 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 2 states. [2021-01-06 23:38:13,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:38:13,717 INFO L93 Difference]: Finished difference Result 90 states and 200 transitions. [2021-01-06 23:38:13,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-01-06 23:38:13,718 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2021-01-06 23:38:13,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:38:13,731 INFO L225 Difference]: With dead ends: 90 [2021-01-06 23:38:13,732 INFO L226 Difference]: Without dead ends: 74 [2021-01-06 23:38:13,733 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 [2021-01-06 23:38:13,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-01-06 23:38:13,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2021-01-06 23:38:13,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2021-01-06 23:38:13,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 160 transitions. [2021-01-06 23:38:13,805 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 160 transitions. Word has length 6 [2021-01-06 23:38:13,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:38:13,805 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 160 transitions. [2021-01-06 23:38:13,805 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-01-06 23:38:13,807 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 160 transitions. [2021-01-06 23:38:13,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-01-06 23:38:13,808 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:38:13,809 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:38:13,809 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 23:38:13,809 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:38:13,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:38:13,815 INFO L82 PathProgramCache]: Analyzing trace with hash 250664680, now seen corresponding path program 1 times [2021-01-06 23:38:13,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:38:13,820 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242124785] [2021-01-06 23:38:13,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:38:13,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:38:14,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:38:14,104 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242124785] [2021-01-06 23:38:14,104 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:38:14,105 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 23:38:14,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629249453] [2021-01-06 23:38:14,107 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 23:38:14,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:38:14,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 23:38:14,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 23:38:14,113 INFO L87 Difference]: Start difference. First operand 74 states and 160 transitions. Second operand 4 states. [2021-01-06 23:38:14,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:38:14,226 INFO L93 Difference]: Finished difference Result 108 states and 221 transitions. [2021-01-06 23:38:14,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 23:38:14,228 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2021-01-06 23:38:14,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:38:14,235 INFO L225 Difference]: With dead ends: 108 [2021-01-06 23:38:14,236 INFO L226 Difference]: Without dead ends: 72 [2021-01-06 23:38:14,238 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 [2021-01-06 23:38:14,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-01-06 23:38:14,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 64. [2021-01-06 23:38:14,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2021-01-06 23:38:14,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 122 transitions. [2021-01-06 23:38:14,265 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 122 transitions. Word has length 7 [2021-01-06 23:38:14,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:38:14,265 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 122 transitions. [2021-01-06 23:38:14,266 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 23:38:14,266 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 122 transitions. [2021-01-06 23:38:14,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-01-06 23:38:14,268 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:38:14,268 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:38:14,269 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-06 23:38:14,271 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:38:14,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:38:14,272 INFO L82 PathProgramCache]: Analyzing trace with hash -1104300190, now seen corresponding path program 1 times [2021-01-06 23:38:14,272 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:38:14,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647737046] [2021-01-06 23:38:14,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:38:14,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:38:14,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:38:14,415 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647737046] [2021-01-06 23:38:14,416 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:38:14,416 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 23:38:14,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579657124] [2021-01-06 23:38:14,417 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:38:14,417 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:38:14,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:38:14,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:38:14,418 INFO L87 Difference]: Start difference. First operand 64 states and 122 transitions. Second operand 5 states. [2021-01-06 23:38:14,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:38:14,511 INFO L93 Difference]: Finished difference Result 80 states and 145 transitions. [2021-01-06 23:38:14,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-06 23:38:14,512 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2021-01-06 23:38:14,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:38:14,514 INFO L225 Difference]: With dead ends: 80 [2021-01-06 23:38:14,514 INFO L226 Difference]: Without dead ends: 66 [2021-01-06 23:38:14,514 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 [2021-01-06 23:38:14,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-01-06 23:38:14,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 58. [2021-01-06 23:38:14,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2021-01-06 23:38:14,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 108 transitions. [2021-01-06 23:38:14,521 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 108 transitions. Word has length 8 [2021-01-06 23:38:14,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:38:14,522 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 108 transitions. [2021-01-06 23:38:14,522 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:38:14,522 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 108 transitions. [2021-01-06 23:38:14,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-01-06 23:38:14,523 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:38:14,523 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:38:14,523 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-06 23:38:14,524 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:38:14,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:38:14,524 INFO L82 PathProgramCache]: Analyzing trace with hash -820302587, now seen corresponding path program 1 times [2021-01-06 23:38:14,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:38:14,525 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638631322] [2021-01-06 23:38:14,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:38:14,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:38:14,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:38:14,590 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638631322] [2021-01-06 23:38:14,590 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:38:14,591 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 23:38:14,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423136350] [2021-01-06 23:38:14,591 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 23:38:14,592 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:38:14,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 23:38:14,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 23:38:14,593 INFO L87 Difference]: Start difference. First operand 58 states and 108 transitions. Second operand 4 states. [2021-01-06 23:38:14,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:38:14,625 INFO L93 Difference]: Finished difference Result 64 states and 112 transitions. [2021-01-06 23:38:14,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 23:38:14,626 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2021-01-06 23:38:14,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:38:14,627 INFO L225 Difference]: With dead ends: 64 [2021-01-06 23:38:14,627 INFO L226 Difference]: Without dead ends: 52 [2021-01-06 23:38:14,628 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 [2021-01-06 23:38:14,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-01-06 23:38:14,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-01-06 23:38:14,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2021-01-06 23:38:14,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 94 transitions. [2021-01-06 23:38:14,633 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 94 transitions. Word has length 8 [2021-01-06 23:38:14,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:38:14,634 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 94 transitions. [2021-01-06 23:38:14,634 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 23:38:14,634 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 94 transitions. [2021-01-06 23:38:14,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-01-06 23:38:14,635 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:38:14,635 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:38:14,635 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-06 23:38:14,636 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:38:14,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:38:14,636 INFO L82 PathProgramCache]: Analyzing trace with hash 125459403, now seen corresponding path program 1 times [2021-01-06 23:38:14,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:38:14,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109370464] [2021-01-06 23:38:14,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:38:14,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:38:14,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:38:14,697 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109370464] [2021-01-06 23:38:14,697 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:38:14,697 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 23:38:14,698 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291818007] [2021-01-06 23:38:14,698 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 23:38:14,698 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:38:14,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 23:38:14,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 23:38:14,699 INFO L87 Difference]: Start difference. First operand 52 states and 94 transitions. Second operand 4 states. [2021-01-06 23:38:14,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:38:14,740 INFO L93 Difference]: Finished difference Result 48 states and 73 transitions. [2021-01-06 23:38:14,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 23:38:14,741 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2021-01-06 23:38:14,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:38:14,742 INFO L225 Difference]: With dead ends: 48 [2021-01-06 23:38:14,742 INFO L226 Difference]: Without dead ends: 35 [2021-01-06 23:38:14,742 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 [2021-01-06 23:38:14,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-01-06 23:38:14,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-01-06 23:38:14,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2021-01-06 23:38:14,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 49 transitions. [2021-01-06 23:38:14,746 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 49 transitions. Word has length 9 [2021-01-06 23:38:14,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:38:14,747 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 49 transitions. [2021-01-06 23:38:14,747 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 23:38:14,747 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 49 transitions. [2021-01-06 23:38:14,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-01-06 23:38:14,748 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:38:14,748 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:38:14,748 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-06 23:38:14,748 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:38:14,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:38:14,749 INFO L82 PathProgramCache]: Analyzing trace with hash 515064884, now seen corresponding path program 1 times [2021-01-06 23:38:14,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:38:14,749 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068561591] [2021-01-06 23:38:14,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:38:14,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:38:14,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:38:14,861 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068561591] [2021-01-06 23:38:14,861 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:38:14,861 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 23:38:14,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519772670] [2021-01-06 23:38:14,863 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:38:14,863 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:38:14,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:38:14,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:38:14,865 INFO L87 Difference]: Start difference. First operand 35 states and 49 transitions. Second operand 5 states. [2021-01-06 23:38:14,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:38:14,904 INFO L93 Difference]: Finished difference Result 25 states and 34 transitions. [2021-01-06 23:38:14,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 23:38:14,904 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2021-01-06 23:38:14,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:38:14,905 INFO L225 Difference]: With dead ends: 25 [2021-01-06 23:38:14,905 INFO L226 Difference]: Without dead ends: 0 [2021-01-06 23:38:14,905 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 [2021-01-06 23:38:14,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-01-06 23:38:14,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-01-06 23:38:14,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-01-06 23:38:14,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-01-06 23:38:14,906 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2021-01-06 23:38:14,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:38:14,906 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-01-06 23:38:14,906 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:38:14,907 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-01-06 23:38:14,907 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-06 23:38:14,907 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-06 23:38:14,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.01 11:38:14 BasicIcfg [2021-01-06 23:38:14,912 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-06 23:38:14,913 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-01-06 23:38:14,913 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-01-06 23:38:14,914 INFO L275 PluginConnector]: Witness Printer initialized [2021-01-06 23:38:14,914 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:38:08" (3/4) ... [2021-01-06 23:38:14,919 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-01-06 23:38:14,928 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2021-01-06 23:38:14,929 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2021-01-06 23:38:14,937 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-01-06 23:38:14,937 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-01-06 23:38:14,938 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-01-06 23:38:14,938 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-01-06 23:38:15,017 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/pthread-wmm/safe029_tso.opt.i-witness.graphml [2021-01-06 23:38:15,017 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-01-06 23:38:15,019 INFO L168 Benchmark]: Toolchain (without parser) took 7665.40 ms. Allocated memory was 177.2 MB in the beginning and 231.7 MB in the end (delta: 54.5 MB). Free memory was 159.5 MB in the beginning and 92.9 MB in the end (delta: 66.6 MB). Peak memory consumption was 120.3 MB. Max. memory is 8.0 GB. [2021-01-06 23:38:15,020 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 177.2 MB. Free memory is still 149.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 23:38:15,026 INFO L168 Benchmark]: CACSL2BoogieTranslator took 758.72 ms. Allocated memory is still 177.2 MB. Free memory was 159.2 MB in the beginning and 157.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 34.1 MB. Max. memory is 8.0 GB. [2021-01-06 23:38:15,026 INFO L168 Benchmark]: Boogie Procedure Inliner took 108.29 ms. Allocated memory is still 177.2 MB. Free memory was 157.4 MB in the beginning and 155.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-01-06 23:38:15,027 INFO L168 Benchmark]: Boogie Preprocessor took 61.44 ms. Allocated memory is still 177.2 MB. Free memory was 155.6 MB in the beginning and 154.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-01-06 23:38:15,028 INFO L168 Benchmark]: RCFGBuilder took 524.59 ms. Allocated memory is still 177.2 MB. Free memory was 154.0 MB in the beginning and 135.1 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 8.0 GB. [2021-01-06 23:38:15,029 INFO L168 Benchmark]: TraceAbstraction took 6099.24 ms. Allocated memory was 177.2 MB in the beginning and 231.7 MB in the end (delta: 54.5 MB). Free memory was 134.6 MB in the beginning and 95.5 MB in the end (delta: 39.1 MB). Peak memory consumption was 94.6 MB. Max. memory is 8.0 GB. [2021-01-06 23:38:15,033 INFO L168 Benchmark]: Witness Printer took 104.26 ms. Allocated memory is still 231.7 MB. Free memory was 95.5 MB in the beginning and 92.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-01-06 23:38:15,035 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 177.2 MB. Free memory is still 149.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 758.72 ms. Allocated memory is still 177.2 MB. Free memory was 159.2 MB in the beginning and 157.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 34.1 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 108.29 ms. Allocated memory is still 177.2 MB. Free memory was 157.4 MB in the beginning and 155.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 61.44 ms. Allocated memory is still 177.2 MB. Free memory was 155.6 MB in the beginning and 154.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 524.59 ms. Allocated memory is still 177.2 MB. Free memory was 154.0 MB in the beginning and 135.1 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6099.24 ms. Allocated memory was 177.2 MB in the beginning and 231.7 MB in the end (delta: 54.5 MB). Free memory was 134.6 MB in the beginning and 95.5 MB in the end (delta: 39.1 MB). Peak memory consumption was 94.6 MB. Max. memory is 8.0 GB. * Witness Printer took 104.26 ms. Allocated memory is still 231.7 MB. Free memory was 95.5 MB in the beginning and 92.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 455 VarBasedMoverChecksPositive, 25 VarBasedMoverChecksNegative, 3 SemBasedMoverChecksPositive, 22 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 45 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.4s, 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: 5.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.4s, HoareTripleCheckerStatistics: 98 SDtfs, 59 SDslu, 109 SDs, 0 SdLazy, 53 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s 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, 0.2s SatisfiabilityAnalysisTime, 0.4s 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...