/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/safe035_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 23:39:28,633 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 23:39:28,637 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 23:39:28,697 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 23:39:28,698 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 23:39:28,702 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 23:39:28,708 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 23:39:28,715 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 23:39:28,719 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 23:39:28,725 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 23:39:28,729 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 23:39:28,731 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 23:39:28,731 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 23:39:28,735 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 23:39:28,737 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 23:39:28,739 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 23:39:28,740 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 23:39:28,744 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 23:39:28,751 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 23:39:28,759 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 23:39:28,761 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 23:39:28,766 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 23:39:28,767 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 23:39:28,770 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 23:39:28,784 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-06 23:39:28,788 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-06 23:39:28,788 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-06 23:39:28,789 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-06 23:39:28,791 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-06 23:39:28,792 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-06 23:39:28,792 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-06 23:39:28,793 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-06 23:39:28,795 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-06 23:39:28,796 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-06 23:39:28,797 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-06 23:39:28,798 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-06 23:39:28,798 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-06 23:39:28,805 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-06 23:39:28,805 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 23:39:28,807 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 23:39:28,808 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 23:39:28,809 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 23:39:28,856 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 23:39:28,856 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 23:39:28,860 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 23:39:28,861 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 23:39:28,861 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 23:39:28,861 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 23:39:28,861 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 23:39:28,861 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 23:39:28,862 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 23:39:28,862 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 23:39:28,863 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 23:39:28,863 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 23:39:28,864 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 23:39:28,864 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 23:39:28,864 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 23:39:28,864 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 23:39:28,864 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 23:39:28,865 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 23:39:28,865 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 23:39:28,865 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 23:39:28,865 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 23:39:28,865 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 23:39:28,866 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 23:39:28,866 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 23:39:28,866 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 23:39:28,866 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 23:39:29,270 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 23:39:29,305 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 23:39:29,309 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 23:39:29,311 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 23:39:29,312 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 23:39:29,313 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe035_tso.oepc.i [2021-01-06 23:39:29,399 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/85cf5703e/cef62758fc8a412c94fa7730d6a4b8a0/FLAG2d9ceb072 [2021-01-06 23:39:30,172 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 23:39:30,173 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe035_tso.oepc.i [2021-01-06 23:39:30,190 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/85cf5703e/cef62758fc8a412c94fa7730d6a4b8a0/FLAG2d9ceb072 [2021-01-06 23:39:30,207 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/85cf5703e/cef62758fc8a412c94fa7730d6a4b8a0 [2021-01-06 23:39:30,210 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 23:39:30,212 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 23:39:30,214 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 23:39:30,215 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 23:39:30,222 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 23:39:30,224 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 11:39:30" (1/1) ... [2021-01-06 23:39:30,225 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f484af6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:30, skipping insertion in model container [2021-01-06 23:39:30,226 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 11:39:30" (1/1) ... [2021-01-06 23:39:30,234 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 23:39:30,306 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-06 23:39:30,493 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/safe035_tso.oepc.i[950,963] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p0_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p1_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p2_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard1~0,GLOBAL] [2021-01-06 23:39:30,814 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 23:39:30,830 INFO L203 MainTranslator]: Completed pre-run [2021-01-06 23:39:30,851 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe035_tso.oepc.i[950,963] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p0_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p1_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p2_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard1~0,GLOBAL] [2021-01-06 23:39:30,913 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 23:39:31,074 INFO L208 MainTranslator]: Completed translation [2021-01-06 23:39:31,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:31 WrapperNode [2021-01-06 23:39:31,075 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 23:39:31,078 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 23:39:31,078 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 23:39:31,078 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 23:39:31,103 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:31" (1/1) ... [2021-01-06 23:39:31,147 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:31" (1/1) ... [2021-01-06 23:39:31,185 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 23:39:31,189 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 23:39:31,190 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 23:39:31,190 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 23:39:31,203 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:31" (1/1) ... [2021-01-06 23:39:31,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:31" (1/1) ... [2021-01-06 23:39:31,206 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:31" (1/1) ... [2021-01-06 23:39:31,207 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:31" (1/1) ... [2021-01-06 23:39:31,213 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:31" (1/1) ... [2021-01-06 23:39:31,215 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:31" (1/1) ... [2021-01-06 23:39:31,218 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:31" (1/1) ... [2021-01-06 23:39:31,221 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 23:39:31,223 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 23:39:31,223 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 23:39:31,223 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 23:39:31,224 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:31" (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 23:39:31,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-06 23:39:31,334 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-06 23:39:31,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 23:39:31,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-06 23:39:31,335 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-06 23:39:31,335 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-06 23:39:31,335 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-06 23:39:31,335 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-06 23:39:31,336 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-01-06 23:39:31,336 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-01-06 23:39:31,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 23:39:31,336 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-06 23:39:31,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 23:39:31,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 23:39:31,338 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 23:39:31,950 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 23:39:31,950 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-01-06 23:39:31,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:39:31 BoogieIcfgContainer [2021-01-06 23:39:31,954 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 23:39:31,956 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 23:39:31,956 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 23:39:31,960 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 23:39:31,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 11:39:30" (1/3) ... [2021-01-06 23:39:31,964 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1006659 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 11:39:31, skipping insertion in model container [2021-01-06 23:39:31,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:31" (2/3) ... [2021-01-06 23:39:31,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1006659 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 11:39:31, skipping insertion in model container [2021-01-06 23:39:31,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:39:31" (3/3) ... [2021-01-06 23:39:31,968 INFO L111 eAbstractionObserver]: Analyzing ICFG safe035_tso.oepc.i [2021-01-06 23:39:31,977 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-06 23:39:31,977 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 23:39:31,983 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-06 23:39:31,984 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-06 23:39:32,042 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:32,042 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:32,042 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:32,043 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:32,043 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:32,043 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:32,043 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:32,043 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:32,044 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:32,044 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:32,044 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:32,045 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:32,046 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:32,046 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:32,046 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:32,047 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:32,047 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:32,047 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:32,047 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:32,048 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:32,048 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:32,048 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:32,048 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:32,049 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:32,051 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:32,051 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:32,051 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:32,052 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:32,054 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:32,054 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:32,054 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:32,054 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:32,055 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:32,055 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:32,055 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:32,055 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:32,059 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:32,061 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:32,065 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:32,065 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:32,071 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:32,071 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:32,072 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:32,072 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:32,081 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:32,082 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:32,082 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:32,082 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:32,086 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-06 23:39:32,108 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-01-06 23:39:32,147 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 23:39:32,148 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 23:39:32,148 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 23:39:32,148 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 23:39:32,148 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 23:39:32,148 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 23:39:32,148 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 23:39:32,149 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 23:39:32,167 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-01-06 23:39:32,169 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 75 transitions, 165 flow [2021-01-06 23:39:32,173 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 75 transitions, 165 flow [2021-01-06 23:39:32,175 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 75 transitions, 165 flow [2021-01-06 23:39:32,219 INFO L129 PetriNetUnfolder]: 2/72 cut-off events. [2021-01-06 23:39:32,219 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-01-06 23:39:32,223 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 72 events. 2/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-01-06 23:39:32,227 INFO L116 LiptonReduction]: Number of co-enabled transitions 1296 [2021-01-06 23:39:34,350 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-01-06 23:39:34,511 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-01-06 23:39:35,299 WARN L197 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-01-06 23:39:35,404 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-01-06 23:39:35,649 WARN L197 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-01-06 23:39:35,767 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-01-06 23:39:35,788 INFO L131 LiptonReduction]: Checked pairs total: 2511 [2021-01-06 23:39:35,788 INFO L133 LiptonReduction]: Total number of compositions: 63 [2021-01-06 23:39:35,796 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2021-01-06 23:39:35,844 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2021-01-06 23:39:35,847 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2021-01-06 23:39:35,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-01-06 23:39:35,856 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:39:35,857 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:39:35,857 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:39:35,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:39:35,866 INFO L82 PathProgramCache]: Analyzing trace with hash -1857977145, now seen corresponding path program 1 times [2021-01-06 23:39:35,877 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:39:35,878 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021098570] [2021-01-06 23:39:35,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:39:36,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:39:36,150 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 23:39:36,151 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021098570] [2021-01-06 23:39:36,152 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:39:36,152 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 23:39:36,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142536449] [2021-01-06 23:39:36,158 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-01-06 23:39:36,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:39:36,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-01-06 23:39:36,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-06 23:39:36,178 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2021-01-06 23:39:36,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:39:36,213 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2021-01-06 23:39:36,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-01-06 23:39:36,214 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2021-01-06 23:39:36,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:39:36,234 INFO L225 Difference]: With dead ends: 362 [2021-01-06 23:39:36,234 INFO L226 Difference]: Without dead ends: 298 [2021-01-06 23:39:36,235 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 23:39:36,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2021-01-06 23:39:36,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2021-01-06 23:39:36,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2021-01-06 23:39:36,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2021-01-06 23:39:36,313 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2021-01-06 23:39:36,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:39:36,314 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2021-01-06 23:39:36,314 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-01-06 23:39:36,314 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2021-01-06 23:39:36,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-01-06 23:39:36,316 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:39:36,316 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:39:36,316 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 23:39:36,317 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:39:36,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:39:36,317 INFO L82 PathProgramCache]: Analyzing trace with hash -1762722497, now seen corresponding path program 1 times [2021-01-06 23:39:36,318 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:39:36,318 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399004280] [2021-01-06 23:39:36,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:39:36,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:39:36,548 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 23:39:36,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399004280] [2021-01-06 23:39:36,549 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:39:36,549 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 23:39:36,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177867825] [2021-01-06 23:39:36,551 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 23:39:36,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:39:36,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 23:39:36,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 23:39:36,553 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2021-01-06 23:39:36,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:39:36,641 INFO L93 Difference]: Finished difference Result 552 states and 1504 transitions. [2021-01-06 23:39:36,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 23:39:36,642 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2021-01-06 23:39:36,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:39:36,650 INFO L225 Difference]: With dead ends: 552 [2021-01-06 23:39:36,650 INFO L226 Difference]: Without dead ends: 382 [2021-01-06 23:39:36,652 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 23:39:36,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2021-01-06 23:39:36,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 298. [2021-01-06 23:39:36,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2021-01-06 23:39:36,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 792 transitions. [2021-01-06 23:39:36,717 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 792 transitions. Word has length 9 [2021-01-06 23:39:36,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:39:36,717 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 792 transitions. [2021-01-06 23:39:36,717 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 23:39:36,717 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 792 transitions. [2021-01-06 23:39:36,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-01-06 23:39:36,721 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:39:36,721 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:39:36,721 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-06 23:39:36,721 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:39:36,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:39:36,722 INFO L82 PathProgramCache]: Analyzing trace with hash 1189149087, now seen corresponding path program 1 times [2021-01-06 23:39:36,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:39:36,722 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656755675] [2021-01-06 23:39:36,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:39:36,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:39:36,863 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 23:39:36,868 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656755675] [2021-01-06 23:39:36,869 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:39:36,869 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 23:39:36,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470898007] [2021-01-06 23:39:36,870 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:39:36,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:39:36,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:39:36,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:39:36,878 INFO L87 Difference]: Start difference. First operand 298 states and 792 transitions. Second operand 5 states. [2021-01-06 23:39:36,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:39:36,949 INFO L93 Difference]: Finished difference Result 338 states and 836 transitions. [2021-01-06 23:39:36,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-06 23:39:36,950 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2021-01-06 23:39:36,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:39:36,953 INFO L225 Difference]: With dead ends: 338 [2021-01-06 23:39:36,953 INFO L226 Difference]: Without dead ends: 222 [2021-01-06 23:39:36,954 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 23:39:36,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2021-01-06 23:39:36,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 182. [2021-01-06 23:39:36,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2021-01-06 23:39:36,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 468 transitions. [2021-01-06 23:39:36,966 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 468 transitions. Word has length 10 [2021-01-06 23:39:36,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:39:36,967 INFO L481 AbstractCegarLoop]: Abstraction has 182 states and 468 transitions. [2021-01-06 23:39:36,967 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:39:36,967 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 468 transitions. [2021-01-06 23:39:36,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-01-06 23:39:36,975 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:39:36,975 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:39:36,975 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-06 23:39:36,976 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:39:36,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:39:36,978 INFO L82 PathProgramCache]: Analyzing trace with hash 681758540, now seen corresponding path program 1 times [2021-01-06 23:39:36,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:39:36,979 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440612758] [2021-01-06 23:39:36,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:39:37,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:39:37,092 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 23:39:37,092 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440612758] [2021-01-06 23:39:37,092 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:39:37,093 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 23:39:37,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242414377] [2021-01-06 23:39:37,094 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 23:39:37,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:39:37,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 23:39:37,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 23:39:37,096 INFO L87 Difference]: Start difference. First operand 182 states and 468 transitions. Second operand 3 states. [2021-01-06 23:39:37,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:39:37,112 INFO L93 Difference]: Finished difference Result 146 states and 331 transitions. [2021-01-06 23:39:37,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 23:39:37,113 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2021-01-06 23:39:37,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:39:37,114 INFO L225 Difference]: With dead ends: 146 [2021-01-06 23:39:37,114 INFO L226 Difference]: Without dead ends: 146 [2021-01-06 23:39:37,115 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 23:39:37,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-01-06 23:39:37,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2021-01-06 23:39:37,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2021-01-06 23:39:37,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 331 transitions. [2021-01-06 23:39:37,123 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 331 transitions. Word has length 12 [2021-01-06 23:39:37,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:39:37,124 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 331 transitions. [2021-01-06 23:39:37,124 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 23:39:37,124 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 331 transitions. [2021-01-06 23:39:37,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-01-06 23:39:37,128 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:39:37,130 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:39:37,133 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-06 23:39:37,133 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:39:37,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:39:37,134 INFO L82 PathProgramCache]: Analyzing trace with hash -2034044923, now seen corresponding path program 1 times [2021-01-06 23:39:37,139 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:39:37,139 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608708877] [2021-01-06 23:39:37,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:39:37,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:39:37,239 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 23:39:37,239 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608708877] [2021-01-06 23:39:37,240 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:39:37,240 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 23:39:37,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192948803] [2021-01-06 23:39:37,241 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 23:39:37,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:39:37,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 23:39:37,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-01-06 23:39:37,242 INFO L87 Difference]: Start difference. First operand 146 states and 331 transitions. Second operand 4 states. [2021-01-06 23:39:37,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:39:37,261 INFO L93 Difference]: Finished difference Result 101 states and 200 transitions. [2021-01-06 23:39:37,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 23:39:37,262 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2021-01-06 23:39:37,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:39:37,263 INFO L225 Difference]: With dead ends: 101 [2021-01-06 23:39:37,263 INFO L226 Difference]: Without dead ends: 101 [2021-01-06 23:39:37,263 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-01-06 23:39:37,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-01-06 23:39:37,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 97. [2021-01-06 23:39:37,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2021-01-06 23:39:37,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 190 transitions. [2021-01-06 23:39:37,273 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 190 transitions. Word has length 13 [2021-01-06 23:39:37,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:39:37,273 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 190 transitions. [2021-01-06 23:39:37,274 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 23:39:37,274 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 190 transitions. [2021-01-06 23:39:37,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-01-06 23:39:37,274 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:39:37,275 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:39:37,275 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-06 23:39:37,275 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:39:37,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:39:37,276 INFO L82 PathProgramCache]: Analyzing trace with hash -666358640, now seen corresponding path program 1 times [2021-01-06 23:39:37,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:39:37,276 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158559107] [2021-01-06 23:39:37,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:39:37,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:39:37,387 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 23:39:37,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158559107] [2021-01-06 23:39:37,388 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:39:37,388 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 23:39:37,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074191821] [2021-01-06 23:39:37,389 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:39:37,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:39:37,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:39:37,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:39:37,391 INFO L87 Difference]: Start difference. First operand 97 states and 190 transitions. Second operand 5 states. [2021-01-06 23:39:37,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:39:37,454 INFO L93 Difference]: Finished difference Result 181 states and 338 transitions. [2021-01-06 23:39:37,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 23:39:37,455 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2021-01-06 23:39:37,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:39:37,457 INFO L225 Difference]: With dead ends: 181 [2021-01-06 23:39:37,457 INFO L226 Difference]: Without dead ends: 140 [2021-01-06 23:39:37,458 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-01-06 23:39:37,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-01-06 23:39:37,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 97. [2021-01-06 23:39:37,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2021-01-06 23:39:37,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 186 transitions. [2021-01-06 23:39:37,463 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 186 transitions. Word has length 15 [2021-01-06 23:39:37,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:39:37,463 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 186 transitions. [2021-01-06 23:39:37,463 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:39:37,463 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 186 transitions. [2021-01-06 23:39:37,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-01-06 23:39:37,465 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:39:37,465 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:39:37,465 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-06 23:39:37,465 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:39:37,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:39:37,466 INFO L82 PathProgramCache]: Analyzing trace with hash -574188510, now seen corresponding path program 2 times [2021-01-06 23:39:37,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:39:37,466 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278978154] [2021-01-06 23:39:37,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:39:37,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:39:37,556 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 23:39:37,558 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278978154] [2021-01-06 23:39:37,594 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:39:37,594 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 23:39:37,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606931311] [2021-01-06 23:39:37,596 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:39:37,597 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:39:37,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:39:37,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:39:37,598 INFO L87 Difference]: Start difference. First operand 97 states and 186 transitions. Second operand 5 states. [2021-01-06 23:39:37,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:39:37,634 INFO L93 Difference]: Finished difference Result 77 states and 147 transitions. [2021-01-06 23:39:37,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 23:39:37,634 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2021-01-06 23:39:37,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:39:37,635 INFO L225 Difference]: With dead ends: 77 [2021-01-06 23:39:37,635 INFO L226 Difference]: Without dead ends: 69 [2021-01-06 23:39:37,636 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:39:37,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-01-06 23:39:37,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 65. [2021-01-06 23:39:37,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2021-01-06 23:39:37,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 123 transitions. [2021-01-06 23:39:37,639 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 123 transitions. Word has length 15 [2021-01-06 23:39:37,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:39:37,640 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 123 transitions. [2021-01-06 23:39:37,640 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:39:37,640 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 123 transitions. [2021-01-06 23:39:37,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-01-06 23:39:37,641 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:39:37,641 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:39:37,641 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-06 23:39:37,641 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:39:37,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:39:37,642 INFO L82 PathProgramCache]: Analyzing trace with hash -681441042, now seen corresponding path program 1 times [2021-01-06 23:39:37,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:39:37,643 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859556255] [2021-01-06 23:39:37,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:39:37,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:39:37,706 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 23:39:37,707 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859556255] [2021-01-06 23:39:37,707 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:39:37,707 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 23:39:37,707 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282643198] [2021-01-06 23:39:37,708 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:39:37,708 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:39:37,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:39:37,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:39:37,709 INFO L87 Difference]: Start difference. First operand 65 states and 123 transitions. Second operand 5 states. [2021-01-06 23:39:37,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:39:37,780 INFO L93 Difference]: Finished difference Result 119 states and 209 transitions. [2021-01-06 23:39:37,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-01-06 23:39:37,781 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2021-01-06 23:39:37,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:39:37,781 INFO L225 Difference]: With dead ends: 119 [2021-01-06 23:39:37,782 INFO L226 Difference]: Without dead ends: 47 [2021-01-06 23:39:37,782 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-01-06 23:39:37,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-01-06 23:39:37,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2021-01-06 23:39:37,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2021-01-06 23:39:37,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 76 transitions. [2021-01-06 23:39:37,785 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 76 transitions. Word has length 18 [2021-01-06 23:39:37,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:39:37,785 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 76 transitions. [2021-01-06 23:39:37,785 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:39:37,785 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 76 transitions. [2021-01-06 23:39:37,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-01-06 23:39:37,786 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:39:37,786 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:39:37,786 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-06 23:39:37,787 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:39:37,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:39:37,787 INFO L82 PathProgramCache]: Analyzing trace with hash 1665896384, now seen corresponding path program 2 times [2021-01-06 23:39:37,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:39:37,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977023409] [2021-01-06 23:39:37,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:39:37,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:39:37,846 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 23:39:37,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977023409] [2021-01-06 23:39:37,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:39:37,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 23:39:37,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396993993] [2021-01-06 23:39:37,848 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:39:37,848 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:39:37,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:39:37,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:39:37,849 INFO L87 Difference]: Start difference. First operand 47 states and 76 transitions. Second operand 5 states. [2021-01-06 23:39:37,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:39:37,886 INFO L93 Difference]: Finished difference Result 61 states and 98 transitions. [2021-01-06 23:39:37,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 23:39:37,887 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2021-01-06 23:39:37,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:39:37,888 INFO L225 Difference]: With dead ends: 61 [2021-01-06 23:39:37,888 INFO L226 Difference]: Without dead ends: 37 [2021-01-06 23:39:37,888 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-01-06 23:39:37,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-01-06 23:39:37,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-01-06 23:39:37,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2021-01-06 23:39:37,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 57 transitions. [2021-01-06 23:39:37,891 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 57 transitions. Word has length 18 [2021-01-06 23:39:37,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:39:37,891 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 57 transitions. [2021-01-06 23:39:37,891 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:39:37,891 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2021-01-06 23:39:37,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-01-06 23:39:37,892 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:39:37,892 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:39:37,892 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-06 23:39:37,892 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:39:37,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:39:37,893 INFO L82 PathProgramCache]: Analyzing trace with hash -1696595058, now seen corresponding path program 3 times [2021-01-06 23:39:37,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:39:37,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187421088] [2021-01-06 23:39:37,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:39:37,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:39:37,962 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 23:39:37,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187421088] [2021-01-06 23:39:37,962 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:39:37,963 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 23:39:37,963 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179676140] [2021-01-06 23:39:37,963 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:39:37,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:39:37,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:39:37,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:39:37,964 INFO L87 Difference]: Start difference. First operand 37 states and 57 transitions. Second operand 5 states. [2021-01-06 23:39:38,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:39:38,011 INFO L93 Difference]: Finished difference Result 36 states and 56 transitions. [2021-01-06 23:39:38,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 23:39:38,011 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2021-01-06 23:39:38,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:39:38,012 INFO L225 Difference]: With dead ends: 36 [2021-01-06 23:39:38,012 INFO L226 Difference]: Without dead ends: 0 [2021-01-06 23:39:38,012 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-01-06 23:39:38,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-01-06 23:39:38,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-01-06 23:39:38,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-01-06 23:39:38,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-01-06 23:39:38,013 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2021-01-06 23:39:38,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:39:38,014 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-01-06 23:39:38,014 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:39:38,014 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-01-06 23:39:38,014 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-06 23:39:38,014 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-01-06 23:39:38,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.01 11:39:38 BasicIcfg [2021-01-06 23:39:38,018 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-06 23:39:38,019 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-01-06 23:39:38,019 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-01-06 23:39:38,019 INFO L275 PluginConnector]: Witness Printer initialized [2021-01-06 23:39:38,020 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:39:31" (3/4) ... [2021-01-06 23:39:38,024 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-01-06 23:39:38,032 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2021-01-06 23:39:38,032 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2021-01-06 23:39:38,033 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2021-01-06 23:39:38,038 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-01-06 23:39:38,038 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-01-06 23:39:38,038 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-01-06 23:39:38,039 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-01-06 23:39:38,083 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/pthread-wmm/safe035_tso.oepc.i-witness.graphml [2021-01-06 23:39:38,084 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-01-06 23:39:38,085 INFO L168 Benchmark]: Toolchain (without parser) took 7873.22 ms. Allocated memory was 164.6 MB in the beginning and 256.9 MB in the end (delta: 92.3 MB). Free memory was 137.6 MB in the beginning and 175.6 MB in the end (delta: -38.0 MB). Peak memory consumption was 55.2 MB. Max. memory is 8.0 GB. [2021-01-06 23:39:38,086 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 164.6 MB. Free memory is still 138.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 23:39:38,086 INFO L168 Benchmark]: CACSL2BoogieTranslator took 861.99 ms. Allocated memory is still 164.6 MB. Free memory was 137.4 MB in the beginning and 142.7 MB in the end (delta: -5.3 MB). Peak memory consumption was 32.5 MB. Max. memory is 8.0 GB. [2021-01-06 23:39:38,087 INFO L168 Benchmark]: Boogie Procedure Inliner took 107.85 ms. Allocated memory is still 164.6 MB. Free memory was 142.2 MB in the beginning and 140.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-01-06 23:39:38,088 INFO L168 Benchmark]: Boogie Preprocessor took 32.47 ms. Allocated memory is still 164.6 MB. Free memory was 140.6 MB in the beginning and 139.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-01-06 23:39:38,088 INFO L168 Benchmark]: RCFGBuilder took 731.36 ms. Allocated memory is still 164.6 MB. Free memory was 139.1 MB in the beginning and 116.5 MB in the end (delta: 22.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2021-01-06 23:39:38,089 INFO L168 Benchmark]: TraceAbstraction took 6062.63 ms. Allocated memory was 164.6 MB in the beginning and 256.9 MB in the end (delta: 92.3 MB). Free memory was 116.5 MB in the beginning and 178.3 MB in the end (delta: -61.7 MB). Peak memory consumption was 31.1 MB. Max. memory is 8.0 GB. [2021-01-06 23:39:38,089 INFO L168 Benchmark]: Witness Printer took 65.08 ms. Allocated memory is still 256.9 MB. Free memory was 178.3 MB in the beginning and 175.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-01-06 23:39:38,093 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 164.6 MB. Free memory is still 138.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 861.99 ms. Allocated memory is still 164.6 MB. Free memory was 137.4 MB in the beginning and 142.7 MB in the end (delta: -5.3 MB). Peak memory consumption was 32.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 107.85 ms. Allocated memory is still 164.6 MB. Free memory was 142.2 MB in the beginning and 140.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 32.47 ms. Allocated memory is still 164.6 MB. Free memory was 140.6 MB in the beginning and 139.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 731.36 ms. Allocated memory is still 164.6 MB. Free memory was 139.1 MB in the beginning and 116.5 MB in the end (delta: 22.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6062.63 ms. Allocated memory was 164.6 MB in the beginning and 256.9 MB in the end (delta: 92.3 MB). Free memory was 116.5 MB in the beginning and 178.3 MB in the end (delta: -61.7 MB). Peak memory consumption was 31.1 MB. Max. memory is 8.0 GB. * Witness Printer took 65.08 ms. Allocated memory is still 256.9 MB. Free memory was 178.3 MB in the beginning and 175.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 845 VarBasedMoverChecksPositive, 39 VarBasedMoverChecksNegative, 7 SemBasedMoverChecksPositive, 32 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 68 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.6s, 83 PlacesBefore, 32 PlacesAfterwards, 75 TransitionsBefore, 23 TransitionsAfterwards, 1296 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 63 TotalNumberOfCompositions, 2511 MoverChecksTotal - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.8s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.6s, HoareTripleCheckerStatistics: 212 SDtfs, 169 SDslu, 305 SDs, 0 SdLazy, 126 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 175 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 136 NumberOfCodeBlocks, 136 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 126 ConstructedInterpolants, 0 QuantifiedInterpolants, 6162 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...