/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/safe030_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 23:38:25,081 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 23:38:25,086 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 23:38:25,153 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 23:38:25,154 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 23:38:25,158 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 23:38:25,162 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 23:38:25,167 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 23:38:25,171 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 23:38:25,177 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 23:38:25,182 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 23:38:25,183 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 23:38:25,184 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 23:38:25,187 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 23:38:25,189 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 23:38:25,191 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 23:38:25,193 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 23:38:25,196 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 23:38:25,219 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 23:38:25,224 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 23:38:25,229 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 23:38:25,232 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 23:38:25,233 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 23:38:25,236 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 23:38:25,245 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-06 23:38:25,265 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 23:38:25,266 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 23:38:25,267 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 23:38:25,268 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 23:38:25,315 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 23:38:25,316 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 23:38:25,321 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 23:38:25,321 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 23:38:25,321 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 23:38:25,321 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 23:38:25,322 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 23:38:25,322 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 23:38:25,322 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 23:38:25,322 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 23:38:25,323 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 23:38:25,324 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 23:38:25,324 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 23:38:25,324 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 23:38:25,325 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 23:38:25,325 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 23:38:25,325 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 23:38:25,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 23:38:25,326 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 23:38:25,326 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 23:38:25,326 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 23:38:25,326 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 23:38:25,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 23:38:25,327 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 23:38:25,327 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 23:38:25,327 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 23:38:25,766 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 23:38:25,797 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 23:38:25,800 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 23:38:25,802 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 23:38:25,803 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 23:38:25,804 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe030_tso.opt.i [2021-01-06 23:38:25,897 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/3e4c9b4e2/7351610726d84dccbd833175d6d14642/FLAG4961fdf5f [2021-01-06 23:38:26,640 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 23:38:26,641 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe030_tso.opt.i [2021-01-06 23:38:26,674 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/3e4c9b4e2/7351610726d84dccbd833175d6d14642/FLAG4961fdf5f [2021-01-06 23:38:26,893 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/3e4c9b4e2/7351610726d84dccbd833175d6d14642 [2021-01-06 23:38:26,896 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 23:38:26,900 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 23:38:26,904 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 23:38:26,904 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 23:38:26,909 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 23:38:26,911 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 11:38:26" (1/1) ... [2021-01-06 23:38:26,915 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58eb250f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:38:26, skipping insertion in model container [2021-01-06 23:38:26,916 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 11:38:26" (1/1) ... [2021-01-06 23:38:26,927 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 23:38:27,007 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-06 23:38:27,314 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/safe030_tso.opt.i[949,962] left hand side expression in assignment: lhs: VariableLHS[~z~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[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~z~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard1~0,GLOBAL] [2021-01-06 23:38:27,633 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 23:38:27,645 INFO L203 MainTranslator]: Completed pre-run [2021-01-06 23:38:27,665 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe030_tso.opt.i[949,962] left hand side expression in assignment: lhs: VariableLHS[~z~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~z~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard1~0,GLOBAL] [2021-01-06 23:38:27,741 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 23:38:27,877 INFO L208 MainTranslator]: Completed translation [2021-01-06 23:38:27,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:38:27 WrapperNode [2021-01-06 23:38:27,878 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 23:38:27,881 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 23:38:27,881 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 23:38:27,881 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 23:38:27,901 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:38:27" (1/1) ... [2021-01-06 23:38:27,926 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:38:27" (1/1) ... [2021-01-06 23:38:27,950 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 23:38:27,952 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 23:38:27,952 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 23:38:27,952 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 23:38:27,962 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:38:27" (1/1) ... [2021-01-06 23:38:27,962 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:38:27" (1/1) ... [2021-01-06 23:38:27,965 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:38:27" (1/1) ... [2021-01-06 23:38:27,966 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:38:27" (1/1) ... [2021-01-06 23:38:27,972 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:38:27" (1/1) ... [2021-01-06 23:38:27,975 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:38:27" (1/1) ... [2021-01-06 23:38:27,977 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:38:27" (1/1) ... [2021-01-06 23:38:27,980 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 23:38:27,982 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 23:38:27,982 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 23:38:27,982 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 23:38:27,983 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:38:27" (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 23:38:28,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-06 23:38:28,081 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-06 23:38:28,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 23:38:28,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-06 23:38:28,082 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-06 23:38:28,082 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-06 23:38:28,082 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-06 23:38:28,082 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-06 23:38:28,083 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-01-06 23:38:28,083 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-01-06 23:38:28,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 23:38:28,083 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-06 23:38:28,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 23:38:28,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 23:38:28,086 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 23:38:28,620 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 23:38:28,621 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-01-06 23:38:28,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:38:28 BoogieIcfgContainer [2021-01-06 23:38:28,623 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 23:38:28,625 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 23:38:28,625 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 23:38:28,629 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 23:38:28,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 11:38:26" (1/3) ... [2021-01-06 23:38:28,630 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c0727f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 11:38:28, skipping insertion in model container [2021-01-06 23:38:28,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:38:27" (2/3) ... [2021-01-06 23:38:28,631 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c0727f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 11:38:28, skipping insertion in model container [2021-01-06 23:38:28,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:38:28" (3/3) ... [2021-01-06 23:38:28,633 INFO L111 eAbstractionObserver]: Analyzing ICFG safe030_tso.opt.i [2021-01-06 23:38:28,641 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-06 23:38:28,641 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 23:38:28,647 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-06 23:38:28,648 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-06 23:38:28,687 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:28,688 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:28,688 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:28,688 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:28,688 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:28,689 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:28,689 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:28,689 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:28,690 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:28,690 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:28,691 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:28,691 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:28,691 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:28,691 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:28,692 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:28,692 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:28,692 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:28,693 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:28,693 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:28,693 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:28,693 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:28,694 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:28,694 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:28,694 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:28,695 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:28,695 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:28,695 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:28,695 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:28,696 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:28,696 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:28,696 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:28,696 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:28,697 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:28,697 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:28,697 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:28,697 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:28,700 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:28,701 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:28,701 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:28,702 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:28,708 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:28,708 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:28,709 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:28,709 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:28,711 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:28,712 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:28,712 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:28,712 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:38:28,715 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-06 23:38:28,738 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-01-06 23:38:28,764 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 23:38:28,764 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 23:38:28,764 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 23:38:28,765 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 23:38:28,765 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 23:38:28,765 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 23:38:28,765 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 23:38:28,765 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 23:38:28,780 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-01-06 23:38:28,782 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 73 transitions, 161 flow [2021-01-06 23:38:28,786 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 73 transitions, 161 flow [2021-01-06 23:38:28,788 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 73 transitions, 161 flow [2021-01-06 23:38:28,854 INFO L129 PetriNetUnfolder]: 2/70 cut-off events. [2021-01-06 23:38:28,856 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-01-06 23:38:28,869 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 70 events. 2/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 55 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-01-06 23:38:28,874 INFO L116 LiptonReduction]: Number of co-enabled transitions 1296 [2021-01-06 23:38:31,215 WARN L197 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-01-06 23:38:31,395 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-01-06 23:38:31,824 WARN L197 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2021-01-06 23:38:32,126 WARN L197 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2021-01-06 23:38:32,247 INFO L131 LiptonReduction]: Checked pairs total: 2703 [2021-01-06 23:38:32,247 INFO L133 LiptonReduction]: Total number of compositions: 61 [2021-01-06 23:38:32,253 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2021-01-06 23:38:32,283 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2021-01-06 23:38:32,285 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2021-01-06 23:38:32,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-01-06 23:38:32,293 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:38:32,294 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:38:32,294 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:38:32,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:38:32,300 INFO L82 PathProgramCache]: Analyzing trace with hash 1511125318, now seen corresponding path program 1 times [2021-01-06 23:38:32,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:38:32,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114668578] [2021-01-06 23:38:32,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:38:32,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:38:32,568 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 23:38:32,569 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114668578] [2021-01-06 23:38:32,570 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:38:32,571 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 23:38:32,571 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899702516] [2021-01-06 23:38:32,578 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-01-06 23:38:32,579 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:38:32,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-01-06 23:38:32,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-06 23:38:32,601 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2021-01-06 23:38:32,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:38:32,655 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2021-01-06 23:38:32,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-01-06 23:38:32,661 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2021-01-06 23:38:32,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:38:32,679 INFO L225 Difference]: With dead ends: 362 [2021-01-06 23:38:32,679 INFO L226 Difference]: Without dead ends: 298 [2021-01-06 23:38:32,681 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 23:38:32,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2021-01-06 23:38:32,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2021-01-06 23:38:32,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2021-01-06 23:38:32,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2021-01-06 23:38:32,783 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2021-01-06 23:38:32,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:38:32,784 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2021-01-06 23:38:32,784 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-01-06 23:38:32,785 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2021-01-06 23:38:32,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-01-06 23:38:32,786 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:38:32,786 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:38:32,787 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 23:38:32,787 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:38:32,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:38:32,788 INFO L82 PathProgramCache]: Analyzing trace with hash -399770224, now seen corresponding path program 1 times [2021-01-06 23:38:32,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:38:32,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928910871] [2021-01-06 23:38:32,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:38:32,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:38:33,021 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 23:38:33,021 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928910871] [2021-01-06 23:38:33,022 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:38:33,022 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 23:38:33,022 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689757648] [2021-01-06 23:38:33,026 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 23:38:33,027 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:38:33,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 23:38:33,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 23:38:33,029 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2021-01-06 23:38:33,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:38:33,100 INFO L93 Difference]: Finished difference Result 518 states and 1456 transitions. [2021-01-06 23:38:33,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 23:38:33,101 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2021-01-06 23:38:33,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:38:33,110 INFO L225 Difference]: With dead ends: 518 [2021-01-06 23:38:33,110 INFO L226 Difference]: Without dead ends: 372 [2021-01-06 23:38:33,111 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 23:38:33,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2021-01-06 23:38:33,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 312. [2021-01-06 23:38:33,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 312 states. [2021-01-06 23:38:33,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 836 transitions. [2021-01-06 23:38:33,161 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 836 transitions. Word has length 9 [2021-01-06 23:38:33,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:38:33,162 INFO L481 AbstractCegarLoop]: Abstraction has 312 states and 836 transitions. [2021-01-06 23:38:33,162 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 23:38:33,162 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 836 transitions. [2021-01-06 23:38:33,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-01-06 23:38:33,164 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:38:33,164 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:38:33,165 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-06 23:38:33,165 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:38:33,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:38:33,166 INFO L82 PathProgramCache]: Analyzing trace with hash 1147875187, now seen corresponding path program 1 times [2021-01-06 23:38:33,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:38:33,166 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272063419] [2021-01-06 23:38:33,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:38:33,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:38:33,244 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 23:38:33,244 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272063419] [2021-01-06 23:38:33,245 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:38:33,245 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 23:38:33,245 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395298024] [2021-01-06 23:38:33,246 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:38:33,246 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:38:33,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:38:33,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:38:33,248 INFO L87 Difference]: Start difference. First operand 312 states and 836 transitions. Second operand 5 states. [2021-01-06 23:38:33,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:38:33,311 INFO L93 Difference]: Finished difference Result 430 states and 1110 transitions. [2021-01-06 23:38:33,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-06 23:38:33,312 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2021-01-06 23:38:33,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:38:33,315 INFO L225 Difference]: With dead ends: 430 [2021-01-06 23:38:33,315 INFO L226 Difference]: Without dead ends: 346 [2021-01-06 23:38:33,316 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 23:38:33,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2021-01-06 23:38:33,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 290. [2021-01-06 23:38:33,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2021-01-06 23:38:33,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 762 transitions. [2021-01-06 23:38:33,332 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 762 transitions. Word has length 10 [2021-01-06 23:38:33,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:38:33,332 INFO L481 AbstractCegarLoop]: Abstraction has 290 states and 762 transitions. [2021-01-06 23:38:33,332 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:38:33,332 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 762 transitions. [2021-01-06 23:38:33,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-01-06 23:38:33,334 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:38:33,335 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:38:33,335 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-06 23:38:33,335 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:38:33,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:38:33,336 INFO L82 PathProgramCache]: Analyzing trace with hash 345922742, now seen corresponding path program 1 times [2021-01-06 23:38:33,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:38:33,336 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447892045] [2021-01-06 23:38:33,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:38:33,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:38:33,443 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 23:38:33,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447892045] [2021-01-06 23:38:33,444 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:38:33,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 23:38:33,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262138026] [2021-01-06 23:38:33,448 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:38:33,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:38:33,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:38:33,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:38:33,450 INFO L87 Difference]: Start difference. First operand 290 states and 762 transitions. Second operand 5 states. [2021-01-06 23:38:33,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:38:33,521 INFO L93 Difference]: Finished difference Result 392 states and 1001 transitions. [2021-01-06 23:38:33,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-06 23:38:33,521 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2021-01-06 23:38:33,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:38:33,524 INFO L225 Difference]: With dead ends: 392 [2021-01-06 23:38:33,525 INFO L226 Difference]: Without dead ends: 326 [2021-01-06 23:38:33,525 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 23:38:33,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2021-01-06 23:38:33,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 270. [2021-01-06 23:38:33,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2021-01-06 23:38:33,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 698 transitions. [2021-01-06 23:38:33,538 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 698 transitions. Word has length 10 [2021-01-06 23:38:33,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:38:33,538 INFO L481 AbstractCegarLoop]: Abstraction has 270 states and 698 transitions. [2021-01-06 23:38:33,538 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:38:33,538 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 698 transitions. [2021-01-06 23:38:33,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-01-06 23:38:33,540 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:38:33,540 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:38:33,540 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-06 23:38:33,541 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:38:33,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:38:33,541 INFO L82 PathProgramCache]: Analyzing trace with hash 2133634442, now seen corresponding path program 1 times [2021-01-06 23:38:33,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:38:33,542 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869707958] [2021-01-06 23:38:33,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:38:33,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:38:33,598 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 23:38:33,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869707958] [2021-01-06 23:38:33,599 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:38:33,599 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 23:38:33,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294821010] [2021-01-06 23:38:33,600 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:38:33,600 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:38:33,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:38:33,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:38:33,601 INFO L87 Difference]: Start difference. First operand 270 states and 698 transitions. Second operand 5 states. [2021-01-06 23:38:33,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:38:33,664 INFO L93 Difference]: Finished difference Result 356 states and 902 transitions. [2021-01-06 23:38:33,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-06 23:38:33,664 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2021-01-06 23:38:33,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:38:33,667 INFO L225 Difference]: With dead ends: 356 [2021-01-06 23:38:33,668 INFO L226 Difference]: Without dead ends: 312 [2021-01-06 23:38:33,668 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 23:38:33,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2021-01-06 23:38:33,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 260. [2021-01-06 23:38:33,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 260 states. [2021-01-06 23:38:33,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 664 transitions. [2021-01-06 23:38:33,679 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 664 transitions. Word has length 11 [2021-01-06 23:38:33,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:38:33,680 INFO L481 AbstractCegarLoop]: Abstraction has 260 states and 664 transitions. [2021-01-06 23:38:33,680 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:38:33,680 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 664 transitions. [2021-01-06 23:38:33,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-01-06 23:38:33,681 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:38:33,682 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:38:33,682 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-06 23:38:33,682 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:38:33,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:38:33,683 INFO L82 PathProgramCache]: Analyzing trace with hash -399190841, now seen corresponding path program 1 times [2021-01-06 23:38:33,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:38:33,683 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435479260] [2021-01-06 23:38:33,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:38:33,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:38:33,741 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 23:38:33,743 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435479260] [2021-01-06 23:38:33,743 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:38:33,744 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 23:38:33,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473654885] [2021-01-06 23:38:33,744 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:38:33,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:38:33,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:38:33,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:38:33,745 INFO L87 Difference]: Start difference. First operand 260 states and 664 transitions. Second operand 5 states. [2021-01-06 23:38:33,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:38:33,797 INFO L93 Difference]: Finished difference Result 406 states and 991 transitions. [2021-01-06 23:38:33,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-06 23:38:33,798 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2021-01-06 23:38:33,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:38:33,800 INFO L225 Difference]: With dead ends: 406 [2021-01-06 23:38:33,801 INFO L226 Difference]: Without dead ends: 324 [2021-01-06 23:38:33,801 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 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 23:38:33,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2021-01-06 23:38:33,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 244. [2021-01-06 23:38:33,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2021-01-06 23:38:33,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 598 transitions. [2021-01-06 23:38:33,812 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 598 transitions. Word has length 12 [2021-01-06 23:38:33,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:38:33,812 INFO L481 AbstractCegarLoop]: Abstraction has 244 states and 598 transitions. [2021-01-06 23:38:33,813 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:38:33,813 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 598 transitions. [2021-01-06 23:38:33,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-01-06 23:38:33,814 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:38:33,814 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:38:33,814 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-06 23:38:33,814 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:38:33,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:38:33,815 INFO L82 PathProgramCache]: Analyzing trace with hash -932777299, now seen corresponding path program 1 times [2021-01-06 23:38:33,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:38:33,815 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302309501] [2021-01-06 23:38:33,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:38:33,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:38:33,873 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 23:38:33,873 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302309501] [2021-01-06 23:38:33,874 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:38:33,874 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 23:38:33,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814278066] [2021-01-06 23:38:33,875 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 23:38:33,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:38:33,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 23:38:33,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 23:38:33,876 INFO L87 Difference]: Start difference. First operand 244 states and 598 transitions. Second operand 4 states. [2021-01-06 23:38:33,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:38:33,928 INFO L93 Difference]: Finished difference Result 248 states and 536 transitions. [2021-01-06 23:38:33,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 23:38:33,929 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2021-01-06 23:38:33,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:38:33,931 INFO L225 Difference]: With dead ends: 248 [2021-01-06 23:38:33,931 INFO L226 Difference]: Without dead ends: 187 [2021-01-06 23:38:33,932 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 23:38:33,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2021-01-06 23:38:33,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2021-01-06 23:38:33,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2021-01-06 23:38:33,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 395 transitions. [2021-01-06 23:38:33,940 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 395 transitions. Word has length 12 [2021-01-06 23:38:33,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:38:33,940 INFO L481 AbstractCegarLoop]: Abstraction has 187 states and 395 transitions. [2021-01-06 23:38:33,941 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 23:38:33,941 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 395 transitions. [2021-01-06 23:38:33,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-01-06 23:38:33,942 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:38:33,942 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:38:33,942 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-06 23:38:33,942 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:38:33,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:38:33,943 INFO L82 PathProgramCache]: Analyzing trace with hash 1335013917, now seen corresponding path program 1 times [2021-01-06 23:38:33,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:38:33,944 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296140033] [2021-01-06 23:38:33,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:38:33,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:38:34,004 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 23:38:34,005 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296140033] [2021-01-06 23:38:34,005 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:38:34,005 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 23:38:34,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614923604] [2021-01-06 23:38:34,006 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:38:34,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:38:34,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:38:34,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:38:34,008 INFO L87 Difference]: Start difference. First operand 187 states and 395 transitions. Second operand 5 states. [2021-01-06 23:38:34,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:38:34,058 INFO L93 Difference]: Finished difference Result 267 states and 539 transitions. [2021-01-06 23:38:34,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-06 23:38:34,059 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2021-01-06 23:38:34,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:38:34,060 INFO L225 Difference]: With dead ends: 267 [2021-01-06 23:38:34,061 INFO L226 Difference]: Without dead ends: 221 [2021-01-06 23:38:34,061 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 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 23:38:34,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2021-01-06 23:38:34,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 174. [2021-01-06 23:38:34,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2021-01-06 23:38:34,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 363 transitions. [2021-01-06 23:38:34,069 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 363 transitions. Word has length 13 [2021-01-06 23:38:34,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:38:34,070 INFO L481 AbstractCegarLoop]: Abstraction has 174 states and 363 transitions. [2021-01-06 23:38:34,070 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:38:34,070 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 363 transitions. [2021-01-06 23:38:34,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-01-06 23:38:34,071 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:38:34,071 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:38:34,071 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-06 23:38:34,071 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:38:34,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:38:34,072 INFO L82 PathProgramCache]: Analyzing trace with hash 1081898830, now seen corresponding path program 1 times [2021-01-06 23:38:34,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:38:34,073 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646797176] [2021-01-06 23:38:34,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:38:34,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:38:34,130 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 23:38:34,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646797176] [2021-01-06 23:38:34,131 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:38:34,131 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 23:38:34,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953238559] [2021-01-06 23:38:34,131 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:38:34,132 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:38:34,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:38:34,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:38:34,133 INFO L87 Difference]: Start difference. First operand 174 states and 363 transitions. Second operand 5 states. [2021-01-06 23:38:34,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:38:34,182 INFO L93 Difference]: Finished difference Result 258 states and 510 transitions. [2021-01-06 23:38:34,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-06 23:38:34,183 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2021-01-06 23:38:34,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:38:34,185 INFO L225 Difference]: With dead ends: 258 [2021-01-06 23:38:34,185 INFO L226 Difference]: Without dead ends: 212 [2021-01-06 23:38:34,185 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 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 23:38:34,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2021-01-06 23:38:34,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 165. [2021-01-06 23:38:34,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2021-01-06 23:38:34,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 340 transitions. [2021-01-06 23:38:34,192 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 340 transitions. Word has length 13 [2021-01-06 23:38:34,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:38:34,193 INFO L481 AbstractCegarLoop]: Abstraction has 165 states and 340 transitions. [2021-01-06 23:38:34,193 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:38:34,193 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 340 transitions. [2021-01-06 23:38:34,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-01-06 23:38:34,194 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:38:34,194 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:38:34,194 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-06 23:38:34,194 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:38:34,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:38:34,195 INFO L82 PathProgramCache]: Analyzing trace with hash -144595800, now seen corresponding path program 1 times [2021-01-06 23:38:34,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:38:34,196 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655666468] [2021-01-06 23:38:34,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:38:34,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:38:34,248 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 23:38:34,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655666468] [2021-01-06 23:38:34,249 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:38:34,249 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 23:38:34,250 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814604966] [2021-01-06 23:38:34,250 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:38:34,250 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:38:34,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:38:34,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:38:34,251 INFO L87 Difference]: Start difference. First operand 165 states and 340 transitions. Second operand 5 states. [2021-01-06 23:38:34,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:38:34,294 INFO L93 Difference]: Finished difference Result 147 states and 274 transitions. [2021-01-06 23:38:34,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 23:38:34,295 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2021-01-06 23:38:34,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:38:34,296 INFO L225 Difference]: With dead ends: 147 [2021-01-06 23:38:34,296 INFO L226 Difference]: Without dead ends: 96 [2021-01-06 23:38:34,297 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 23:38:34,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2021-01-06 23:38:34,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2021-01-06 23:38:34,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2021-01-06 23:38:34,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 163 transitions. [2021-01-06 23:38:34,301 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 163 transitions. Word has length 14 [2021-01-06 23:38:34,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:38:34,301 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 163 transitions. [2021-01-06 23:38:34,301 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:38:34,301 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 163 transitions. [2021-01-06 23:38:34,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-01-06 23:38:34,302 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:38:34,302 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:38:34,302 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-01-06 23:38:34,303 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:38:34,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:38:34,303 INFO L82 PathProgramCache]: Analyzing trace with hash -1619656222, now seen corresponding path program 1 times [2021-01-06 23:38:34,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:38:34,304 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593310998] [2021-01-06 23:38:34,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:38:34,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:38:34,363 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 23:38:34,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593310998] [2021-01-06 23:38:34,363 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:38:34,364 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 23:38:34,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414651449] [2021-01-06 23:38:34,364 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 23:38:34,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:38:34,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 23:38:34,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-01-06 23:38:34,366 INFO L87 Difference]: Start difference. First operand 96 states and 163 transitions. Second operand 6 states. [2021-01-06 23:38:34,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:38:34,402 INFO L93 Difference]: Finished difference Result 82 states and 141 transitions. [2021-01-06 23:38:34,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 23:38:34,402 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2021-01-06 23:38:34,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:38:34,403 INFO L225 Difference]: With dead ends: 82 [2021-01-06 23:38:34,403 INFO L226 Difference]: Without dead ends: 0 [2021-01-06 23:38:34,403 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-01-06 23:38:34,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-01-06 23:38:34,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-01-06 23:38:34,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-01-06 23:38:34,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-01-06 23:38:34,404 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2021-01-06 23:38:34,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:38:34,405 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-01-06 23:38:34,405 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 23:38:34,405 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-01-06 23:38:34,405 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-06 23:38:34,405 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-01-06 23:38:34,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.01 11:38:34 BasicIcfg [2021-01-06 23:38:34,410 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-06 23:38:34,410 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-01-06 23:38:34,411 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-01-06 23:38:34,411 INFO L275 PluginConnector]: Witness Printer initialized [2021-01-06 23:38:34,411 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:38:28" (3/4) ... [2021-01-06 23:38:34,415 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-01-06 23:38:34,424 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2021-01-06 23:38:34,424 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2021-01-06 23:38:34,424 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2021-01-06 23:38:34,430 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-01-06 23:38:34,430 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-01-06 23:38:34,430 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-01-06 23:38:34,430 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-01-06 23:38:34,477 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/pthread-wmm/safe030_tso.opt.i-witness.graphml [2021-01-06 23:38:34,477 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-01-06 23:38:34,479 INFO L168 Benchmark]: Toolchain (without parser) took 7579.34 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 125.3 MB in the beginning and 122.1 MB in the end (delta: 3.2 MB). Peak memory consumption was 71.7 MB. Max. memory is 8.0 GB. [2021-01-06 23:38:34,479 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory was 123.7 MB in the beginning and 123.6 MB in the end (delta: 84.5 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 23:38:34,481 INFO L168 Benchmark]: CACSL2BoogieTranslator took 975.46 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 127.5 MB in the end (delta: -2.3 MB). Peak memory consumption was 30.1 MB. Max. memory is 8.0 GB. [2021-01-06 23:38:34,483 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.00 ms. Allocated memory is still 151.0 MB. Free memory was 127.5 MB in the beginning and 125.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-01-06 23:38:34,484 INFO L168 Benchmark]: Boogie Preprocessor took 29.19 ms. Allocated memory is still 151.0 MB. Free memory was 125.4 MB in the beginning and 124.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-01-06 23:38:34,484 INFO L168 Benchmark]: RCFGBuilder took 641.90 ms. Allocated memory is still 151.0 MB. Free memory was 124.3 MB in the beginning and 102.3 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2021-01-06 23:38:34,485 INFO L168 Benchmark]: TraceAbstraction took 5784.81 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 101.8 MB in the beginning and 125.2 MB in the end (delta: -23.4 MB). Peak memory consumption was 44.7 MB. Max. memory is 8.0 GB. [2021-01-06 23:38:34,485 INFO L168 Benchmark]: Witness Printer took 66.89 ms. Allocated memory is still 218.1 MB. Free memory was 125.2 MB in the beginning and 122.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-01-06 23:38:34,498 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 151.0 MB. Free memory was 123.7 MB in the beginning and 123.6 MB in the end (delta: 84.5 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 975.46 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 127.5 MB in the end (delta: -2.3 MB). Peak memory consumption was 30.1 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 70.00 ms. Allocated memory is still 151.0 MB. Free memory was 127.5 MB in the beginning and 125.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 29.19 ms. Allocated memory is still 151.0 MB. Free memory was 125.4 MB in the beginning and 124.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 641.90 ms. Allocated memory is still 151.0 MB. Free memory was 124.3 MB in the beginning and 102.3 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5784.81 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 101.8 MB in the beginning and 125.2 MB in the end (delta: -23.4 MB). Peak memory consumption was 44.7 MB. Max. memory is 8.0 GB. * Witness Printer took 66.89 ms. Allocated memory is still 218.1 MB. Free memory was 125.2 MB in the beginning and 122.1 MB in the end (delta: 3.1 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 805 VarBasedMoverChecksPositive, 36 VarBasedMoverChecksNegative, 6 SemBasedMoverChecksPositive, 30 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 73 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.4s, 81 PlacesBefore, 32 PlacesAfterwards, 73 TransitionsBefore, 23 TransitionsAfterwards, 1296 CoEnabledTransitionPairs, 6 FixpointIterations, 16 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 61 TotalNumberOfCompositions, 2703 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, 72 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.6s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.5s, HoareTripleCheckerStatistics: 299 SDtfs, 274 SDslu, 492 SDs, 0 SdLazy, 170 SolverSat, 46 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 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: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 398 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 128 NumberOfCodeBlocks, 128 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 117 ConstructedInterpolants, 0 QuantifiedInterpolants, 6358 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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...