/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/pthread-wmm/thin000_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 23:39:52,979 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 23:39:52,983 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 23:39:53,040 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 23:39:53,041 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 23:39:53,045 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 23:39:53,049 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 23:39:53,054 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 23:39:53,058 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 23:39:53,064 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 23:39:53,068 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 23:39:53,070 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 23:39:53,071 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 23:39:53,074 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 23:39:53,076 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 23:39:53,078 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 23:39:53,080 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 23:39:53,084 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 23:39:53,117 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 23:39:53,126 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 23:39:53,128 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 23:39:53,130 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 23:39:53,132 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 23:39:53,135 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 23:39:53,146 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-06 23:39:53,167 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 23:39:53,169 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 23:39:53,169 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 23:39:53,175 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 23:39:53,224 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 23:39:53,224 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 23:39:53,228 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 23:39:53,228 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 23:39:53,229 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 23:39:53,229 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 23:39:53,229 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 23:39:53,229 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 23:39:53,230 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 23:39:53,230 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 23:39:53,231 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 23:39:53,232 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 23:39:53,232 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 23:39:53,232 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 23:39:53,233 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 23:39:53,233 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 23:39:53,233 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 23:39:53,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 23:39:53,234 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 23:39:53,234 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 23:39:53,234 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 23:39:53,235 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 23:39:53,235 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 23:39:53,235 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 23:39:53,236 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 23:39:53,236 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 23:39:53,660 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 23:39:53,686 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 23:39:53,690 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 23:39:53,691 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 23:39:53,692 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 23:39:53,693 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/thin000_tso.opt.i [2021-01-06 23:39:53,780 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/f1ae08513/e86add30ae7c47738c0c1a725f82d271/FLAG834ccb9e2 [2021-01-06 23:39:54,562 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 23:39:54,563 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/thin000_tso.opt.i [2021-01-06 23:39:54,589 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/f1ae08513/e86add30ae7c47738c0c1a725f82d271/FLAG834ccb9e2 [2021-01-06 23:39:54,763 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/f1ae08513/e86add30ae7c47738c0c1a725f82d271 [2021-01-06 23:39:54,766 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 23:39:54,769 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 23:39:54,771 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 23:39:54,771 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 23:39:54,775 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 23:39:54,776 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 11:39:54" (1/1) ... [2021-01-06 23:39:54,777 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f17a7a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:54, skipping insertion in model container [2021-01-06 23:39:54,778 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 11:39:54" (1/1) ... [2021-01-06 23:39:54,786 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 23:39:54,829 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-06 23:39:55,008 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/thin000_tso.opt.i[949,962] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p0_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p1_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard1~0,GLOBAL] [2021-01-06 23:39:55,266 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 23:39:55,278 INFO L203 MainTranslator]: Completed pre-run [2021-01-06 23:39:55,298 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/thin000_tso.opt.i[949,962] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p0_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p1_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard1~0,GLOBAL] [2021-01-06 23:39:55,330 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 23:39:55,500 INFO L208 MainTranslator]: Completed translation [2021-01-06 23:39:55,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:55 WrapperNode [2021-01-06 23:39:55,501 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 23:39:55,504 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 23:39:55,504 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 23:39:55,504 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 23:39:55,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:55" (1/1) ... [2021-01-06 23:39:55,557 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:55" (1/1) ... [2021-01-06 23:39:55,596 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 23:39:55,600 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 23:39:55,600 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 23:39:55,601 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 23:39:55,614 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:55" (1/1) ... [2021-01-06 23:39:55,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:55" (1/1) ... [2021-01-06 23:39:55,631 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:55" (1/1) ... [2021-01-06 23:39:55,631 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:55" (1/1) ... [2021-01-06 23:39:55,648 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:55" (1/1) ... [2021-01-06 23:39:55,651 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:55" (1/1) ... [2021-01-06 23:39:55,658 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:55" (1/1) ... [2021-01-06 23:39:55,662 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 23:39:55,666 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 23:39:55,666 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 23:39:55,666 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 23:39:55,670 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:55" (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 23:39:55,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-06 23:39:55,794 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-06 23:39:55,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 23:39:55,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-06 23:39:55,794 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-06 23:39:55,794 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-06 23:39:55,795 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-06 23:39:55,795 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-06 23:39:55,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 23:39:55,796 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-06 23:39:55,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 23:39:55,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 23:39:55,799 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 23:39:56,323 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 23:39:56,324 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-01-06 23:39:56,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:39:56 BoogieIcfgContainer [2021-01-06 23:39:56,326 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 23:39:56,328 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 23:39:56,328 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 23:39:56,332 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 23:39:56,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 11:39:54" (1/3) ... [2021-01-06 23:39:56,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1460d384 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 11:39:56, skipping insertion in model container [2021-01-06 23:39:56,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:55" (2/3) ... [2021-01-06 23:39:56,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1460d384 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 11:39:56, skipping insertion in model container [2021-01-06 23:39:56,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:39:56" (3/3) ... [2021-01-06 23:39:56,335 INFO L111 eAbstractionObserver]: Analyzing ICFG thin000_tso.opt.i [2021-01-06 23:39:56,343 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-06 23:39:56,343 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 23:39:56,349 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-06 23:39:56,350 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-06 23:39:56,384 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:56,385 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:56,385 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:56,385 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:56,386 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:56,386 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:56,386 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:56,386 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:56,387 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:56,387 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:56,387 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:56,387 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:56,388 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:56,388 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:56,388 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:56,388 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:56,389 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:56,389 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:56,389 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:56,389 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:56,390 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:56,390 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:56,390 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:56,390 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:56,393 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:56,393 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:56,393 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:56,394 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:56,400 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:56,400 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:56,400 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:56,400 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:56,403 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-06 23:39:56,424 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-01-06 23:39:56,449 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 23:39:56,449 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 23:39:56,449 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 23:39:56,450 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 23:39:56,450 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 23:39:56,450 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 23:39:56,450 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 23:39:56,450 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 23:39:56,464 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-01-06 23:39:56,466 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 61 transitions, 132 flow [2021-01-06 23:39:56,470 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 61 transitions, 132 flow [2021-01-06 23:39:56,472 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 61 transitions, 132 flow [2021-01-06 23:39:56,512 INFO L129 PetriNetUnfolder]: 2/59 cut-off events. [2021-01-06 23:39:56,513 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-01-06 23:39:56,517 INFO L84 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 59 events. 2/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 35 event pairs, 0 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2021-01-06 23:39:56,519 INFO L116 LiptonReduction]: Number of co-enabled transitions 696 [2021-01-06 23:39:58,387 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-01-06 23:39:59,361 WARN L197 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-01-06 23:39:59,466 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-01-06 23:39:59,701 WARN L197 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-01-06 23:39:59,805 INFO L131 LiptonReduction]: Checked pairs total: 1534 [2021-01-06 23:39:59,805 INFO L133 LiptonReduction]: Total number of compositions: 54 [2021-01-06 23:39:59,813 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 23 places, 17 transitions, 44 flow [2021-01-06 23:39:59,827 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 90 states. [2021-01-06 23:39:59,829 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states. [2021-01-06 23:39:59,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-01-06 23:39:59,836 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:39:59,837 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-01-06 23:39:59,837 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:39:59,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:39:59,844 INFO L82 PathProgramCache]: Analyzing trace with hash -1865753681, now seen corresponding path program 1 times [2021-01-06 23:39:59,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:39:59,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038259768] [2021-01-06 23:39:59,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:39:59,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:40:00,037 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 23:40:00,038 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038259768] [2021-01-06 23:40:00,039 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:40:00,039 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 23:40:00,040 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331066867] [2021-01-06 23:40:00,045 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-01-06 23:40:00,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:40:00,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-01-06 23:40:00,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-06 23:40:00,065 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 2 states. [2021-01-06 23:40:00,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:40:00,087 INFO L93 Difference]: Finished difference Result 90 states and 200 transitions. [2021-01-06 23:40:00,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-01-06 23:40:00,089 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2021-01-06 23:40:00,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:40:00,101 INFO L225 Difference]: With dead ends: 90 [2021-01-06 23:40:00,102 INFO L226 Difference]: Without dead ends: 74 [2021-01-06 23:40:00,103 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 23:40:00,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-01-06 23:40:00,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2021-01-06 23:40:00,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2021-01-06 23:40:00,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 160 transitions. [2021-01-06 23:40:00,153 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 160 transitions. Word has length 6 [2021-01-06 23:40:00,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:40:00,154 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 160 transitions. [2021-01-06 23:40:00,154 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-01-06 23:40:00,154 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 160 transitions. [2021-01-06 23:40:00,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-01-06 23:40:00,155 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:40:00,155 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:40:00,155 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 23:40:00,156 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:40:00,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:40:00,157 INFO L82 PathProgramCache]: Analyzing trace with hash -2003798512, now seen corresponding path program 1 times [2021-01-06 23:40:00,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:40:00,157 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560855036] [2021-01-06 23:40:00,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:40:00,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:40:00,340 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 23:40:00,340 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560855036] [2021-01-06 23:40:00,341 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:40:00,341 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 23:40:00,342 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491213538] [2021-01-06 23:40:00,344 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 23:40:00,345 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:40:00,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 23:40:00,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 23:40:00,348 INFO L87 Difference]: Start difference. First operand 74 states and 160 transitions. Second operand 4 states. [2021-01-06 23:40:00,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:40:00,400 INFO L93 Difference]: Finished difference Result 88 states and 179 transitions. [2021-01-06 23:40:00,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 23:40:00,401 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2021-01-06 23:40:00,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:40:00,402 INFO L225 Difference]: With dead ends: 88 [2021-01-06 23:40:00,402 INFO L226 Difference]: Without dead ends: 72 [2021-01-06 23:40:00,403 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 23:40:00,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-01-06 23:40:00,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2021-01-06 23:40:00,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2021-01-06 23:40:00,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 154 transitions. [2021-01-06 23:40:00,414 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 154 transitions. Word has length 7 [2021-01-06 23:40:00,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:40:00,415 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 154 transitions. [2021-01-06 23:40:00,415 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 23:40:00,415 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 154 transitions. [2021-01-06 23:40:00,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-01-06 23:40:00,416 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:40:00,416 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:40:00,416 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-06 23:40:00,416 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:40:00,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:40:00,417 INFO L82 PathProgramCache]: Analyzing trace with hash -1988772591, now seen corresponding path program 1 times [2021-01-06 23:40:00,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:40:00,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471926441] [2021-01-06 23:40:00,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:40:00,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:40:00,498 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 23:40:00,498 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471926441] [2021-01-06 23:40:00,499 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:40:00,499 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 23:40:00,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633391039] [2021-01-06 23:40:00,499 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:40:00,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:40:00,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:40:00,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:40:00,501 INFO L87 Difference]: Start difference. First operand 72 states and 154 transitions. Second operand 5 states. [2021-01-06 23:40:00,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:40:00,583 INFO L93 Difference]: Finished difference Result 123 states and 245 transitions. [2021-01-06 23:40:00,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-06 23:40:00,583 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2021-01-06 23:40:00,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:40:00,585 INFO L225 Difference]: With dead ends: 123 [2021-01-06 23:40:00,585 INFO L226 Difference]: Without dead ends: 84 [2021-01-06 23:40:00,586 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-01-06 23:40:00,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2021-01-06 23:40:00,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 66. [2021-01-06 23:40:00,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2021-01-06 23:40:00,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 136 transitions. [2021-01-06 23:40:00,600 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 136 transitions. Word has length 8 [2021-01-06 23:40:00,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:40:00,600 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 136 transitions. [2021-01-06 23:40:00,600 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:40:00,601 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 136 transitions. [2021-01-06 23:40:00,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-01-06 23:40:00,605 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:40:00,605 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:40:00,605 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-06 23:40:00,605 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:40:00,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:40:00,606 INFO L82 PathProgramCache]: Analyzing trace with hash -1988232509, now seen corresponding path program 1 times [2021-01-06 23:40:00,606 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:40:00,607 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992323165] [2021-01-06 23:40:00,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:40:00,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:40:00,729 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 23:40:00,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992323165] [2021-01-06 23:40:00,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:40:00,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 23:40:00,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846668281] [2021-01-06 23:40:00,731 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:40:00,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:40:00,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:40:00,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:40:00,732 INFO L87 Difference]: Start difference. First operand 66 states and 136 transitions. Second operand 5 states. [2021-01-06 23:40:00,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:40:00,762 INFO L93 Difference]: Finished difference Result 72 states and 140 transitions. [2021-01-06 23:40:00,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 23:40:00,763 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2021-01-06 23:40:00,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:40:00,766 INFO L225 Difference]: With dead ends: 72 [2021-01-06 23:40:00,767 INFO L226 Difference]: Without dead ends: 60 [2021-01-06 23:40:00,767 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-01-06 23:40:00,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-01-06 23:40:00,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2021-01-06 23:40:00,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2021-01-06 23:40:00,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 120 transitions. [2021-01-06 23:40:00,791 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 120 transitions. Word has length 8 [2021-01-06 23:40:00,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:40:00,791 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 120 transitions. [2021-01-06 23:40:00,791 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:40:00,792 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 120 transitions. [2021-01-06 23:40:00,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-01-06 23:40:00,794 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:40:00,795 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:40:00,795 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-06 23:40:00,795 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:40:00,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:40:00,796 INFO L82 PathProgramCache]: Analyzing trace with hash -1522428958, now seen corresponding path program 1 times [2021-01-06 23:40:00,796 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:40:00,797 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487074405] [2021-01-06 23:40:00,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:40:00,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:40:00,885 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 23:40:00,886 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487074405] [2021-01-06 23:40:00,886 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:40:00,886 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 23:40:00,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890939945] [2021-01-06 23:40:00,887 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:40:00,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:40:00,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:40:00,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:40:00,888 INFO L87 Difference]: Start difference. First operand 60 states and 120 transitions. Second operand 5 states. [2021-01-06 23:40:00,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:40:00,959 INFO L93 Difference]: Finished difference Result 83 states and 163 transitions. [2021-01-06 23:40:00,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-06 23:40:00,962 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2021-01-06 23:40:00,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:40:00,963 INFO L225 Difference]: With dead ends: 83 [2021-01-06 23:40:00,963 INFO L226 Difference]: Without dead ends: 56 [2021-01-06 23:40:00,965 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-01-06 23:40:00,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2021-01-06 23:40:00,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2021-01-06 23:40:00,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2021-01-06 23:40:00,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 107 transitions. [2021-01-06 23:40:00,978 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 107 transitions. Word has length 9 [2021-01-06 23:40:00,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:40:00,978 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 107 transitions. [2021-01-06 23:40:00,978 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:40:00,978 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 107 transitions. [2021-01-06 23:40:00,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-01-06 23:40:00,979 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:40:00,979 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:40:00,980 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-06 23:40:00,980 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:40:00,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:40:00,980 INFO L82 PathProgramCache]: Analyzing trace with hash 5797126, now seen corresponding path program 1 times [2021-01-06 23:40:00,981 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:40:00,983 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913809223] [2021-01-06 23:40:00,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:40:01,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:40:01,089 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 23:40:01,090 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913809223] [2021-01-06 23:40:01,090 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:40:01,090 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 23:40:01,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523366575] [2021-01-06 23:40:01,091 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:40:01,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:40:01,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:40:01,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:40:01,095 INFO L87 Difference]: Start difference. First operand 56 states and 107 transitions. Second operand 5 states. [2021-01-06 23:40:01,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:40:01,150 INFO L93 Difference]: Finished difference Result 66 states and 122 transitions. [2021-01-06 23:40:01,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 23:40:01,151 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2021-01-06 23:40:01,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:40:01,151 INFO L225 Difference]: With dead ends: 66 [2021-01-06 23:40:01,152 INFO L226 Difference]: Without dead ends: 42 [2021-01-06 23:40:01,152 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-01-06 23:40:01,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-01-06 23:40:01,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2021-01-06 23:40:01,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2021-01-06 23:40:01,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 76 transitions. [2021-01-06 23:40:01,156 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 76 transitions. Word has length 10 [2021-01-06 23:40:01,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:40:01,157 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 76 transitions. [2021-01-06 23:40:01,157 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:40:01,157 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 76 transitions. [2021-01-06 23:40:01,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-01-06 23:40:01,158 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:40:01,158 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:40:01,158 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-06 23:40:01,158 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:40:01,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:40:01,159 INFO L82 PathProgramCache]: Analyzing trace with hash 567543910, now seen corresponding path program 1 times [2021-01-06 23:40:01,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:40:01,160 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074478522] [2021-01-06 23:40:01,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:40:01,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:40:01,206 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 23:40:01,207 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074478522] [2021-01-06 23:40:01,207 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:40:01,207 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 23:40:01,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948996869] [2021-01-06 23:40:01,208 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:40:01,208 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:40:01,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:40:01,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:40:01,209 INFO L87 Difference]: Start difference. First operand 42 states and 76 transitions. Second operand 5 states. [2021-01-06 23:40:01,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:40:01,244 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2021-01-06 23:40:01,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 23:40:01,244 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2021-01-06 23:40:01,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:40:01,245 INFO L225 Difference]: With dead ends: 36 [2021-01-06 23:40:01,245 INFO L226 Difference]: Without dead ends: 0 [2021-01-06 23:40:01,245 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-01-06 23:40:01,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-01-06 23:40:01,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-01-06 23:40:01,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-01-06 23:40:01,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-01-06 23:40:01,246 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2021-01-06 23:40:01,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:40:01,247 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-01-06 23:40:01,247 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:40:01,247 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-01-06 23:40:01,247 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-06 23:40:01,248 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-06 23:40:01,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.01 11:40:01 BasicIcfg [2021-01-06 23:40:01,252 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-06 23:40:01,252 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-01-06 23:40:01,252 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-01-06 23:40:01,252 INFO L275 PluginConnector]: Witness Printer initialized [2021-01-06 23:40:01,253 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:39:56" (3/4) ... [2021-01-06 23:40:01,256 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-01-06 23:40:01,264 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2021-01-06 23:40:01,264 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2021-01-06 23:40:01,269 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-01-06 23:40:01,269 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-01-06 23:40:01,270 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-01-06 23:40:01,270 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-01-06 23:40:01,315 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/pthread-wmm/thin000_tso.opt.i-witness.graphml [2021-01-06 23:40:01,315 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-01-06 23:40:01,320 INFO L168 Benchmark]: Toolchain (without parser) took 6548.06 ms. Allocated memory was 151.0 MB in the beginning and 189.8 MB in the end (delta: 38.8 MB). Free memory was 125.1 MB in the beginning and 152.1 MB in the end (delta: -26.9 MB). Peak memory consumption was 13.4 MB. Max. memory is 8.0 GB. [2021-01-06 23:40:01,320 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 151.0 MB. Free memory is still 123.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 23:40:01,321 INFO L168 Benchmark]: CACSL2BoogieTranslator took 731.40 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 126.6 MB in the end (delta: -1.5 MB). Peak memory consumption was 27.8 MB. Max. memory is 8.0 GB. [2021-01-06 23:40:01,321 INFO L168 Benchmark]: Boogie Procedure Inliner took 94.43 ms. Allocated memory is still 151.0 MB. Free memory was 126.6 MB in the beginning and 124.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-01-06 23:40:01,322 INFO L168 Benchmark]: Boogie Preprocessor took 62.34 ms. Allocated memory is still 151.0 MB. Free memory was 124.5 MB in the beginning and 123.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-01-06 23:40:01,324 INFO L168 Benchmark]: RCFGBuilder took 660.42 ms. Allocated memory is still 151.0 MB. Free memory was 123.5 MB in the beginning and 103.6 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2021-01-06 23:40:01,325 INFO L168 Benchmark]: TraceAbstraction took 4923.97 ms. Allocated memory was 151.0 MB in the beginning and 189.8 MB in the end (delta: 38.8 MB). Free memory was 103.0 MB in the beginning and 154.7 MB in the end (delta: -51.7 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 23:40:01,326 INFO L168 Benchmark]: Witness Printer took 63.42 ms. Allocated memory is still 189.8 MB. Free memory was 154.7 MB in the beginning and 152.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-01-06 23:40:01,328 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 151.0 MB. Free memory is still 123.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 731.40 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 126.6 MB in the end (delta: -1.5 MB). Peak memory consumption was 27.8 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 94.43 ms. Allocated memory is still 151.0 MB. Free memory was 126.6 MB in the beginning and 124.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 62.34 ms. Allocated memory is still 151.0 MB. Free memory was 124.5 MB in the beginning and 123.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 660.42 ms. Allocated memory is still 151.0 MB. Free memory was 123.5 MB in the beginning and 103.6 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4923.97 ms. Allocated memory was 151.0 MB in the beginning and 189.8 MB in the end (delta: 38.8 MB). Free memory was 103.0 MB in the beginning and 154.7 MB in the end (delta: -51.7 MB). There was no memory consumed. Max. memory is 8.0 GB. * Witness Printer took 63.42 ms. Allocated memory is still 189.8 MB. Free memory was 154.7 MB in the beginning and 152.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 504 VarBasedMoverChecksPositive, 24 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 22 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 54 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.3s, 66 PlacesBefore, 23 PlacesAfterwards, 61 TransitionsBefore, 17 TransitionsAfterwards, 696 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 54 TotalNumberOfCompositions, 1534 MoverChecksTotal - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 60 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.8s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.3s, HoareTripleCheckerStatistics: 115 SDtfs, 122 SDslu, 170 SDs, 0 SdLazy, 67 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 18 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 1459 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...