/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/safe007_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 23:32:04,495 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 23:32:04,499 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 23:32:04,558 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 23:32:04,559 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 23:32:04,563 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 23:32:04,567 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 23:32:04,573 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 23:32:04,576 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 23:32:04,582 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 23:32:04,587 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 23:32:04,588 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 23:32:04,589 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 23:32:04,592 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 23:32:04,594 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 23:32:04,596 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 23:32:04,598 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 23:32:04,599 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 23:32:04,608 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 23:32:04,617 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 23:32:04,619 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 23:32:04,621 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 23:32:04,623 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 23:32:04,626 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 23:32:04,658 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-06 23:32:04,658 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-06 23:32:04,659 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-06 23:32:04,661 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-06 23:32:04,661 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-06 23:32:04,662 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-06 23:32:04,663 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-06 23:32:04,664 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-06 23:32:04,666 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-06 23:32:04,667 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-06 23:32:04,668 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-06 23:32:04,668 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-06 23:32:04,669 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-06 23:32:04,675 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-06 23:32:04,676 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 23:32:04,677 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 23:32:04,677 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 23:32:04,678 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 23:32:04,716 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 23:32:04,717 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 23:32:04,718 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 23:32:04,718 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 23:32:04,718 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 23:32:04,719 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 23:32:04,719 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 23:32:04,719 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 23:32:04,719 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 23:32:04,719 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 23:32:04,720 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 23:32:04,720 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 23:32:04,720 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 23:32:04,720 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 23:32:04,721 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 23:32:04,721 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 23:32:04,721 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 23:32:04,721 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 23:32:04,721 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 23:32:04,722 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 23:32:04,722 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 23:32:04,722 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 23:32:04,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 23:32:04,722 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 23:32:04,722 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 23:32:04,723 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 23:32:05,091 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 23:32:05,121 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 23:32:05,125 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 23:32:05,126 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 23:32:05,127 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 23:32:05,128 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe007_tso.opt.i [2021-01-06 23:32:05,220 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/ae61a077d/779648af1ebe4b1f858f55c3a35178d4/FLAGdf34c482a [2021-01-06 23:32:06,025 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 23:32:06,025 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe007_tso.opt.i [2021-01-06 23:32:06,052 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/ae61a077d/779648af1ebe4b1f858f55c3a35178d4/FLAGdf34c482a [2021-01-06 23:32:06,234 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/ae61a077d/779648af1ebe4b1f858f55c3a35178d4 [2021-01-06 23:32:06,238 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 23:32:06,241 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 23:32:06,248 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 23:32:06,248 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 23:32:06,253 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 23:32:06,254 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 11:32:06" (1/1) ... [2021-01-06 23:32:06,255 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7930dee7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:32:06, skipping insertion in model container [2021-01-06 23:32:06,256 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 11:32:06" (1/1) ... [2021-01-06 23:32:06,265 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 23:32:06,306 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-06 23:32:06,480 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/safe007_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[~__unbuffered_p2_EAX~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$tmp_guard1~0,GLOBAL] [2021-01-06 23:32:06,731 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 23:32:06,744 INFO L203 MainTranslator]: Completed pre-run [2021-01-06 23:32:06,759 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe007_tso.opt.i[949,962] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p0_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p1_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p2_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~z~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard1~0,GLOBAL] [2021-01-06 23:32:06,798 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 23:32:06,904 INFO L208 MainTranslator]: Completed translation [2021-01-06 23:32:06,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:32:06 WrapperNode [2021-01-06 23:32:06,905 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 23:32:06,906 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 23:32:06,907 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 23:32:06,907 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 23:32:06,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:32:06" (1/1) ... [2021-01-06 23:32:06,933 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:32:06" (1/1) ... [2021-01-06 23:32:06,957 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 23:32:06,958 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 23:32:06,959 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 23:32:06,959 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 23:32:06,968 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:32:06" (1/1) ... [2021-01-06 23:32:06,969 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:32:06" (1/1) ... [2021-01-06 23:32:06,972 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:32:06" (1/1) ... [2021-01-06 23:32:06,973 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:32:06" (1/1) ... [2021-01-06 23:32:06,980 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:32:06" (1/1) ... [2021-01-06 23:32:06,983 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:32:06" (1/1) ... [2021-01-06 23:32:06,985 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:32:06" (1/1) ... [2021-01-06 23:32:06,989 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 23:32:06,990 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 23:32:06,990 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 23:32:06,990 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 23:32:06,992 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:32:06" (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 23:32:07,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-06 23:32:07,093 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-06 23:32:07,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 23:32:07,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-06 23:32:07,093 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-06 23:32:07,094 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-06 23:32:07,094 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-06 23:32:07,094 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-06 23:32:07,094 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-01-06 23:32:07,094 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-01-06 23:32:07,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 23:32:07,095 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-06 23:32:07,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 23:32:07,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 23:32:07,097 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 23:32:07,621 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 23:32:07,622 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-01-06 23:32:07,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:32:07 BoogieIcfgContainer [2021-01-06 23:32:07,627 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 23:32:07,629 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 23:32:07,629 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 23:32:07,633 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 23:32:07,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 11:32:06" (1/3) ... [2021-01-06 23:32:07,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d2e4d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 11:32:07, skipping insertion in model container [2021-01-06 23:32:07,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:32:06" (2/3) ... [2021-01-06 23:32:07,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d2e4d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 11:32:07, skipping insertion in model container [2021-01-06 23:32:07,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:32:07" (3/3) ... [2021-01-06 23:32:07,641 INFO L111 eAbstractionObserver]: Analyzing ICFG safe007_tso.opt.i [2021-01-06 23:32:07,650 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-06 23:32:07,650 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 23:32:07,656 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-06 23:32:07,657 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-06 23:32:07,713 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:07,713 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:07,713 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:07,714 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:07,714 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:07,714 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:07,714 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:07,715 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:07,715 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:07,715 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:07,716 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:07,716 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:07,717 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:07,718 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:07,718 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:07,718 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:07,718 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:07,719 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:07,719 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:07,719 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:07,720 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:07,720 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:07,720 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:07,720 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:07,723 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:07,723 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:07,723 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:07,723 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:07,725 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:07,726 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:07,726 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:07,726 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:07,727 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:07,727 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:07,727 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:07,728 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:07,731 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:07,732 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:07,737 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:07,737 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:07,752 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:07,753 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:07,753 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:07,754 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:07,757 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:07,757 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:07,758 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:07,758 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:07,761 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-06 23:32:07,785 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-01-06 23:32:07,830 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 23:32:07,830 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 23:32:07,830 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 23:32:07,830 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 23:32:07,830 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 23:32:07,831 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 23:32:07,831 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 23:32:07,832 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 23:32:07,854 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-01-06 23:32:07,863 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 76 transitions, 167 flow [2021-01-06 23:32:07,868 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 76 transitions, 167 flow [2021-01-06 23:32:07,871 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 76 transitions, 167 flow [2021-01-06 23:32:07,955 INFO L129 PetriNetUnfolder]: 2/73 cut-off events. [2021-01-06 23:32:07,955 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-01-06 23:32:07,960 INFO L84 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 73 events. 2/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-01-06 23:32:07,963 INFO L116 LiptonReduction]: Number of co-enabled transitions 1296 [2021-01-06 23:32:10,921 WARN L197 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2021-01-06 23:32:11,032 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-01-06 23:32:11,298 WARN L197 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2021-01-06 23:32:11,423 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-01-06 23:32:11,759 INFO L131 LiptonReduction]: Checked pairs total: 2541 [2021-01-06 23:32:11,760 INFO L133 LiptonReduction]: Total number of compositions: 64 [2021-01-06 23:32:11,767 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2021-01-06 23:32:11,802 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2021-01-06 23:32:11,804 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2021-01-06 23:32:11,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-01-06 23:32:11,813 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:32:11,813 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:32:11,814 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:32:11,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:32:11,822 INFO L82 PathProgramCache]: Analyzing trace with hash 995547002, now seen corresponding path program 1 times [2021-01-06 23:32:11,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:32:11,833 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647234779] [2021-01-06 23:32:11,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:32:11,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:32:12,165 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 23:32:12,166 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647234779] [2021-01-06 23:32:12,166 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:32:12,167 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-01-06 23:32:12,169 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054432317] [2021-01-06 23:32:12,174 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 23:32:12,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:32:12,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 23:32:12,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 23:32:12,196 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2021-01-06 23:32:12,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:32:12,277 INFO L93 Difference]: Finished difference Result 360 states and 1001 transitions. [2021-01-06 23:32:12,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 23:32:12,279 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2021-01-06 23:32:12,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:32:12,296 INFO L225 Difference]: With dead ends: 360 [2021-01-06 23:32:12,297 INFO L226 Difference]: Without dead ends: 233 [2021-01-06 23:32:12,298 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 23:32:12,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2021-01-06 23:32:12,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2021-01-06 23:32:12,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2021-01-06 23:32:12,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 652 transitions. [2021-01-06 23:32:12,371 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 652 transitions. Word has length 8 [2021-01-06 23:32:12,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:32:12,373 INFO L481 AbstractCegarLoop]: Abstraction has 233 states and 652 transitions. [2021-01-06 23:32:12,373 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 23:32:12,373 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 652 transitions. [2021-01-06 23:32:12,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-01-06 23:32:12,374 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:32:12,375 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:32:12,375 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 23:32:12,375 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:32:12,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:32:12,376 INFO L82 PathProgramCache]: Analyzing trace with hash 755699245, now seen corresponding path program 1 times [2021-01-06 23:32:12,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:32:12,376 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212988236] [2021-01-06 23:32:12,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:32:12,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:32:12,479 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 23:32:12,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212988236] [2021-01-06 23:32:12,479 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:32:12,479 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 23:32:12,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527755238] [2021-01-06 23:32:12,481 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 23:32:12,481 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:32:12,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 23:32:12,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 23:32:12,483 INFO L87 Difference]: Start difference. First operand 233 states and 652 transitions. Second operand 4 states. [2021-01-06 23:32:12,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:32:12,517 INFO L93 Difference]: Finished difference Result 383 states and 1016 transitions. [2021-01-06 23:32:12,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 23:32:12,518 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2021-01-06 23:32:12,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:32:12,522 INFO L225 Difference]: With dead ends: 383 [2021-01-06 23:32:12,522 INFO L226 Difference]: Without dead ends: 329 [2021-01-06 23:32:12,523 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 23:32:12,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2021-01-06 23:32:12,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 284. [2021-01-06 23:32:12,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 284 states. [2021-01-06 23:32:12,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 779 transitions. [2021-01-06 23:32:12,587 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 779 transitions. Word has length 9 [2021-01-06 23:32:12,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:32:12,587 INFO L481 AbstractCegarLoop]: Abstraction has 284 states and 779 transitions. [2021-01-06 23:32:12,588 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 23:32:12,588 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 779 transitions. [2021-01-06 23:32:12,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-01-06 23:32:12,589 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:32:12,589 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:32:12,590 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-06 23:32:12,590 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:32:12,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:32:12,591 INFO L82 PathProgramCache]: Analyzing trace with hash 797195438, now seen corresponding path program 1 times [2021-01-06 23:32:12,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:32:12,591 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010560955] [2021-01-06 23:32:12,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:32:12,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:32:12,661 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 23:32:12,661 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010560955] [2021-01-06 23:32:12,661 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:32:12,662 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 23:32:12,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926894025] [2021-01-06 23:32:12,662 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 23:32:12,662 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:32:12,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 23:32:12,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-01-06 23:32:12,664 INFO L87 Difference]: Start difference. First operand 284 states and 779 transitions. Second operand 4 states. [2021-01-06 23:32:12,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:32:12,680 INFO L93 Difference]: Finished difference Result 269 states and 727 transitions. [2021-01-06 23:32:12,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 23:32:12,681 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2021-01-06 23:32:12,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:32:12,683 INFO L225 Difference]: With dead ends: 269 [2021-01-06 23:32:12,684 INFO L226 Difference]: Without dead ends: 269 [2021-01-06 23:32:12,684 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-01-06 23:32:12,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2021-01-06 23:32:12,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 269. [2021-01-06 23:32:12,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2021-01-06 23:32:12,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 727 transitions. [2021-01-06 23:32:12,699 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 727 transitions. Word has length 9 [2021-01-06 23:32:12,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:32:12,700 INFO L481 AbstractCegarLoop]: Abstraction has 269 states and 727 transitions. [2021-01-06 23:32:12,700 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 23:32:12,700 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 727 transitions. [2021-01-06 23:32:12,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-01-06 23:32:12,702 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:32:12,702 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:32:12,702 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-06 23:32:12,703 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:32:12,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:32:12,703 INFO L82 PathProgramCache]: Analyzing trace with hash 1951849563, now seen corresponding path program 1 times [2021-01-06 23:32:12,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:32:12,704 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641269032] [2021-01-06 23:32:12,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:32:12,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:32:12,761 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 23:32:12,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641269032] [2021-01-06 23:32:12,761 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:32:12,762 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 23:32:12,762 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231602460] [2021-01-06 23:32:12,762 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 23:32:12,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:32:12,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 23:32:12,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 23:32:12,764 INFO L87 Difference]: Start difference. First operand 269 states and 727 transitions. Second operand 4 states. [2021-01-06 23:32:12,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:32:12,785 INFO L93 Difference]: Finished difference Result 290 states and 749 transitions. [2021-01-06 23:32:12,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 23:32:12,786 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2021-01-06 23:32:12,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:32:12,788 INFO L225 Difference]: With dead ends: 290 [2021-01-06 23:32:12,788 INFO L226 Difference]: Without dead ends: 176 [2021-01-06 23:32:12,788 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 23:32:12,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2021-01-06 23:32:12,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 140. [2021-01-06 23:32:12,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2021-01-06 23:32:12,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 339 transitions. [2021-01-06 23:32:12,795 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 339 transitions. Word has length 10 [2021-01-06 23:32:12,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:32:12,795 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 339 transitions. [2021-01-06 23:32:12,796 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 23:32:12,796 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 339 transitions. [2021-01-06 23:32:12,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-01-06 23:32:12,797 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:32:12,797 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:32:12,798 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-06 23:32:12,798 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:32:12,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:32:12,799 INFO L82 PathProgramCache]: Analyzing trace with hash -1183830127, now seen corresponding path program 1 times [2021-01-06 23:32:12,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:32:12,799 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762836298] [2021-01-06 23:32:12,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:32:12,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:32:12,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:32:12,864 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762836298] [2021-01-06 23:32:12,864 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:32:12,864 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 23:32:12,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061088309] [2021-01-06 23:32:12,865 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:32:12,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:32:12,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:32:12,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:32:12,866 INFO L87 Difference]: Start difference. First operand 140 states and 339 transitions. Second operand 5 states. [2021-01-06 23:32:12,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:32:12,887 INFO L93 Difference]: Finished difference Result 158 states and 372 transitions. [2021-01-06 23:32:12,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 23:32:12,887 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2021-01-06 23:32:12,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:32:12,888 INFO L225 Difference]: With dead ends: 158 [2021-01-06 23:32:12,888 INFO L226 Difference]: Without dead ends: 68 [2021-01-06 23:32:12,889 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-01-06 23:32:12,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-01-06 23:32:12,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2021-01-06 23:32:12,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2021-01-06 23:32:12,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 144 transitions. [2021-01-06 23:32:12,892 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 144 transitions. Word has length 12 [2021-01-06 23:32:12,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:32:12,892 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 144 transitions. [2021-01-06 23:32:12,893 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:32:12,893 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 144 transitions. [2021-01-06 23:32:12,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-01-06 23:32:12,893 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:32:12,894 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:32:12,894 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-06 23:32:12,894 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:32:12,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:32:12,895 INFO L82 PathProgramCache]: Analyzing trace with hash -936336033, now seen corresponding path program 1 times [2021-01-06 23:32:12,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:32:12,895 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675964552] [2021-01-06 23:32:12,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:32:12,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:32:12,976 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 23:32:12,977 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675964552] [2021-01-06 23:32:12,977 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:32:12,977 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 23:32:12,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990110076] [2021-01-06 23:32:12,978 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:32:12,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:32:12,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:32:12,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:32:12,982 INFO L87 Difference]: Start difference. First operand 68 states and 144 transitions. Second operand 5 states. [2021-01-06 23:32:12,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:32:12,996 INFO L93 Difference]: Finished difference Result 56 states and 112 transitions. [2021-01-06 23:32:12,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 23:32:12,997 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2021-01-06 23:32:12,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:32:12,997 INFO L225 Difference]: With dead ends: 56 [2021-01-06 23:32:12,997 INFO L226 Difference]: Without dead ends: 0 [2021-01-06 23:32:12,998 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-01-06 23:32:12,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-01-06 23:32:12,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-01-06 23:32:12,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-01-06 23:32:12,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-01-06 23:32:13,000 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2021-01-06 23:32:13,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:32:13,002 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-01-06 23:32:13,002 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:32:13,002 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-01-06 23:32:13,003 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-06 23:32:13,003 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-06 23:32:13,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.01 11:32:13 BasicIcfg [2021-01-06 23:32:13,007 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-06 23:32:13,009 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-01-06 23:32:13,009 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-01-06 23:32:13,009 INFO L275 PluginConnector]: Witness Printer initialized [2021-01-06 23:32:13,009 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:32:07" (3/4) ... [2021-01-06 23:32:13,014 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-01-06 23:32:13,023 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2021-01-06 23:32:13,023 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2021-01-06 23:32:13,023 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2021-01-06 23:32:13,031 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-01-06 23:32:13,031 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-01-06 23:32:13,031 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-01-06 23:32:13,031 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-01-06 23:32:13,105 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/pthread-wmm/safe007_tso.opt.i-witness.graphml [2021-01-06 23:32:13,106 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-01-06 23:32:13,112 INFO L168 Benchmark]: Toolchain (without parser) took 6866.68 ms. Allocated memory was 170.9 MB in the beginning and 240.1 MB in the end (delta: 69.2 MB). Free memory was 143.5 MB in the beginning and 166.3 MB in the end (delta: -22.9 MB). Peak memory consumption was 47.9 MB. Max. memory is 8.0 GB. [2021-01-06 23:32:13,113 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 170.9 MB. Free memory is still 144.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 23:32:13,113 INFO L168 Benchmark]: CACSL2BoogieTranslator took 658.02 ms. Allocated memory is still 170.9 MB. Free memory was 143.5 MB in the beginning and 112.4 MB in the end (delta: 31.0 MB). Peak memory consumption was 31.5 MB. Max. memory is 8.0 GB. [2021-01-06 23:32:13,114 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.29 ms. Allocated memory is still 170.9 MB. Free memory was 112.4 MB in the beginning and 110.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-01-06 23:32:13,119 INFO L168 Benchmark]: Boogie Preprocessor took 30.91 ms. Allocated memory is still 170.9 MB. Free memory was 110.4 MB in the beginning and 109.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-01-06 23:32:13,120 INFO L168 Benchmark]: RCFGBuilder took 637.08 ms. Allocated memory is still 170.9 MB. Free memory was 109.1 MB in the beginning and 85.8 MB in the end (delta: 23.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2021-01-06 23:32:13,120 INFO L168 Benchmark]: TraceAbstraction took 5378.23 ms. Allocated memory was 170.9 MB in the beginning and 240.1 MB in the end (delta: 69.2 MB). Free memory was 85.5 MB in the beginning and 169.0 MB in the end (delta: -83.4 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 23:32:13,121 INFO L168 Benchmark]: Witness Printer took 97.15 ms. Allocated memory is still 240.1 MB. Free memory was 169.0 MB in the beginning and 166.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-01-06 23:32:13,128 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 170.9 MB. Free memory is still 144.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 658.02 ms. Allocated memory is still 170.9 MB. Free memory was 143.5 MB in the beginning and 112.4 MB in the end (delta: 31.0 MB). Peak memory consumption was 31.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 51.29 ms. Allocated memory is still 170.9 MB. Free memory was 112.4 MB in the beginning and 110.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 30.91 ms. Allocated memory is still 170.9 MB. Free memory was 110.4 MB in the beginning and 109.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 637.08 ms. Allocated memory is still 170.9 MB. Free memory was 109.1 MB in the beginning and 85.8 MB in the end (delta: 23.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5378.23 ms. Allocated memory was 170.9 MB in the beginning and 240.1 MB in the end (delta: 69.2 MB). Free memory was 85.5 MB in the beginning and 169.0 MB in the end (delta: -83.4 MB). There was no memory consumed. Max. memory is 8.0 GB. * Witness Printer took 97.15 ms. Allocated memory is still 240.1 MB. Free memory was 169.0 MB in the beginning and 166.3 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 856 VarBasedMoverChecksPositive, 38 VarBasedMoverChecksNegative, 9 SemBasedMoverChecksPositive, 29 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 64 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.8s, 84 PlacesBefore, 31 PlacesAfterwards, 76 TransitionsBefore, 21 TransitionsAfterwards, 1296 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 64 TotalNumberOfCompositions, 2541 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, 75 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.1s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.9s, HoareTripleCheckerStatistics: 107 SDtfs, 128 SDslu, 96 SDs, 0 SdLazy, 33 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 81 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 55 ConstructedInterpolants, 0 QuantifiedInterpolants, 2929 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...