/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_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 13:39:09,075 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 13:39:09,078 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 13:39:09,131 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 13:39:09,132 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 13:39:09,138 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 13:39:09,143 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 13:39:09,149 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 13:39:09,153 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 13:39:09,159 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 13:39:09,163 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 13:39:09,164 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 13:39:09,165 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 13:39:09,168 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 13:39:09,170 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 13:39:09,191 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 13:39:09,195 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 13:39:09,196 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 13:39:09,198 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 13:39:09,217 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 13:39:09,227 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 13:39:09,229 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 13:39:09,230 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 13:39:09,231 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 13:39:09,234 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 13:39:09,234 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 13:39:09,234 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 13:39:09,236 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 13:39:09,236 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 13:39:09,237 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 13:39:09,237 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 13:39:09,238 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 13:39:09,239 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 13:39:09,240 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 13:39:09,241 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 13:39:09,241 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 13:39:09,242 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 13:39:09,242 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 13:39:09,242 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 13:39:09,243 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 13:39:09,244 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 13:39:09,245 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-23 13:39:09,274 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 13:39:09,274 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 13:39:09,275 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 13:39:09,276 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 13:39:09,276 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 13:39:09,276 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 13:39:09,276 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 13:39:09,277 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 13:39:09,277 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 13:39:09,277 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 13:39:09,277 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 13:39:09,277 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 13:39:09,278 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 13:39:09,278 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 13:39:09,278 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 13:39:09,278 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 13:39:09,278 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 13:39:09,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 13:39:09,279 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 13:39:09,279 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 13:39:09,279 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 13:39:09,279 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 13:39:09,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 13:39:09,280 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 13:39:09,280 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 13:39:09,280 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 13:39:09,653 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 13:39:09,683 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 13:39:09,686 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 13:39:09,688 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 13:39:09,688 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 13:39:09,689 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe007_pso.oepc.i [2020-12-23 13:39:09,784 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/35a844cad/ff93e8ec2b9241abab5fe7a7b1f91d5d/FLAG1a64038e2 [2020-12-23 13:39:10,622 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 13:39:10,622 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe007_pso.oepc.i [2020-12-23 13:39:10,640 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/35a844cad/ff93e8ec2b9241abab5fe7a7b1f91d5d/FLAG1a64038e2 [2020-12-23 13:39:10,806 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/35a844cad/ff93e8ec2b9241abab5fe7a7b1f91d5d [2020-12-23 13:39:10,810 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 13:39:10,812 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 13:39:10,816 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 13:39:10,816 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 13:39:10,820 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 13:39:10,821 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:39:10" (1/1) ... [2020-12-23 13:39:10,822 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43fa4269 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:39:10, skipping insertion in model container [2020-12-23 13:39:10,823 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:39:10" (1/1) ... [2020-12-23 13:39:10,832 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 13:39:10,882 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-23 13:39:11,153 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_pso.oepc.i[950,963] 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$tmp_guard1~0,GLOBAL] [2020-12-23 13:39:11,350 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 13:39:11,361 INFO L203 MainTranslator]: Completed pre-run [2020-12-23 13:39:11,379 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe007_pso.oepc.i[950,963] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p0_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p1_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p2_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~z~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard1~0,GLOBAL] [2020-12-23 13:39:11,453 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 13:39:11,666 INFO L208 MainTranslator]: Completed translation [2020-12-23 13:39:11,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:39:11 WrapperNode [2020-12-23 13:39:11,667 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 13:39:11,668 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 13:39:11,669 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 13:39:11,669 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 13:39:11,679 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:39:11" (1/1) ... [2020-12-23 13:39:11,720 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:39:11" (1/1) ... [2020-12-23 13:39:11,769 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 13:39:11,774 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 13:39:11,774 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 13:39:11,774 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 13:39:11,787 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:39:11" (1/1) ... [2020-12-23 13:39:11,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:39:11" (1/1) ... [2020-12-23 13:39:11,806 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:39:11" (1/1) ... [2020-12-23 13:39:11,806 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:39:11" (1/1) ... [2020-12-23 13:39:11,824 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:39:11" (1/1) ... [2020-12-23 13:39:11,829 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:39:11" (1/1) ... [2020-12-23 13:39:11,835 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:39:11" (1/1) ... [2020-12-23 13:39:11,842 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 13:39:11,843 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 13:39:11,843 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 13:39:11,843 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 13:39:11,844 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:39:11" (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 [2020-12-23 13:39:11,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-23 13:39:11,974 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-23 13:39:11,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 13:39:11,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-23 13:39:11,975 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-23 13:39:11,975 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-23 13:39:11,976 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-23 13:39:11,976 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-23 13:39:11,976 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-23 13:39:11,977 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-23 13:39:11,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 13:39:11,979 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-23 13:39:11,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 13:39:11,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 13:39:11,981 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-23 13:39:12,544 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 13:39:12,545 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-23 13:39:12,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:39:12 BoogieIcfgContainer [2020-12-23 13:39:12,548 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 13:39:12,551 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 13:39:12,551 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 13:39:12,555 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 13:39:12,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 01:39:10" (1/3) ... [2020-12-23 13:39:12,557 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@276207ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:39:12, skipping insertion in model container [2020-12-23 13:39:12,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:39:11" (2/3) ... [2020-12-23 13:39:12,558 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@276207ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:39:12, skipping insertion in model container [2020-12-23 13:39:12,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:39:12" (3/3) ... [2020-12-23 13:39:12,560 INFO L111 eAbstractionObserver]: Analyzing ICFG safe007_pso.oepc.i [2020-12-23 13:39:12,572 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-23 13:39:12,573 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 13:39:12,579 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 13:39:12,580 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-23 13:39:12,631 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:12,631 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:12,632 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:12,632 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:12,633 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:12,633 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:12,633 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:12,633 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:12,634 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:12,634 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:12,634 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:12,635 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:12,636 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:12,636 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:12,636 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:12,637 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:12,637 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:12,637 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:12,637 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:12,638 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:12,638 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:12,638 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:12,638 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:12,639 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:12,641 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:12,641 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:12,641 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:12,642 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:12,643 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:12,644 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:12,647 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:12,648 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:12,648 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:12,648 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:12,649 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:12,649 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:12,652 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:12,653 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:12,653 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:12,654 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:12,665 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:12,665 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:12,666 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:12,666 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:12,669 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:12,669 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:12,670 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:12,670 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:39:12,672 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-23 13:39:12,693 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-23 13:39:12,732 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 13:39:12,732 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 13:39:12,732 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 13:39:12,733 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 13:39:12,733 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 13:39:12,734 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 13:39:12,734 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 13:39:12,734 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 13:39:12,753 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-23 13:39:12,755 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 76 transitions, 167 flow [2020-12-23 13:39:12,760 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 76 transitions, 167 flow [2020-12-23 13:39:12,762 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 76 transitions, 167 flow [2020-12-23 13:39:12,824 INFO L129 PetriNetUnfolder]: 2/73 cut-off events. [2020-12-23 13:39:12,824 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-12-23 13:39:12,828 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. [2020-12-23 13:39:12,832 INFO L116 LiptonReduction]: Number of co-enabled transitions 1296 [2020-12-23 13:39:16,015 WARN L197 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2020-12-23 13:39:16,135 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-12-23 13:39:16,394 WARN L197 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2020-12-23 13:39:16,504 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-12-23 13:39:16,819 INFO L131 LiptonReduction]: Checked pairs total: 2541 [2020-12-23 13:39:16,820 INFO L133 LiptonReduction]: Total number of compositions: 64 [2020-12-23 13:39:16,826 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2020-12-23 13:39:16,868 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-12-23 13:39:16,870 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-12-23 13:39:16,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-23 13:39:16,877 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:39:16,878 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:39:16,879 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:39:16,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:39:16,885 INFO L82 PathProgramCache]: Analyzing trace with hash 995547002, now seen corresponding path program 1 times [2020-12-23 13:39:16,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:39:16,896 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369100440] [2020-12-23 13:39:16,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:39:17,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:39:17,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:39:17,181 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369100440] [2020-12-23 13:39:17,182 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:39:17,182 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-23 13:39:17,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021447718] [2020-12-23 13:39:17,190 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 13:39:17,190 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:39:17,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 13:39:17,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 13:39:17,212 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-12-23 13:39:17,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:39:17,291 INFO L93 Difference]: Finished difference Result 360 states and 1001 transitions. [2020-12-23 13:39:17,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 13:39:17,293 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-12-23 13:39:17,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:39:17,318 INFO L225 Difference]: With dead ends: 360 [2020-12-23 13:39:17,318 INFO L226 Difference]: Without dead ends: 233 [2020-12-23 13:39:17,321 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 [2020-12-23 13:39:17,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2020-12-23 13:39:17,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2020-12-23 13:39:17,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-12-23 13:39:17,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 652 transitions. [2020-12-23 13:39:17,398 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 652 transitions. Word has length 8 [2020-12-23 13:39:17,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:39:17,400 INFO L481 AbstractCegarLoop]: Abstraction has 233 states and 652 transitions. [2020-12-23 13:39:17,400 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 13:39:17,400 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 652 transitions. [2020-12-23 13:39:17,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-23 13:39:17,402 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:39:17,402 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:39:17,402 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 13:39:17,402 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:39:17,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:39:17,403 INFO L82 PathProgramCache]: Analyzing trace with hash 755699245, now seen corresponding path program 1 times [2020-12-23 13:39:17,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:39:17,404 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886406020] [2020-12-23 13:39:17,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:39:17,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:39:17,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:39:17,514 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886406020] [2020-12-23 13:39:17,514 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:39:17,515 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 13:39:17,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460646546] [2020-12-23 13:39:17,516 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 13:39:17,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:39:17,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 13:39:17,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 13:39:17,518 INFO L87 Difference]: Start difference. First operand 233 states and 652 transitions. Second operand 4 states. [2020-12-23 13:39:17,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:39:17,557 INFO L93 Difference]: Finished difference Result 383 states and 1016 transitions. [2020-12-23 13:39:17,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 13:39:17,558 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-12-23 13:39:17,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:39:17,562 INFO L225 Difference]: With dead ends: 383 [2020-12-23 13:39:17,562 INFO L226 Difference]: Without dead ends: 329 [2020-12-23 13:39:17,563 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 [2020-12-23 13:39:17,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2020-12-23 13:39:17,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 284. [2020-12-23 13:39:17,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 284 states. [2020-12-23 13:39:17,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 779 transitions. [2020-12-23 13:39:17,618 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 779 transitions. Word has length 9 [2020-12-23 13:39:17,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:39:17,623 INFO L481 AbstractCegarLoop]: Abstraction has 284 states and 779 transitions. [2020-12-23 13:39:17,623 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 13:39:17,624 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 779 transitions. [2020-12-23 13:39:17,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-23 13:39:17,625 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:39:17,625 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:39:17,626 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 13:39:17,626 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:39:17,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:39:17,628 INFO L82 PathProgramCache]: Analyzing trace with hash 797195438, now seen corresponding path program 1 times [2020-12-23 13:39:17,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:39:17,629 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261904284] [2020-12-23 13:39:17,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:39:17,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:39:17,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:39:17,719 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261904284] [2020-12-23 13:39:17,720 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:39:17,720 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 13:39:17,720 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155953387] [2020-12-23 13:39:17,720 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 13:39:17,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:39:17,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 13:39:17,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 13:39:17,722 INFO L87 Difference]: Start difference. First operand 284 states and 779 transitions. Second operand 4 states. [2020-12-23 13:39:17,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:39:17,742 INFO L93 Difference]: Finished difference Result 269 states and 727 transitions. [2020-12-23 13:39:17,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 13:39:17,742 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-12-23 13:39:17,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:39:17,746 INFO L225 Difference]: With dead ends: 269 [2020-12-23 13:39:17,746 INFO L226 Difference]: Without dead ends: 269 [2020-12-23 13:39:17,747 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 [2020-12-23 13:39:17,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2020-12-23 13:39:17,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 269. [2020-12-23 13:39:17,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2020-12-23 13:39:17,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 727 transitions. [2020-12-23 13:39:17,791 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 727 transitions. Word has length 9 [2020-12-23 13:39:17,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:39:17,792 INFO L481 AbstractCegarLoop]: Abstraction has 269 states and 727 transitions. [2020-12-23 13:39:17,792 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 13:39:17,792 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 727 transitions. [2020-12-23 13:39:17,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-23 13:39:17,796 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:39:17,796 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:39:17,797 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 13:39:17,797 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:39:17,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:39:17,800 INFO L82 PathProgramCache]: Analyzing trace with hash 1951849563, now seen corresponding path program 1 times [2020-12-23 13:39:17,800 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:39:17,800 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16554871] [2020-12-23 13:39:17,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:39:17,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:39:17,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:39:17,870 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16554871] [2020-12-23 13:39:17,871 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:39:17,871 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 13:39:17,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283276213] [2020-12-23 13:39:17,875 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 13:39:17,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:39:17,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 13:39:17,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 13:39:17,877 INFO L87 Difference]: Start difference. First operand 269 states and 727 transitions. Second operand 4 states. [2020-12-23 13:39:17,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:39:17,906 INFO L93 Difference]: Finished difference Result 290 states and 749 transitions. [2020-12-23 13:39:17,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 13:39:17,907 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-12-23 13:39:17,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:39:17,910 INFO L225 Difference]: With dead ends: 290 [2020-12-23 13:39:17,910 INFO L226 Difference]: Without dead ends: 176 [2020-12-23 13:39:17,911 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 [2020-12-23 13:39:17,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2020-12-23 13:39:17,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 140. [2020-12-23 13:39:17,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-12-23 13:39:17,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 339 transitions. [2020-12-23 13:39:17,924 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 339 transitions. Word has length 10 [2020-12-23 13:39:17,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:39:17,924 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 339 transitions. [2020-12-23 13:39:17,924 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 13:39:17,925 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 339 transitions. [2020-12-23 13:39:17,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-23 13:39:17,927 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:39:17,927 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:39:17,928 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 13:39:17,932 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:39:17,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:39:17,933 INFO L82 PathProgramCache]: Analyzing trace with hash -1183830127, now seen corresponding path program 1 times [2020-12-23 13:39:17,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:39:17,934 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816700027] [2020-12-23 13:39:17,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:39:17,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:39:18,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:39:18,010 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816700027] [2020-12-23 13:39:18,010 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:39:18,011 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 13:39:18,011 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667902426] [2020-12-23 13:39:18,011 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 13:39:18,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:39:18,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 13:39:18,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 13:39:18,012 INFO L87 Difference]: Start difference. First operand 140 states and 339 transitions. Second operand 5 states. [2020-12-23 13:39:18,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:39:18,036 INFO L93 Difference]: Finished difference Result 158 states and 372 transitions. [2020-12-23 13:39:18,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 13:39:18,037 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-12-23 13:39:18,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:39:18,038 INFO L225 Difference]: With dead ends: 158 [2020-12-23 13:39:18,038 INFO L226 Difference]: Without dead ends: 68 [2020-12-23 13:39:18,038 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 [2020-12-23 13:39:18,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-12-23 13:39:18,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-12-23 13:39:18,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-12-23 13:39:18,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 144 transitions. [2020-12-23 13:39:18,041 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 144 transitions. Word has length 12 [2020-12-23 13:39:18,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:39:18,042 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 144 transitions. [2020-12-23 13:39:18,042 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 13:39:18,042 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 144 transitions. [2020-12-23 13:39:18,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-23 13:39:18,043 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:39:18,043 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:39:18,043 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-23 13:39:18,043 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:39:18,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:39:18,044 INFO L82 PathProgramCache]: Analyzing trace with hash -936336033, now seen corresponding path program 1 times [2020-12-23 13:39:18,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:39:18,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6605599] [2020-12-23 13:39:18,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:39:18,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:39:18,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:39:18,116 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6605599] [2020-12-23 13:39:18,116 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:39:18,116 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 13:39:18,116 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647603348] [2020-12-23 13:39:18,117 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 13:39:18,117 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:39:18,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 13:39:18,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 13:39:18,123 INFO L87 Difference]: Start difference. First operand 68 states and 144 transitions. Second operand 5 states. [2020-12-23 13:39:18,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:39:18,138 INFO L93 Difference]: Finished difference Result 56 states and 112 transitions. [2020-12-23 13:39:18,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 13:39:18,139 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-12-23 13:39:18,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:39:18,139 INFO L225 Difference]: With dead ends: 56 [2020-12-23 13:39:18,139 INFO L226 Difference]: Without dead ends: 0 [2020-12-23 13:39:18,140 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 [2020-12-23 13:39:18,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-23 13:39:18,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-23 13:39:18,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-23 13:39:18,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-23 13:39:18,141 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-12-23 13:39:18,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:39:18,141 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-23 13:39:18,141 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 13:39:18,141 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-23 13:39:18,141 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-23 13:39:18,142 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-23 13:39:18,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 01:39:18 BasicIcfg [2020-12-23 13:39:18,146 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-23 13:39:18,147 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-23 13:39:18,147 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-23 13:39:18,148 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-23 13:39:18,148 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:39:12" (3/4) ... [2020-12-23 13:39:18,153 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-23 13:39:18,160 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-12-23 13:39:18,160 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-12-23 13:39:18,160 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-12-23 13:39:18,168 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-12-23 13:39:18,168 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-23 13:39:18,169 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-23 13:39:18,169 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-23 13:39:18,235 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/pthread-wmm/safe007_pso.oepc.i-witness.graphml [2020-12-23 13:39:18,235 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-23 13:39:18,240 INFO L168 Benchmark]: Toolchain (without parser) took 7424.80 ms. Allocated memory was 154.1 MB in the beginning and 231.7 MB in the end (delta: 77.6 MB). Free memory was 127.6 MB in the beginning and 122.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 83.1 MB. Max. memory is 8.0 GB. [2020-12-23 13:39:18,241 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 154.1 MB. Free memory is still 126.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 13:39:18,246 INFO L168 Benchmark]: CACSL2BoogieTranslator took 851.46 ms. Allocated memory is still 154.1 MB. Free memory was 127.4 MB in the beginning and 131.3 MB in the end (delta: -3.9 MB). Peak memory consumption was 30.5 MB. Max. memory is 8.0 GB. [2020-12-23 13:39:18,250 INFO L168 Benchmark]: Boogie Procedure Inliner took 101.84 ms. Allocated memory is still 154.1 MB. Free memory was 131.3 MB in the beginning and 129.7 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 13:39:18,251 INFO L168 Benchmark]: Boogie Preprocessor took 68.60 ms. Allocated memory is still 154.1 MB. Free memory was 129.2 MB in the beginning and 128.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 13:39:18,251 INFO L168 Benchmark]: RCFGBuilder took 705.25 ms. Allocated memory is still 154.1 MB. Free memory was 128.2 MB in the beginning and 106.1 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-12-23 13:39:18,252 INFO L168 Benchmark]: TraceAbstraction took 5594.68 ms. Allocated memory was 154.1 MB in the beginning and 231.7 MB in the end (delta: 77.6 MB). Free memory was 105.6 MB in the beginning and 124.8 MB in the end (delta: -19.2 MB). Peak memory consumption was 60.0 MB. Max. memory is 8.0 GB. [2020-12-23 13:39:18,253 INFO L168 Benchmark]: Witness Printer took 88.21 ms. Allocated memory is still 231.7 MB. Free memory was 124.8 MB in the beginning and 122.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-23 13:39:18,256 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 154.1 MB. Free memory is still 126.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 851.46 ms. Allocated memory is still 154.1 MB. Free memory was 127.4 MB in the beginning and 131.3 MB in the end (delta: -3.9 MB). Peak memory consumption was 30.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 101.84 ms. Allocated memory is still 154.1 MB. Free memory was 131.3 MB in the beginning and 129.7 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Preprocessor took 68.60 ms. Allocated memory is still 154.1 MB. Free memory was 129.2 MB in the beginning and 128.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 705.25 ms. Allocated memory is still 154.1 MB. Free memory was 128.2 MB in the beginning and 106.1 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5594.68 ms. Allocated memory was 154.1 MB in the beginning and 231.7 MB in the end (delta: 77.6 MB). Free memory was 105.6 MB in the beginning and 124.8 MB in the end (delta: -19.2 MB). Peak memory consumption was 60.0 MB. Max. memory is 8.0 GB. * Witness Printer took 88.21 ms. Allocated memory is still 231.7 MB. Free memory was 124.8 MB in the beginning and 122.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 856 VarBasedMoverChecksPositive, 38 VarBasedMoverChecksNegative, 9 SemBasedMoverChecksPositive, 29 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 64 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.0s, 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: 5.4s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.1s, 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, 0.1s 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, 0.3s 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...