/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/safe011_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 23:33:07,174 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 23:33:07,177 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 23:33:07,218 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 23:33:07,219 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 23:33:07,221 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 23:33:07,223 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 23:33:07,226 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 23:33:07,228 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 23:33:07,229 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 23:33:07,231 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 23:33:07,232 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 23:33:07,233 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 23:33:07,234 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 23:33:07,236 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 23:33:07,237 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 23:33:07,238 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 23:33:07,251 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 23:33:07,255 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 23:33:07,261 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 23:33:07,266 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 23:33:07,270 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 23:33:07,273 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 23:33:07,275 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 23:33:07,284 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-06 23:33:07,285 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-06 23:33:07,285 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-06 23:33:07,289 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-06 23:33:07,290 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-06 23:33:07,293 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-06 23:33:07,294 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-06 23:33:07,295 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-06 23:33:07,296 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-06 23:33:07,300 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-06 23:33:07,302 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-06 23:33:07,303 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-06 23:33:07,304 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-06 23:33:07,305 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-06 23:33:07,305 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 23:33:07,306 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 23:33:07,307 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 23:33:07,310 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 23:33:07,341 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 23:33:07,341 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 23:33:07,343 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 23:33:07,344 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 23:33:07,344 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 23:33:07,344 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 23:33:07,344 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 23:33:07,345 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 23:33:07,345 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 23:33:07,345 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 23:33:07,345 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 23:33:07,345 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 23:33:07,346 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 23:33:07,346 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 23:33:07,346 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 23:33:07,346 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 23:33:07,347 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 23:33:07,347 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 23:33:07,347 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 23:33:07,347 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 23:33:07,348 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 23:33:07,348 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 23:33:07,348 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 23:33:07,348 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 23:33:07,349 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 23:33:07,349 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 23:33:07,776 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 23:33:07,818 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 23:33:07,822 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 23:33:07,824 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 23:33:07,825 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 23:33:07,826 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe011_tso.oepc.i [2021-01-06 23:33:07,918 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/e56ad6f32/f628ee854e1a4928a820d1d50ab79634/FLAG014dda067 [2021-01-06 23:33:08,647 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 23:33:08,650 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe011_tso.oepc.i [2021-01-06 23:33:08,679 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/e56ad6f32/f628ee854e1a4928a820d1d50ab79634/FLAG014dda067 [2021-01-06 23:33:08,921 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/e56ad6f32/f628ee854e1a4928a820d1d50ab79634 [2021-01-06 23:33:08,924 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 23:33:08,927 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 23:33:08,931 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 23:33:08,931 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 23:33:08,935 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 23:33:08,936 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 11:33:08" (1/1) ... [2021-01-06 23:33:08,938 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21ccb94d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:33:08, skipping insertion in model container [2021-01-06 23:33:08,938 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 11:33:08" (1/1) ... [2021-01-06 23:33:08,952 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 23:33:09,019 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-06 23:33:09,223 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/safe011_tso.oepc.i[950,963] left hand side expression in assignment: lhs: VariableLHS[~z~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__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$tmp_guard1~0,GLOBAL] [2021-01-06 23:33:09,425 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 23:33:09,438 INFO L203 MainTranslator]: Completed pre-run [2021-01-06 23:33:09,454 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe011_tso.oepc.i[950,963] left hand side expression in assignment: lhs: VariableLHS[~z~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p2_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~z~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard1~0,GLOBAL] [2021-01-06 23:33:09,487 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 23:33:09,608 INFO L208 MainTranslator]: Completed translation [2021-01-06 23:33:09,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:33:09 WrapperNode [2021-01-06 23:33:09,609 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 23:33:09,611 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 23:33:09,611 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 23:33:09,611 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 23:33:09,620 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:33:09" (1/1) ... [2021-01-06 23:33:09,638 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:33:09" (1/1) ... [2021-01-06 23:33:09,663 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 23:33:09,664 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 23:33:09,664 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 23:33:09,664 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 23:33:09,675 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:33:09" (1/1) ... [2021-01-06 23:33:09,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:33:09" (1/1) ... [2021-01-06 23:33:09,679 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:33:09" (1/1) ... [2021-01-06 23:33:09,679 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:33:09" (1/1) ... [2021-01-06 23:33:09,686 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:33:09" (1/1) ... [2021-01-06 23:33:09,688 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:33:09" (1/1) ... [2021-01-06 23:33:09,691 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:33:09" (1/1) ... [2021-01-06 23:33:09,694 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 23:33:09,696 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 23:33:09,696 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 23:33:09,696 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 23:33:09,697 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:33:09" (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 23:33:09,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-06 23:33:09,804 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-06 23:33:09,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 23:33:09,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-06 23:33:09,805 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-06 23:33:09,805 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-06 23:33:09,805 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-06 23:33:09,805 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-06 23:33:09,805 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-01-06 23:33:09,806 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-01-06 23:33:09,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 23:33:09,806 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-06 23:33:09,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 23:33:09,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 23:33:09,808 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 23:33:10,354 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 23:33:10,354 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-01-06 23:33:10,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:33:10 BoogieIcfgContainer [2021-01-06 23:33:10,357 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 23:33:10,358 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 23:33:10,359 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 23:33:10,362 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 23:33:10,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 11:33:08" (1/3) ... [2021-01-06 23:33:10,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a075f3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 11:33:10, skipping insertion in model container [2021-01-06 23:33:10,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:33:09" (2/3) ... [2021-01-06 23:33:10,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a075f3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 11:33:10, skipping insertion in model container [2021-01-06 23:33:10,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:33:10" (3/3) ... [2021-01-06 23:33:10,366 INFO L111 eAbstractionObserver]: Analyzing ICFG safe011_tso.oepc.i [2021-01-06 23:33:10,373 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-06 23:33:10,373 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 23:33:10,378 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-06 23:33:10,379 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-06 23:33:10,415 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:33:10,415 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:33:10,415 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:33:10,415 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:33:10,416 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:33:10,416 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:33:10,416 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:33:10,416 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:33:10,417 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:33:10,417 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:33:10,417 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:33:10,417 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:33:10,418 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:33:10,418 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:33:10,418 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:33:10,418 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:33:10,419 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:33:10,419 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:33:10,419 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:33:10,419 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:33:10,420 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:33:10,420 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:33:10,420 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:33:10,420 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:33:10,421 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:33:10,421 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:33:10,421 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:33:10,421 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:33:10,421 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:33:10,422 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:33:10,422 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:33:10,422 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:33:10,423 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:33:10,423 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:33:10,423 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:33:10,423 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:33:10,425 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:33:10,426 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:33:10,426 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:33:10,426 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:33:10,432 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:33:10,432 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:33:10,432 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:33:10,433 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:33:10,435 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:33:10,436 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:33:10,436 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:33:10,436 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:33:10,439 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-06 23:33:10,458 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-01-06 23:33:10,481 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 23:33:10,482 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 23:33:10,482 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 23:33:10,482 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 23:33:10,482 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 23:33:10,482 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 23:33:10,482 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 23:33:10,483 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 23:33:10,496 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-01-06 23:33:10,499 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 74 transitions, 163 flow [2021-01-06 23:33:10,506 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 74 transitions, 163 flow [2021-01-06 23:33:10,508 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 74 transitions, 163 flow [2021-01-06 23:33:10,555 INFO L129 PetriNetUnfolder]: 2/71 cut-off events. [2021-01-06 23:33:10,555 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-01-06 23:33:10,560 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 71 events. 2/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-01-06 23:33:10,563 INFO L116 LiptonReduction]: Number of co-enabled transitions 1296 [2021-01-06 23:33:13,827 WARN L197 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2021-01-06 23:33:13,932 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-01-06 23:33:14,154 WARN L197 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2021-01-06 23:33:14,263 INFO L131 LiptonReduction]: Checked pairs total: 2448 [2021-01-06 23:33:14,263 INFO L133 LiptonReduction]: Total number of compositions: 61 [2021-01-06 23:33:14,271 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2021-01-06 23:33:14,302 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2021-01-06 23:33:14,304 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2021-01-06 23:33:14,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-01-06 23:33:14,312 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:33:14,313 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:33:14,313 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:33:14,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:33:14,320 INFO L82 PathProgramCache]: Analyzing trace with hash 70130421, now seen corresponding path program 1 times [2021-01-06 23:33:14,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:33:14,330 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055821168] [2021-01-06 23:33:14,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:33:14,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:33:14,517 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 23:33:14,517 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055821168] [2021-01-06 23:33:14,521 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:33:14,521 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 23:33:14,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194691390] [2021-01-06 23:33:14,529 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-01-06 23:33:14,529 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:33:14,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-01-06 23:33:14,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-06 23:33:14,546 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2021-01-06 23:33:14,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:33:14,585 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2021-01-06 23:33:14,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-01-06 23:33:14,587 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2021-01-06 23:33:14,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:33:14,607 INFO L225 Difference]: With dead ends: 362 [2021-01-06 23:33:14,608 INFO L226 Difference]: Without dead ends: 298 [2021-01-06 23:33:14,609 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-06 23:33:14,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2021-01-06 23:33:14,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2021-01-06 23:33:14,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2021-01-06 23:33:14,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2021-01-06 23:33:14,721 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2021-01-06 23:33:14,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:33:14,724 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2021-01-06 23:33:14,724 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-01-06 23:33:14,724 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2021-01-06 23:33:14,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-01-06 23:33:14,728 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:33:14,728 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:33:14,728 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 23:33:14,729 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:33:14,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:33:14,730 INFO L82 PathProgramCache]: Analyzing trace with hash -2120938041, now seen corresponding path program 1 times [2021-01-06 23:33:14,731 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:33:14,731 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67578223] [2021-01-06 23:33:14,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:33:14,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:33:15,003 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 23:33:15,005 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67578223] [2021-01-06 23:33:15,005 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:33:15,005 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 23:33:15,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846469284] [2021-01-06 23:33:15,007 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 23:33:15,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:33:15,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 23:33:15,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 23:33:15,010 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2021-01-06 23:33:15,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:33:15,092 INFO L93 Difference]: Finished difference Result 572 states and 1557 transitions. [2021-01-06 23:33:15,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 23:33:15,093 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2021-01-06 23:33:15,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:33:15,099 INFO L225 Difference]: With dead ends: 572 [2021-01-06 23:33:15,099 INFO L226 Difference]: Without dead ends: 420 [2021-01-06 23:33:15,100 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 23:33:15,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2021-01-06 23:33:15,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 340. [2021-01-06 23:33:15,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2021-01-06 23:33:15,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 926 transitions. [2021-01-06 23:33:15,175 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 926 transitions. Word has length 9 [2021-01-06 23:33:15,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:33:15,175 INFO L481 AbstractCegarLoop]: Abstraction has 340 states and 926 transitions. [2021-01-06 23:33:15,175 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 23:33:15,175 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 926 transitions. [2021-01-06 23:33:15,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-01-06 23:33:15,177 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:33:15,178 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:33:15,178 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-06 23:33:15,178 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:33:15,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:33:15,179 INFO L82 PathProgramCache]: Analyzing trace with hash -1222306100, now seen corresponding path program 1 times [2021-01-06 23:33:15,179 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:33:15,180 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488482502] [2021-01-06 23:33:15,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:33:15,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:33:15,310 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 23:33:15,311 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488482502] [2021-01-06 23:33:15,311 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:33:15,311 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 23:33:15,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849786879] [2021-01-06 23:33:15,312 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:33:15,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:33:15,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:33:15,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:33:15,314 INFO L87 Difference]: Start difference. First operand 340 states and 926 transitions. Second operand 5 states. [2021-01-06 23:33:15,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:33:15,380 INFO L93 Difference]: Finished difference Result 464 states and 1193 transitions. [2021-01-06 23:33:15,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-06 23:33:15,381 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2021-01-06 23:33:15,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:33:15,384 INFO L225 Difference]: With dead ends: 464 [2021-01-06 23:33:15,385 INFO L226 Difference]: Without dead ends: 378 [2021-01-06 23:33:15,385 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-01-06 23:33:15,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2021-01-06 23:33:15,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 286. [2021-01-06 23:33:15,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2021-01-06 23:33:15,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 766 transitions. [2021-01-06 23:33:15,403 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 766 transitions. Word has length 10 [2021-01-06 23:33:15,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:33:15,404 INFO L481 AbstractCegarLoop]: Abstraction has 286 states and 766 transitions. [2021-01-06 23:33:15,404 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:33:15,404 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 766 transitions. [2021-01-06 23:33:15,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-01-06 23:33:15,406 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:33:15,406 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:33:15,406 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-06 23:33:15,406 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:33:15,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:33:15,407 INFO L82 PathProgramCache]: Analyzing trace with hash -1325562886, now seen corresponding path program 1 times [2021-01-06 23:33:15,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:33:15,408 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664385515] [2021-01-06 23:33:15,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:33:15,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:33:15,482 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 23:33:15,483 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664385515] [2021-01-06 23:33:15,483 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:33:15,483 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 23:33:15,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909149113] [2021-01-06 23:33:15,484 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:33:15,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:33:15,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:33:15,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:33:15,485 INFO L87 Difference]: Start difference. First operand 286 states and 766 transitions. Second operand 5 states. [2021-01-06 23:33:15,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:33:15,549 INFO L93 Difference]: Finished difference Result 436 states and 1097 transitions. [2021-01-06 23:33:15,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-06 23:33:15,550 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2021-01-06 23:33:15,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:33:15,553 INFO L225 Difference]: With dead ends: 436 [2021-01-06 23:33:15,553 INFO L226 Difference]: Without dead ends: 358 [2021-01-06 23:33:15,554 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-01-06 23:33:15,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2021-01-06 23:33:15,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 270. [2021-01-06 23:33:15,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2021-01-06 23:33:15,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 712 transitions. [2021-01-06 23:33:15,568 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 712 transitions. Word has length 10 [2021-01-06 23:33:15,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:33:15,568 INFO L481 AbstractCegarLoop]: Abstraction has 270 states and 712 transitions. [2021-01-06 23:33:15,569 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:33:15,569 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 712 transitions. [2021-01-06 23:33:15,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-01-06 23:33:15,570 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:33:15,571 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:33:15,571 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-06 23:33:15,571 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:33:15,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:33:15,572 INFO L82 PathProgramCache]: Analyzing trace with hash 1857187595, now seen corresponding path program 1 times [2021-01-06 23:33:15,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:33:15,573 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464538467] [2021-01-06 23:33:15,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:33:15,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:33:15,647 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 23:33:15,647 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464538467] [2021-01-06 23:33:15,648 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:33:15,648 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 23:33:15,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32749432] [2021-01-06 23:33:15,649 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:33:15,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:33:15,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:33:15,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:33:15,650 INFO L87 Difference]: Start difference. First operand 270 states and 712 transitions. Second operand 5 states. [2021-01-06 23:33:15,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:33:15,708 INFO L93 Difference]: Finished difference Result 382 states and 967 transitions. [2021-01-06 23:33:15,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-06 23:33:15,709 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2021-01-06 23:33:15,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:33:15,712 INFO L225 Difference]: With dead ends: 382 [2021-01-06 23:33:15,712 INFO L226 Difference]: Without dead ends: 340 [2021-01-06 23:33:15,713 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-01-06 23:33:15,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2021-01-06 23:33:15,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 264. [2021-01-06 23:33:15,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2021-01-06 23:33:15,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 690 transitions. [2021-01-06 23:33:15,727 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 690 transitions. Word has length 11 [2021-01-06 23:33:15,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:33:15,727 INFO L481 AbstractCegarLoop]: Abstraction has 264 states and 690 transitions. [2021-01-06 23:33:15,727 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:33:15,727 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 690 transitions. [2021-01-06 23:33:15,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-01-06 23:33:15,729 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:33:15,729 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:33:15,729 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-06 23:33:15,729 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:33:15,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:33:15,730 INFO L82 PathProgramCache]: Analyzing trace with hash 575547449, now seen corresponding path program 1 times [2021-01-06 23:33:15,730 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:33:15,731 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987255756] [2021-01-06 23:33:15,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:33:15,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:33:15,797 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 23:33:15,797 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987255756] [2021-01-06 23:33:15,797 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:33:15,798 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 23:33:15,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289897875] [2021-01-06 23:33:15,798 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:33:15,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:33:15,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:33:15,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:33:15,800 INFO L87 Difference]: Start difference. First operand 264 states and 690 transitions. Second operand 5 states. [2021-01-06 23:33:15,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:33:15,848 INFO L93 Difference]: Finished difference Result 418 states and 1021 transitions. [2021-01-06 23:33:15,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-06 23:33:15,848 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2021-01-06 23:33:15,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:33:15,851 INFO L225 Difference]: With dead ends: 418 [2021-01-06 23:33:15,852 INFO L226 Difference]: Without dead ends: 328 [2021-01-06 23:33:15,852 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-01-06 23:33:15,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2021-01-06 23:33:15,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 248. [2021-01-06 23:33:15,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 248 states. [2021-01-06 23:33:15,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 632 transitions. [2021-01-06 23:33:15,866 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 632 transitions. Word has length 12 [2021-01-06 23:33:15,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:33:15,866 INFO L481 AbstractCegarLoop]: Abstraction has 248 states and 632 transitions. [2021-01-06 23:33:15,867 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:33:15,867 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 632 transitions. [2021-01-06 23:33:15,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-01-06 23:33:15,868 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:33:15,868 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:33:15,868 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-06 23:33:15,868 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:33:15,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:33:15,869 INFO L82 PathProgramCache]: Analyzing trace with hash -2140910896, now seen corresponding path program 1 times [2021-01-06 23:33:15,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:33:15,870 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022993214] [2021-01-06 23:33:15,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:33:15,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:33:15,936 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 23:33:15,937 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022993214] [2021-01-06 23:33:15,937 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:33:15,937 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 23:33:15,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590355482] [2021-01-06 23:33:15,938 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 23:33:15,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:33:15,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 23:33:15,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-01-06 23:33:15,939 INFO L87 Difference]: Start difference. First operand 248 states and 632 transitions. Second operand 6 states. [2021-01-06 23:33:15,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:33:15,992 INFO L93 Difference]: Finished difference Result 299 states and 726 transitions. [2021-01-06 23:33:15,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-06 23:33:15,992 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2021-01-06 23:33:15,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:33:15,994 INFO L225 Difference]: With dead ends: 299 [2021-01-06 23:33:15,994 INFO L226 Difference]: Without dead ends: 158 [2021-01-06 23:33:15,995 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-01-06 23:33:15,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2021-01-06 23:33:16,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 142. [2021-01-06 23:33:16,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2021-01-06 23:33:16,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 318 transitions. [2021-01-06 23:33:16,015 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 318 transitions. Word has length 12 [2021-01-06 23:33:16,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:33:16,016 INFO L481 AbstractCegarLoop]: Abstraction has 142 states and 318 transitions. [2021-01-06 23:33:16,016 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 23:33:16,016 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 318 transitions. [2021-01-06 23:33:16,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-01-06 23:33:16,017 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:33:16,017 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:33:16,017 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-06 23:33:16,017 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:33:16,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:33:16,018 INFO L82 PathProgramCache]: Analyzing trace with hash -1024807024, now seen corresponding path program 1 times [2021-01-06 23:33:16,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:33:16,018 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484302081] [2021-01-06 23:33:16,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:33:16,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:33:16,076 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 23:33:16,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484302081] [2021-01-06 23:33:16,080 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:33:16,080 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 23:33:16,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357116626] [2021-01-06 23:33:16,081 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 23:33:16,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:33:16,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 23:33:16,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 23:33:16,082 INFO L87 Difference]: Start difference. First operand 142 states and 318 transitions. Second operand 4 states. [2021-01-06 23:33:16,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:33:16,115 INFO L93 Difference]: Finished difference Result 152 states and 308 transitions. [2021-01-06 23:33:16,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 23:33:16,119 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2021-01-06 23:33:16,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:33:16,120 INFO L225 Difference]: With dead ends: 152 [2021-01-06 23:33:16,120 INFO L226 Difference]: Without dead ends: 120 [2021-01-06 23:33:16,120 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:33:16,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2021-01-06 23:33:16,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2021-01-06 23:33:16,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2021-01-06 23:33:16,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 243 transitions. [2021-01-06 23:33:16,129 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 243 transitions. Word has length 13 [2021-01-06 23:33:16,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:33:16,129 INFO L481 AbstractCegarLoop]: Abstraction has 120 states and 243 transitions. [2021-01-06 23:33:16,130 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 23:33:16,130 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 243 transitions. [2021-01-06 23:33:16,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-01-06 23:33:16,130 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:33:16,130 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:33:16,131 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-06 23:33:16,131 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:33:16,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:33:16,131 INFO L82 PathProgramCache]: Analyzing trace with hash -704924573, now seen corresponding path program 1 times [2021-01-06 23:33:16,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:33:16,137 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588693921] [2021-01-06 23:33:16,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:33:16,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:33:16,245 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 23:33:16,245 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588693921] [2021-01-06 23:33:16,245 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:33:16,246 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 23:33:16,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814102307] [2021-01-06 23:33:16,248 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:33:16,248 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:33:16,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:33:16,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:33:16,250 INFO L87 Difference]: Start difference. First operand 120 states and 243 transitions. Second operand 5 states. [2021-01-06 23:33:16,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:33:16,292 INFO L93 Difference]: Finished difference Result 106 states and 197 transitions. [2021-01-06 23:33:16,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 23:33:16,292 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2021-01-06 23:33:16,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:33:16,293 INFO L225 Difference]: With dead ends: 106 [2021-01-06 23:33:16,294 INFO L226 Difference]: Without dead ends: 77 [2021-01-06 23:33:16,294 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-01-06 23:33:16,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-01-06 23:33:16,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2021-01-06 23:33:16,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2021-01-06 23:33:16,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 133 transitions. [2021-01-06 23:33:16,298 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 133 transitions. Word has length 14 [2021-01-06 23:33:16,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:33:16,298 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 133 transitions. [2021-01-06 23:33:16,298 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:33:16,298 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 133 transitions. [2021-01-06 23:33:16,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-01-06 23:33:16,299 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:33:16,299 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:33:16,299 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-06 23:33:16,300 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:33:16,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:33:16,300 INFO L82 PathProgramCache]: Analyzing trace with hash -237179704, now seen corresponding path program 1 times [2021-01-06 23:33:16,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:33:16,302 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319984378] [2021-01-06 23:33:16,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:33:16,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:33:16,392 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 23:33:16,392 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319984378] [2021-01-06 23:33:16,393 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:33:16,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 23:33:16,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123630510] [2021-01-06 23:33:16,394 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 23:33:16,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:33:16,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 23:33:16,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-01-06 23:33:16,396 INFO L87 Difference]: Start difference. First operand 77 states and 133 transitions. Second operand 6 states. [2021-01-06 23:33:16,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:33:16,428 INFO L93 Difference]: Finished difference Result 67 states and 118 transitions. [2021-01-06 23:33:16,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 23:33:16,429 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2021-01-06 23:33:16,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:33:16,429 INFO L225 Difference]: With dead ends: 67 [2021-01-06 23:33:16,429 INFO L226 Difference]: Without dead ends: 0 [2021-01-06 23:33:16,430 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-01-06 23:33:16,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-01-06 23:33:16,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-01-06 23:33:16,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-01-06 23:33:16,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-01-06 23:33:16,431 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2021-01-06 23:33:16,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:33:16,431 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-01-06 23:33:16,431 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 23:33:16,431 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-01-06 23:33:16,431 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-06 23:33:16,432 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-01-06 23:33:16,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.01 11:33:16 BasicIcfg [2021-01-06 23:33:16,436 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-06 23:33:16,437 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-01-06 23:33:16,437 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-01-06 23:33:16,437 INFO L275 PluginConnector]: Witness Printer initialized [2021-01-06 23:33:16,438 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:33:10" (3/4) ... [2021-01-06 23:33:16,443 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-01-06 23:33:16,452 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2021-01-06 23:33:16,452 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2021-01-06 23:33:16,453 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2021-01-06 23:33:16,460 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-01-06 23:33:16,461 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-01-06 23:33:16,461 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-01-06 23:33:16,461 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-01-06 23:33:16,529 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/pthread-wmm/safe011_tso.oepc.i-witness.graphml [2021-01-06 23:33:16,529 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-01-06 23:33:16,531 INFO L168 Benchmark]: Toolchain (without parser) took 7603.18 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 125.4 MB in the beginning and 111.7 MB in the end (delta: 13.7 MB). Peak memory consumption was 45.7 MB. Max. memory is 8.0 GB. [2021-01-06 23:33:16,536 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 151.0 MB. Free memory is still 123.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 23:33:16,536 INFO L168 Benchmark]: CACSL2BoogieTranslator took 678.99 ms. Allocated memory is still 151.0 MB. Free memory was 125.2 MB in the beginning and 126.4 MB in the end (delta: -1.2 MB). Peak memory consumption was 28.3 MB. Max. memory is 8.0 GB. [2021-01-06 23:33:16,538 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.64 ms. Allocated memory is still 151.0 MB. Free memory was 126.4 MB in the beginning and 124.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-01-06 23:33:16,539 INFO L168 Benchmark]: Boogie Preprocessor took 30.80 ms. Allocated memory is still 151.0 MB. Free memory was 124.4 MB in the beginning and 123.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-01-06 23:33:16,539 INFO L168 Benchmark]: RCFGBuilder took 661.20 ms. Allocated memory is still 151.0 MB. Free memory was 123.3 MB in the beginning and 101.3 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2021-01-06 23:33:16,540 INFO L168 Benchmark]: TraceAbstraction took 6077.66 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 100.8 MB in the beginning and 114.3 MB in the end (delta: -13.5 MB). Peak memory consumption was 17.4 MB. Max. memory is 8.0 GB. [2021-01-06 23:33:16,540 INFO L168 Benchmark]: Witness Printer took 92.24 ms. Allocated memory is still 181.4 MB. Free memory was 114.3 MB in the beginning and 111.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-01-06 23:33:16,543 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 151.0 MB. Free memory is still 123.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 678.99 ms. Allocated memory is still 151.0 MB. Free memory was 125.2 MB in the beginning and 126.4 MB in the end (delta: -1.2 MB). Peak memory consumption was 28.3 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 52.64 ms. Allocated memory is still 151.0 MB. Free memory was 126.4 MB in the beginning and 124.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 30.80 ms. Allocated memory is still 151.0 MB. Free memory was 124.4 MB in the beginning and 123.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 661.20 ms. Allocated memory is still 151.0 MB. Free memory was 123.3 MB in the beginning and 101.3 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6077.66 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 100.8 MB in the beginning and 114.3 MB in the end (delta: -13.5 MB). Peak memory consumption was 17.4 MB. Max. memory is 8.0 GB. * Witness Printer took 92.24 ms. Allocated memory is still 181.4 MB. Free memory was 114.3 MB in the beginning and 111.7 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 815 VarBasedMoverChecksPositive, 33 VarBasedMoverChecksNegative, 8 SemBasedMoverChecksPositive, 25 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 71 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.7s, 82 PlacesBefore, 32 PlacesAfterwards, 74 TransitionsBefore, 23 TransitionsAfterwards, 1296 CoEnabledTransitionPairs, 5 FixpointIterations, 17 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 61 TotalNumberOfCompositions, 2448 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, 73 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.9s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.8s, HoareTripleCheckerStatistics: 256 SDtfs, 270 SDslu, 436 SDs, 0 SdLazy, 155 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 432 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 115 NumberOfCodeBlocks, 115 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 105 ConstructedInterpolants, 0 QuantifiedInterpolants, 5235 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...