/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/safe019_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 23:35:33,395 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 23:35:33,398 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 23:35:33,448 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 23:35:33,449 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 23:35:33,452 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 23:35:33,456 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 23:35:33,462 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 23:35:33,465 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 23:35:33,473 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 23:35:33,475 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 23:35:33,476 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 23:35:33,477 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 23:35:33,478 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 23:35:33,479 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 23:35:33,480 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 23:35:33,481 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 23:35:33,483 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 23:35:33,485 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 23:35:33,487 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 23:35:33,489 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 23:35:33,490 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 23:35:33,492 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 23:35:33,505 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 23:35:33,512 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-06 23:35:33,517 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-06 23:35:33,518 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-06 23:35:33,519 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-06 23:35:33,522 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-06 23:35:33,524 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-06 23:35:33,524 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-06 23:35:33,525 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-06 23:35:33,525 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-06 23:35:33,525 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 23:35:33,527 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 23:35:33,527 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 23:35:33,529 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 23:35:33,564 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 23:35:33,566 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 23:35:33,569 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 23:35:33,569 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 23:35:33,569 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 23:35:33,570 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 23:35:33,570 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 23:35:33,571 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 23:35:33,572 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 23:35:33,572 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 23:35:33,572 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 23:35:33,572 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 23:35:33,573 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 23:35:33,573 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 23:35:33,574 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 23:35:33,574 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 23:35:33,574 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 23:35:33,575 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 23:35:33,575 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 23:35:33,575 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 23:35:33,575 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 23:35:33,576 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 23:35:33,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 23:35:33,576 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 23:35:33,576 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 23:35:33,576 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 23:35:34,023 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 23:35:34,053 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 23:35:34,056 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 23:35:34,057 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 23:35:34,058 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 23:35:34,059 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe019_tso.opt.i [2021-01-06 23:35:34,156 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/7e989403e/f17eee7ca4f74aea8aa7f03e8574682b/FLAGeacc353ef [2021-01-06 23:35:34,817 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 23:35:34,818 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe019_tso.opt.i [2021-01-06 23:35:34,852 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/7e989403e/f17eee7ca4f74aea8aa7f03e8574682b/FLAGeacc353ef [2021-01-06 23:35:35,126 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/7e989403e/f17eee7ca4f74aea8aa7f03e8574682b [2021-01-06 23:35:35,129 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 23:35:35,131 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 23:35:35,133 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 23:35:35,134 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 23:35:35,138 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 23:35:35,139 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 11:35:35" (1/1) ... [2021-01-06 23:35:35,140 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15325c2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:35:35, skipping insertion in model container [2021-01-06 23:35:35,140 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 11:35:35" (1/1) ... [2021-01-06 23:35:35,153 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 23:35:35,226 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-06 23:35:35,423 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/safe019_tso.opt.i[949,962] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p0_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p0_EBX~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[~__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[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__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$tmp_guard1~0,GLOBAL] [2021-01-06 23:35:35,619 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 23:35:35,630 INFO L203 MainTranslator]: Completed pre-run [2021-01-06 23:35:35,647 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe019_tso.opt.i[949,962] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p0_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p0_EBX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p2_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard1~0,GLOBAL] [2021-01-06 23:35:35,687 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 23:35:35,814 INFO L208 MainTranslator]: Completed translation [2021-01-06 23:35:35,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:35:35 WrapperNode [2021-01-06 23:35:35,815 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 23:35:35,816 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 23:35:35,816 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 23:35:35,816 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 23:35:35,828 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:35:35" (1/1) ... [2021-01-06 23:35:35,846 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:35:35" (1/1) ... [2021-01-06 23:35:35,875 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 23:35:35,875 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 23:35:35,876 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 23:35:35,876 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 23:35:35,889 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:35:35" (1/1) ... [2021-01-06 23:35:35,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:35:35" (1/1) ... [2021-01-06 23:35:35,894 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:35:35" (1/1) ... [2021-01-06 23:35:35,894 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:35:35" (1/1) ... [2021-01-06 23:35:35,904 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:35:35" (1/1) ... [2021-01-06 23:35:35,907 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:35:35" (1/1) ... [2021-01-06 23:35:35,912 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:35:35" (1/1) ... [2021-01-06 23:35:35,919 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 23:35:35,920 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 23:35:35,923 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 23:35:35,923 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 23:35:35,925 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:35:35" (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 23:35:36,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-06 23:35:36,044 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-06 23:35:36,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 23:35:36,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-06 23:35:36,045 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-06 23:35:36,045 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-06 23:35:36,046 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-06 23:35:36,046 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-06 23:35:36,046 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-01-06 23:35:36,046 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-01-06 23:35:36,046 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-01-06 23:35:36,046 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-01-06 23:35:36,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 23:35:36,047 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-06 23:35:36,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 23:35:36,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 23:35:36,049 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 23:35:36,565 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 23:35:36,565 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-01-06 23:35:36,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:35:36 BoogieIcfgContainer [2021-01-06 23:35:36,568 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 23:35:36,570 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 23:35:36,570 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 23:35:36,574 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 23:35:36,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 11:35:35" (1/3) ... [2021-01-06 23:35:36,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fba1135 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 11:35:36, skipping insertion in model container [2021-01-06 23:35:36,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:35:35" (2/3) ... [2021-01-06 23:35:36,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fba1135 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 11:35:36, skipping insertion in model container [2021-01-06 23:35:36,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:35:36" (3/3) ... [2021-01-06 23:35:36,579 INFO L111 eAbstractionObserver]: Analyzing ICFG safe019_tso.opt.i [2021-01-06 23:35:36,587 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-06 23:35:36,587 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 23:35:36,593 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-06 23:35:36,594 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-06 23:35:36,642 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,642 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,643 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,643 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,643 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,643 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,644 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,644 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,645 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,645 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,645 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,645 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,646 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,646 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,646 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,647 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,647 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,647 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,647 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,648 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,648 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,648 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,649 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,649 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,649 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,650 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,650 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,650 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,650 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,651 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,651 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,651 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,651 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,652 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,652 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,653 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,653 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,653 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,654 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,654 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,654 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,654 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,655 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,655 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,655 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,655 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,656 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,656 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,659 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,659 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,659 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,660 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,666 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,667 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,667 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,667 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,670 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,671 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,671 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,671 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,674 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,675 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,675 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,675 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:36,678 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-06 23:35:36,701 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-01-06 23:35:36,727 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 23:35:36,727 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 23:35:36,728 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 23:35:36,728 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 23:35:36,728 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 23:35:36,728 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 23:35:36,728 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 23:35:36,728 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 23:35:36,743 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-01-06 23:35:36,745 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 86 transitions, 192 flow [2021-01-06 23:35:36,749 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 97 places, 86 transitions, 192 flow [2021-01-06 23:35:36,751 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 97 places, 86 transitions, 192 flow [2021-01-06 23:35:36,806 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2021-01-06 23:35:36,806 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-01-06 23:35:36,812 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 62 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2021-01-06 23:35:36,816 INFO L116 LiptonReduction]: Number of co-enabled transitions 1866 [2021-01-06 23:35:41,114 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2021-01-06 23:35:41,478 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-01-06 23:35:41,589 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-01-06 23:35:41,712 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-01-06 23:35:42,385 WARN L197 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2021-01-06 23:35:42,542 WARN L197 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-01-06 23:35:42,935 WARN L197 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2021-01-06 23:35:43,097 WARN L197 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-01-06 23:35:43,289 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-01-06 23:35:43,508 INFO L131 LiptonReduction]: Checked pairs total: 2978 [2021-01-06 23:35:43,508 INFO L133 LiptonReduction]: Total number of compositions: 68 [2021-01-06 23:35:43,519 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 25 transitions, 70 flow [2021-01-06 23:35:43,617 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 706 states. [2021-01-06 23:35:43,622 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states. [2021-01-06 23:35:43,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-01-06 23:35:43,633 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:35:43,634 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:35:43,634 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:35:43,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:35:43,641 INFO L82 PathProgramCache]: Analyzing trace with hash -36259415, now seen corresponding path program 1 times [2021-01-06 23:35:43,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:35:43,652 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332044130] [2021-01-06 23:35:43,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:35:43,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:35:44,048 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 23:35:44,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332044130] [2021-01-06 23:35:44,050 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:35:44,050 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-01-06 23:35:44,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892846267] [2021-01-06 23:35:44,056 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 23:35:44,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:35:44,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 23:35:44,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 23:35:44,076 INFO L87 Difference]: Start difference. First operand 706 states. Second operand 3 states. [2021-01-06 23:35:44,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:35:44,162 INFO L93 Difference]: Finished difference Result 1072 states and 3535 transitions. [2021-01-06 23:35:44,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 23:35:44,165 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2021-01-06 23:35:44,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:35:44,195 INFO L225 Difference]: With dead ends: 1072 [2021-01-06 23:35:44,196 INFO L226 Difference]: Without dead ends: 745 [2021-01-06 23:35:44,197 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 23:35:44,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2021-01-06 23:35:44,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 679. [2021-01-06 23:35:44,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 679 states. [2021-01-06 23:35:44,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 2220 transitions. [2021-01-06 23:35:44,342 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 2220 transitions. Word has length 10 [2021-01-06 23:35:44,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:35:44,344 INFO L481 AbstractCegarLoop]: Abstraction has 679 states and 2220 transitions. [2021-01-06 23:35:44,344 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 23:35:44,344 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 2220 transitions. [2021-01-06 23:35:44,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-01-06 23:35:44,350 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:35:44,350 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:35:44,350 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 23:35:44,350 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:35:44,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:35:44,354 INFO L82 PathProgramCache]: Analyzing trace with hash 1165014530, now seen corresponding path program 1 times [2021-01-06 23:35:44,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:35:44,355 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463261758] [2021-01-06 23:35:44,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:35:44,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:35:44,485 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 23:35:44,485 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463261758] [2021-01-06 23:35:44,486 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:35:44,486 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 23:35:44,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421618346] [2021-01-06 23:35:44,487 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 23:35:44,488 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:35:44,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 23:35:44,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-01-06 23:35:44,489 INFO L87 Difference]: Start difference. First operand 679 states and 2220 transitions. Second operand 4 states. [2021-01-06 23:35:44,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:35:44,531 INFO L93 Difference]: Finished difference Result 700 states and 2225 transitions. [2021-01-06 23:35:44,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 23:35:44,532 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2021-01-06 23:35:44,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:35:44,543 INFO L225 Difference]: With dead ends: 700 [2021-01-06 23:35:44,543 INFO L226 Difference]: Without dead ends: 700 [2021-01-06 23:35:44,544 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-01-06 23:35:44,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2021-01-06 23:35:44,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 652. [2021-01-06 23:35:44,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 652 states. [2021-01-06 23:35:44,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 2109 transitions. [2021-01-06 23:35:44,579 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 2109 transitions. Word has length 11 [2021-01-06 23:35:44,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:35:44,580 INFO L481 AbstractCegarLoop]: Abstraction has 652 states and 2109 transitions. [2021-01-06 23:35:44,580 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 23:35:44,582 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 2109 transitions. [2021-01-06 23:35:44,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-01-06 23:35:44,589 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:35:44,589 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:35:44,589 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-06 23:35:44,589 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:35:44,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:35:44,595 INFO L82 PathProgramCache]: Analyzing trace with hash -1124043458, now seen corresponding path program 1 times [2021-01-06 23:35:44,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:35:44,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319977622] [2021-01-06 23:35:44,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:35:44,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:35:44,727 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 23:35:44,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319977622] [2021-01-06 23:35:44,728 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:35:44,728 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 23:35:44,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061013421] [2021-01-06 23:35:44,729 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 23:35:44,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:35:44,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 23:35:44,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-01-06 23:35:44,734 INFO L87 Difference]: Start difference. First operand 652 states and 2109 transitions. Second operand 4 states. [2021-01-06 23:35:44,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:35:44,772 INFO L93 Difference]: Finished difference Result 664 states and 2099 transitions. [2021-01-06 23:35:44,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 23:35:44,773 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2021-01-06 23:35:44,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:35:44,779 INFO L225 Difference]: With dead ends: 664 [2021-01-06 23:35:44,779 INFO L226 Difference]: Without dead ends: 664 [2021-01-06 23:35:44,779 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-01-06 23:35:44,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2021-01-06 23:35:44,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 604. [2021-01-06 23:35:44,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 604 states. [2021-01-06 23:35:44,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 1939 transitions. [2021-01-06 23:35:44,805 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 1939 transitions. Word has length 11 [2021-01-06 23:35:44,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:35:44,805 INFO L481 AbstractCegarLoop]: Abstraction has 604 states and 1939 transitions. [2021-01-06 23:35:44,805 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 23:35:44,805 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 1939 transitions. [2021-01-06 23:35:44,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-01-06 23:35:44,807 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:35:44,807 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:35:44,807 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-06 23:35:44,807 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:35:44,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:35:44,808 INFO L82 PathProgramCache]: Analyzing trace with hash 1755710469, now seen corresponding path program 1 times [2021-01-06 23:35:44,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:35:44,808 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261286406] [2021-01-06 23:35:44,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:35:44,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:35:44,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:35:44,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261286406] [2021-01-06 23:35:44,885 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:35:44,886 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 23:35:44,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359066775] [2021-01-06 23:35:44,886 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:35:44,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:35:44,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:35:44,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:35:44,888 INFO L87 Difference]: Start difference. First operand 604 states and 1939 transitions. Second operand 5 states. [2021-01-06 23:35:44,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:35:44,958 INFO L93 Difference]: Finished difference Result 856 states and 2659 transitions. [2021-01-06 23:35:44,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 23:35:44,959 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2021-01-06 23:35:44,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:35:44,963 INFO L225 Difference]: With dead ends: 856 [2021-01-06 23:35:44,963 INFO L226 Difference]: Without dead ends: 472 [2021-01-06 23:35:44,964 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-01-06 23:35:44,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2021-01-06 23:35:44,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 436. [2021-01-06 23:35:44,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 436 states. [2021-01-06 23:35:44,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 1375 transitions. [2021-01-06 23:35:44,982 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 1375 transitions. Word has length 12 [2021-01-06 23:35:44,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:35:44,983 INFO L481 AbstractCegarLoop]: Abstraction has 436 states and 1375 transitions. [2021-01-06 23:35:44,983 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:35:44,983 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 1375 transitions. [2021-01-06 23:35:44,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-01-06 23:35:44,984 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:35:44,984 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:35:44,984 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-06 23:35:44,984 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:35:44,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:35:44,985 INFO L82 PathProgramCache]: Analyzing trace with hash -485610361, now seen corresponding path program 2 times [2021-01-06 23:35:44,985 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:35:44,985 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117146522] [2021-01-06 23:35:44,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:35:45,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:35:45,029 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 23:35:45,030 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117146522] [2021-01-06 23:35:45,030 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:35:45,030 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-01-06 23:35:45,030 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557674553] [2021-01-06 23:35:45,031 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 23:35:45,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:35:45,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 23:35:45,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 23:35:45,032 INFO L87 Difference]: Start difference. First operand 436 states and 1375 transitions. Second operand 3 states. [2021-01-06 23:35:45,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:35:45,042 INFO L93 Difference]: Finished difference Result 418 states and 1306 transitions. [2021-01-06 23:35:45,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 23:35:45,043 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2021-01-06 23:35:45,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:35:45,047 INFO L225 Difference]: With dead ends: 418 [2021-01-06 23:35:45,047 INFO L226 Difference]: Without dead ends: 418 [2021-01-06 23:35:45,048 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 23:35:45,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2021-01-06 23:35:45,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2021-01-06 23:35:45,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2021-01-06 23:35:45,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 1306 transitions. [2021-01-06 23:35:45,065 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 1306 transitions. Word has length 12 [2021-01-06 23:35:45,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:35:45,066 INFO L481 AbstractCegarLoop]: Abstraction has 418 states and 1306 transitions. [2021-01-06 23:35:45,066 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 23:35:45,066 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 1306 transitions. [2021-01-06 23:35:45,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-01-06 23:35:45,067 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:35:45,067 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:35:45,068 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-06 23:35:45,068 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:35:45,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:35:45,068 INFO L82 PathProgramCache]: Analyzing trace with hash -1949399229, now seen corresponding path program 1 times [2021-01-06 23:35:45,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:35:45,069 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102261208] [2021-01-06 23:35:45,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:35:45,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:35:45,127 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 23:35:45,128 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102261208] [2021-01-06 23:35:45,128 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:35:45,128 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 23:35:45,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464665088] [2021-01-06 23:35:45,129 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 23:35:45,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:35:45,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 23:35:45,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-01-06 23:35:45,130 INFO L87 Difference]: Start difference. First operand 418 states and 1306 transitions. Second operand 4 states. [2021-01-06 23:35:45,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:35:45,196 INFO L93 Difference]: Finished difference Result 532 states and 1601 transitions. [2021-01-06 23:35:45,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 23:35:45,197 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2021-01-06 23:35:45,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:35:45,201 INFO L225 Difference]: With dead ends: 532 [2021-01-06 23:35:45,201 INFO L226 Difference]: Without dead ends: 412 [2021-01-06 23:35:45,201 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-01-06 23:35:45,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2021-01-06 23:35:45,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 376. [2021-01-06 23:35:45,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2021-01-06 23:35:45,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 1137 transitions. [2021-01-06 23:35:45,218 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 1137 transitions. Word has length 13 [2021-01-06 23:35:45,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:35:45,219 INFO L481 AbstractCegarLoop]: Abstraction has 376 states and 1137 transitions. [2021-01-06 23:35:45,219 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 23:35:45,219 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 1137 transitions. [2021-01-06 23:35:45,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-01-06 23:35:45,220 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:35:45,221 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:35:45,221 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-06 23:35:45,221 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:35:45,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:35:45,222 INFO L82 PathProgramCache]: Analyzing trace with hash -1949381931, now seen corresponding path program 1 times [2021-01-06 23:35:45,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:35:45,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720921550] [2021-01-06 23:35:45,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:35:45,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:35:45,301 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 23:35:45,302 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720921550] [2021-01-06 23:35:45,302 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:35:45,303 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 23:35:45,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468537915] [2021-01-06 23:35:45,307 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 23:35:45,308 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:35:45,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 23:35:45,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 23:35:45,309 INFO L87 Difference]: Start difference. First operand 376 states and 1137 transitions. Second operand 4 states. [2021-01-06 23:35:45,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:35:45,351 INFO L93 Difference]: Finished difference Result 526 states and 1530 transitions. [2021-01-06 23:35:45,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 23:35:45,352 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2021-01-06 23:35:45,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:35:45,355 INFO L225 Difference]: With dead ends: 526 [2021-01-06 23:35:45,355 INFO L226 Difference]: Without dead ends: 274 [2021-01-06 23:35:45,356 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 23:35:45,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2021-01-06 23:35:45,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2021-01-06 23:35:45,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2021-01-06 23:35:45,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 775 transitions. [2021-01-06 23:35:45,367 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 775 transitions. Word has length 13 [2021-01-06 23:35:45,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:35:45,367 INFO L481 AbstractCegarLoop]: Abstraction has 274 states and 775 transitions. [2021-01-06 23:35:45,367 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 23:35:45,367 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 775 transitions. [2021-01-06 23:35:45,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-01-06 23:35:45,368 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:35:45,368 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:35:45,369 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-06 23:35:45,369 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:35:45,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:35:45,370 INFO L82 PathProgramCache]: Analyzing trace with hash 2123867267, now seen corresponding path program 1 times [2021-01-06 23:35:45,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:35:45,370 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231485168] [2021-01-06 23:35:45,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:35:45,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:35:45,438 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 23:35:45,439 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231485168] [2021-01-06 23:35:45,439 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:35:45,439 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 23:35:45,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103827186] [2021-01-06 23:35:45,440 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 23:35:45,440 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:35:45,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 23:35:45,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 23:35:45,441 INFO L87 Difference]: Start difference. First operand 274 states and 775 transitions. Second operand 4 states. [2021-01-06 23:35:45,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:35:45,505 INFO L93 Difference]: Finished difference Result 345 states and 911 transitions. [2021-01-06 23:35:45,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 23:35:45,506 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2021-01-06 23:35:45,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:35:45,508 INFO L225 Difference]: With dead ends: 345 [2021-01-06 23:35:45,508 INFO L226 Difference]: Without dead ends: 252 [2021-01-06 23:35:45,510 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 23:35:45,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2021-01-06 23:35:45,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2021-01-06 23:35:45,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2021-01-06 23:35:45,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 675 transitions. [2021-01-06 23:35:45,518 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 675 transitions. Word has length 14 [2021-01-06 23:35:45,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:35:45,519 INFO L481 AbstractCegarLoop]: Abstraction has 252 states and 675 transitions. [2021-01-06 23:35:45,519 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 23:35:45,519 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 675 transitions. [2021-01-06 23:35:45,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-01-06 23:35:45,520 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:35:45,520 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:35:45,520 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-06 23:35:45,520 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:35:45,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:35:45,521 INFO L82 PathProgramCache]: Analyzing trace with hash 1422134941, now seen corresponding path program 1 times [2021-01-06 23:35:45,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:35:45,523 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624532926] [2021-01-06 23:35:45,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:35:45,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:35:45,634 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 23:35:45,635 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624532926] [2021-01-06 23:35:45,635 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:35:45,636 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 23:35:45,636 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725484039] [2021-01-06 23:35:45,636 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:35:45,637 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:35:45,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:35:45,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:35:45,637 INFO L87 Difference]: Start difference. First operand 252 states and 675 transitions. Second operand 5 states. [2021-01-06 23:35:45,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:35:45,725 INFO L93 Difference]: Finished difference Result 278 states and 685 transitions. [2021-01-06 23:35:45,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 23:35:45,726 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2021-01-06 23:35:45,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:35:45,728 INFO L225 Difference]: With dead ends: 278 [2021-01-06 23:35:45,728 INFO L226 Difference]: Without dead ends: 203 [2021-01-06 23:35:45,730 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 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 23:35:45,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2021-01-06 23:35:45,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2021-01-06 23:35:45,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2021-01-06 23:35:45,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 492 transitions. [2021-01-06 23:35:45,738 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 492 transitions. Word has length 15 [2021-01-06 23:35:45,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:35:45,739 INFO L481 AbstractCegarLoop]: Abstraction has 203 states and 492 transitions. [2021-01-06 23:35:45,739 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:35:45,739 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 492 transitions. [2021-01-06 23:35:45,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-01-06 23:35:45,740 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:35:45,740 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:35:45,741 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-06 23:35:45,741 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:35:45,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:35:45,742 INFO L82 PathProgramCache]: Analyzing trace with hash 1099628631, now seen corresponding path program 1 times [2021-01-06 23:35:45,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:35:45,742 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384774344] [2021-01-06 23:35:45,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:35:45,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:35:45,862 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 23:35:45,862 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384774344] [2021-01-06 23:35:45,862 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:35:45,863 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 23:35:45,863 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992466568] [2021-01-06 23:35:45,863 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 23:35:45,863 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:35:45,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 23:35:45,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-01-06 23:35:45,864 INFO L87 Difference]: Start difference. First operand 203 states and 492 transitions. Second operand 6 states. [2021-01-06 23:35:45,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:35:45,959 INFO L93 Difference]: Finished difference Result 200 states and 461 transitions. [2021-01-06 23:35:45,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-06 23:35:45,960 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2021-01-06 23:35:45,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:35:45,962 INFO L225 Difference]: With dead ends: 200 [2021-01-06 23:35:45,962 INFO L226 Difference]: Without dead ends: 162 [2021-01-06 23:35:45,962 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 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 23:35:45,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2021-01-06 23:35:45,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2021-01-06 23:35:45,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2021-01-06 23:35:45,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 375 transitions. [2021-01-06 23:35:45,968 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 375 transitions. Word has length 16 [2021-01-06 23:35:45,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:35:45,969 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 375 transitions. [2021-01-06 23:35:45,969 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 23:35:45,969 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 375 transitions. [2021-01-06 23:35:45,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-01-06 23:35:45,970 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:35:45,970 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:35:45,970 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-01-06 23:35:45,970 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:35:45,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:35:45,971 INFO L82 PathProgramCache]: Analyzing trace with hash 554738786, now seen corresponding path program 1 times [2021-01-06 23:35:45,971 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:35:45,971 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752433138] [2021-01-06 23:35:45,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:35:45,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:35:46,030 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 23:35:46,031 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752433138] [2021-01-06 23:35:46,031 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:35:46,031 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 23:35:46,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775167681] [2021-01-06 23:35:46,032 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:35:46,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:35:46,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:35:46,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:35:46,033 INFO L87 Difference]: Start difference. First operand 162 states and 375 transitions. Second operand 5 states. [2021-01-06 23:35:46,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:35:46,076 INFO L93 Difference]: Finished difference Result 194 states and 439 transitions. [2021-01-06 23:35:46,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 23:35:46,077 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2021-01-06 23:35:46,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:35:46,078 INFO L225 Difference]: With dead ends: 194 [2021-01-06 23:35:46,078 INFO L226 Difference]: Without dead ends: 127 [2021-01-06 23:35:46,079 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-01-06 23:35:46,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2021-01-06 23:35:46,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 125. [2021-01-06 23:35:46,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2021-01-06 23:35:46,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 265 transitions. [2021-01-06 23:35:46,083 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 265 transitions. Word has length 18 [2021-01-06 23:35:46,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:35:46,084 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 265 transitions. [2021-01-06 23:35:46,084 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:35:46,084 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 265 transitions. [2021-01-06 23:35:46,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-01-06 23:35:46,085 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:35:46,085 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:35:46,085 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-01-06 23:35:46,085 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:35:46,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:35:46,086 INFO L82 PathProgramCache]: Analyzing trace with hash -780782352, now seen corresponding path program 2 times [2021-01-06 23:35:46,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:35:46,087 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732753414] [2021-01-06 23:35:46,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:35:46,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:35:46,186 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 23:35:46,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732753414] [2021-01-06 23:35:46,187 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:35:46,187 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 23:35:46,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629650333] [2021-01-06 23:35:46,187 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 23:35:46,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:35:46,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 23:35:46,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-01-06 23:35:46,188 INFO L87 Difference]: Start difference. First operand 125 states and 265 transitions. Second operand 7 states. [2021-01-06 23:35:46,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:35:46,298 INFO L93 Difference]: Finished difference Result 120 states and 253 transitions. [2021-01-06 23:35:46,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-01-06 23:35:46,299 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2021-01-06 23:35:46,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:35:46,300 INFO L225 Difference]: With dead ends: 120 [2021-01-06 23:35:46,300 INFO L226 Difference]: Without dead ends: 71 [2021-01-06 23:35:46,300 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-01-06 23:35:46,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-01-06 23:35:46,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2021-01-06 23:35:46,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2021-01-06 23:35:46,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 143 transitions. [2021-01-06 23:35:46,303 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 143 transitions. Word has length 18 [2021-01-06 23:35:46,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:35:46,304 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 143 transitions. [2021-01-06 23:35:46,304 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 23:35:46,304 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 143 transitions. [2021-01-06 23:35:46,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-01-06 23:35:46,304 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:35:46,305 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:35:46,305 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-01-06 23:35:46,305 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:35:46,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:35:46,305 INFO L82 PathProgramCache]: Analyzing trace with hash 1285342776, now seen corresponding path program 1 times [2021-01-06 23:35:46,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:35:46,306 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022238767] [2021-01-06 23:35:46,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:35:46,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:35:46,429 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 23:35:46,435 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022238767] [2021-01-06 23:35:46,435 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:35:46,435 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 23:35:46,435 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034768664] [2021-01-06 23:35:46,436 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 23:35:46,437 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:35:46,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 23:35:46,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 23:35:46,438 INFO L87 Difference]: Start difference. First operand 71 states and 143 transitions. Second operand 4 states. [2021-01-06 23:35:46,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:35:46,475 INFO L93 Difference]: Finished difference Result 70 states and 142 transitions. [2021-01-06 23:35:46,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 23:35:46,476 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2021-01-06 23:35:46,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:35:46,476 INFO L225 Difference]: With dead ends: 70 [2021-01-06 23:35:46,477 INFO L226 Difference]: Without dead ends: 0 [2021-01-06 23:35:46,477 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 23:35:46,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-01-06 23:35:46,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-01-06 23:35:46,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-01-06 23:35:46,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-01-06 23:35:46,478 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2021-01-06 23:35:46,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:35:46,478 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-01-06 23:35:46,478 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 23:35:46,478 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-01-06 23:35:46,478 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-06 23:35:46,478 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-01-06 23:35:46,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.01 11:35:46 BasicIcfg [2021-01-06 23:35:46,484 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-06 23:35:46,485 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-01-06 23:35:46,485 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-01-06 23:35:46,485 INFO L275 PluginConnector]: Witness Printer initialized [2021-01-06 23:35:46,486 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:35:36" (3/4) ... [2021-01-06 23:35:46,491 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-01-06 23:35:46,499 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2021-01-06 23:35:46,500 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2021-01-06 23:35:46,500 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2021-01-06 23:35:46,500 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2021-01-06 23:35:46,508 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2021-01-06 23:35:46,508 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-01-06 23:35:46,509 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-01-06 23:35:46,509 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-01-06 23:35:46,578 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/pthread-wmm/safe019_tso.opt.i-witness.graphml [2021-01-06 23:35:46,578 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-01-06 23:35:46,583 INFO L168 Benchmark]: Toolchain (without parser) took 11448.81 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 124.9 MB in the beginning and 179.1 MB in the end (delta: -54.2 MB). Peak memory consumption was 13.9 MB. Max. memory is 8.0 GB. [2021-01-06 23:35:46,583 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory is still 124.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 23:35:46,584 INFO L168 Benchmark]: CACSL2BoogieTranslator took 681.83 ms. Allocated memory is still 151.0 MB. Free memory was 124.7 MB in the beginning and 125.5 MB in the end (delta: -860.0 kB). Peak memory consumption was 28.1 MB. Max. memory is 8.0 GB. [2021-01-06 23:35:46,584 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.91 ms. Allocated memory is still 151.0 MB. Free memory was 125.5 MB in the beginning and 123.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-01-06 23:35:46,585 INFO L168 Benchmark]: Boogie Preprocessor took 43.62 ms. Allocated memory is still 151.0 MB. Free memory was 123.5 MB in the beginning and 121.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-01-06 23:35:46,590 INFO L168 Benchmark]: RCFGBuilder took 648.13 ms. Allocated memory is still 151.0 MB. Free memory was 121.9 MB in the beginning and 98.4 MB in the end (delta: 23.6 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. [2021-01-06 23:35:46,590 INFO L168 Benchmark]: TraceAbstraction took 9914.66 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 97.8 MB in the beginning and 182.2 MB in the end (delta: -84.4 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 23:35:46,591 INFO L168 Benchmark]: Witness Printer took 93.54 ms. Allocated memory is still 218.1 MB. Free memory was 181.7 MB in the beginning and 179.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-01-06 23:35:46,593 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory is still 124.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 681.83 ms. Allocated memory is still 151.0 MB. Free memory was 124.7 MB in the beginning and 125.5 MB in the end (delta: -860.0 kB). Peak memory consumption was 28.1 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 58.91 ms. Allocated memory is still 151.0 MB. Free memory was 125.5 MB in the beginning and 123.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 43.62 ms. Allocated memory is still 151.0 MB. Free memory was 123.5 MB in the beginning and 121.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 648.13 ms. Allocated memory is still 151.0 MB. Free memory was 121.9 MB in the beginning and 98.4 MB in the end (delta: 23.6 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 9914.66 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 97.8 MB in the beginning and 182.2 MB in the end (delta: -84.4 MB). There was no memory consumed. Max. memory is 8.0 GB. * Witness Printer took 93.54 ms. Allocated memory is still 218.1 MB. Free memory was 181.7 MB in the beginning and 179.1 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 1172 VarBasedMoverChecksPositive, 55 VarBasedMoverChecksNegative, 17 SemBasedMoverChecksPositive, 38 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.7s, 75 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 6.7s, 97 PlacesBefore, 38 PlacesAfterwards, 86 TransitionsBefore, 25 TransitionsAfterwards, 1866 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 46 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 2 ChoiceCompositions, 68 TotalNumberOfCompositions, 2978 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 5 procedures, 85 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 9.7s, OverallIterations: 13, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.8s, HoareTripleCheckerStatistics: 283 SDtfs, 313 SDslu, 410 SDs, 0 SdLazy, 234 SolverSat, 58 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=706occurred 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, 13 MinimizatonAttempts, 248 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 183 NumberOfCodeBlocks, 183 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 170 ConstructedInterpolants, 0 QuantifiedInterpolants, 10828 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 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...