/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/safe031_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 13:45:42,410 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 13:45:42,416 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 13:45:42,479 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 13:45:42,480 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 13:45:42,484 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 13:45:42,489 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 13:45:42,495 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 13:45:42,499 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 13:45:42,507 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 13:45:42,512 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 13:45:42,514 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 13:45:42,515 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 13:45:42,519 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 13:45:42,521 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 13:45:42,523 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 13:45:42,524 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 13:45:42,528 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 13:45:42,537 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 13:45:42,547 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 13:45:42,550 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 13:45:42,553 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 13:45:42,555 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 13:45:42,558 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 13:45:42,590 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 13:45:42,591 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 13:45:42,591 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 13:45:42,593 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 13:45:42,594 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 13:45:42,595 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 13:45:42,596 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 13:45:42,597 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 13:45:42,599 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 13:45:42,599 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 13:45:42,600 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 13:45:42,601 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 13:45:42,602 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 13:45:42,609 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 13:45:42,610 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 13:45:42,611 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 13:45:42,612 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 13:45:42,613 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-23 13:45:42,665 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 13:45:42,665 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 13:45:42,670 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 13:45:42,671 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 13:45:42,671 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 13:45:42,671 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 13:45:42,672 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 13:45:42,672 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 13:45:42,672 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 13:45:42,672 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 13:45:42,673 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 13:45:42,674 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 13:45:42,674 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 13:45:42,674 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 13:45:42,675 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 13:45:42,675 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 13:45:42,675 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 13:45:42,675 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 13:45:42,675 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 13:45:42,676 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 13:45:42,676 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 13:45:42,676 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 13:45:42,676 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 13:45:42,676 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 13:45:42,676 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 13:45:42,677 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 13:45:43,139 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 13:45:43,175 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 13:45:43,178 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 13:45:43,179 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 13:45:43,180 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 13:45:43,181 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe031_tso.oepc.i [2020-12-23 13:45:43,268 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/64a3dc138/9a0096f6f05a4de9b91be48bff61c8f2/FLAG216cd7089 [2020-12-23 13:45:43,980 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 13:45:43,980 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe031_tso.oepc.i [2020-12-23 13:45:44,011 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/64a3dc138/9a0096f6f05a4de9b91be48bff61c8f2/FLAG216cd7089 [2020-12-23 13:45:44,228 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/64a3dc138/9a0096f6f05a4de9b91be48bff61c8f2 [2020-12-23 13:45:44,232 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 13:45:44,234 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 13:45:44,235 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 13:45:44,236 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 13:45:44,240 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 13:45:44,241 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:45:44" (1/1) ... [2020-12-23 13:45:44,242 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4308f96f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:45:44, skipping insertion in model container [2020-12-23 13:45:44,242 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:45:44" (1/1) ... [2020-12-23 13:45:44,251 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 13:45:44,293 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-23 13:45:44,477 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/safe031_tso.oepc.i[950,963] left hand side expression in assignment: lhs: VariableLHS[~z~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p0_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~z~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard1~0,GLOBAL] [2020-12-23 13:45:44,800 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 13:45:44,810 INFO L203 MainTranslator]: Completed pre-run [2020-12-23 13:45:44,827 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe031_tso.oepc.i[950,963] left hand side expression in assignment: lhs: VariableLHS[~z~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p0_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~z~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard1~0,GLOBAL] [2020-12-23 13:45:44,895 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 13:45:44,999 INFO L208 MainTranslator]: Completed translation [2020-12-23 13:45:45,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:45:45 WrapperNode [2020-12-23 13:45:45,000 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 13:45:45,003 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 13:45:45,003 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 13:45:45,003 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 13:45:45,013 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:45:45" (1/1) ... [2020-12-23 13:45:45,053 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:45:45" (1/1) ... [2020-12-23 13:45:45,091 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 13:45:45,094 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 13:45:45,095 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 13:45:45,095 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 13:45:45,106 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:45:45" (1/1) ... [2020-12-23 13:45:45,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:45:45" (1/1) ... [2020-12-23 13:45:45,111 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:45:45" (1/1) ... [2020-12-23 13:45:45,111 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:45:45" (1/1) ... [2020-12-23 13:45:45,126 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:45:45" (1/1) ... [2020-12-23 13:45:45,133 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:45:45" (1/1) ... [2020-12-23 13:45:45,135 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:45:45" (1/1) ... [2020-12-23 13:45:45,145 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 13:45:45,146 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 13:45:45,146 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 13:45:45,146 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 13:45:45,149 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:45:45" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 13:45:45,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-23 13:45:45,273 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-23 13:45:45,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 13:45:45,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-23 13:45:45,274 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-23 13:45:45,274 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-23 13:45:45,275 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-23 13:45:45,275 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-23 13:45:45,276 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-23 13:45:45,276 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-23 13:45:45,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 13:45:45,278 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-23 13:45:45,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 13:45:45,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 13:45:45,280 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-23 13:45:45,772 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 13:45:45,772 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-23 13:45:45,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:45:45 BoogieIcfgContainer [2020-12-23 13:45:45,777 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 13:45:45,779 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 13:45:45,779 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 13:45:45,783 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 13:45:45,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 01:45:44" (1/3) ... [2020-12-23 13:45:45,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32ebaec7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:45:45, skipping insertion in model container [2020-12-23 13:45:45,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:45:45" (2/3) ... [2020-12-23 13:45:45,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32ebaec7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:45:45, skipping insertion in model container [2020-12-23 13:45:45,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:45:45" (3/3) ... [2020-12-23 13:45:45,789 INFO L111 eAbstractionObserver]: Analyzing ICFG safe031_tso.oepc.i [2020-12-23 13:45:45,797 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-23 13:45:45,798 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 13:45:45,810 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 13:45:45,811 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-23 13:45:45,878 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:45,879 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:45,879 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:45,879 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:45,880 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:45,880 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:45,880 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:45,880 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:45,881 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:45,881 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:45,881 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:45,881 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:45,883 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:45,884 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:45,884 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:45,884 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:45,885 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:45,885 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:45,885 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:45,886 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:45,886 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:45,887 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:45,887 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:45,887 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:45,888 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:45,888 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:45,888 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:45,890 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:45,893 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:45,893 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:45,894 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:45,894 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:45,896 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:45,896 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:45,896 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:45,897 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:45,900 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:45,902 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:45,902 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:45,902 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:45,910 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:45,910 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:45,910 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:45,911 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:45,925 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:45,925 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:45,926 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:45,926 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:45:45,935 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-23 13:45:45,958 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-23 13:45:46,003 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 13:45:46,003 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 13:45:46,003 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 13:45:46,003 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 13:45:46,004 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 13:45:46,004 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 13:45:46,004 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 13:45:46,004 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 13:45:46,027 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-23 13:45:46,031 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 74 transitions, 163 flow [2020-12-23 13:45:46,036 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 74 transitions, 163 flow [2020-12-23 13:45:46,038 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 74 transitions, 163 flow [2020-12-23 13:45:46,132 INFO L129 PetriNetUnfolder]: 2/71 cut-off events. [2020-12-23 13:45:46,132 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-12-23 13:45:46,144 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 71 events. 2/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2020-12-23 13:45:46,148 INFO L116 LiptonReduction]: Number of co-enabled transitions 1296 [2020-12-23 13:45:49,552 WARN L197 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2020-12-23 13:45:49,657 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-12-23 13:45:49,893 WARN L197 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2020-12-23 13:45:50,010 INFO L131 LiptonReduction]: Checked pairs total: 2656 [2020-12-23 13:45:50,010 INFO L133 LiptonReduction]: Total number of compositions: 62 [2020-12-23 13:45:50,018 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-12-23 13:45:50,051 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-12-23 13:45:50,054 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-12-23 13:45:50,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-23 13:45:50,062 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:45:50,063 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:45:50,063 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:45:50,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:45:50,070 INFO L82 PathProgramCache]: Analyzing trace with hash -73223859, now seen corresponding path program 1 times [2020-12-23 13:45:50,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:45:50,082 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528733247] [2020-12-23 13:45:50,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:45:50,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:45:50,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:45:50,298 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528733247] [2020-12-23 13:45:50,299 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:45:50,299 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 13:45:50,301 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269911779] [2020-12-23 13:45:50,308 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-23 13:45:50,309 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:45:50,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-23 13:45:50,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 13:45:50,329 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-12-23 13:45:50,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:45:50,379 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-12-23 13:45:50,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-23 13:45:50,381 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-12-23 13:45:50,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:45:50,413 INFO L225 Difference]: With dead ends: 362 [2020-12-23 13:45:50,413 INFO L226 Difference]: Without dead ends: 298 [2020-12-23 13:45:50,415 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 13:45:50,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-12-23 13:45:50,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-12-23 13:45:50,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-12-23 13:45:50,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-12-23 13:45:50,530 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-12-23 13:45:50,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:45:50,531 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-12-23 13:45:50,531 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-23 13:45:50,531 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-12-23 13:45:50,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-23 13:45:50,533 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:45:50,533 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:45:50,533 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 13:45:50,534 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:45:50,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:45:50,534 INFO L82 PathProgramCache]: Analyzing trace with hash 2025018626, now seen corresponding path program 1 times [2020-12-23 13:45:50,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:45:50,535 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112875247] [2020-12-23 13:45:50,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:45:50,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:45:50,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:45:50,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112875247] [2020-12-23 13:45:50,757 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:45:50,757 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 13:45:50,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638365224] [2020-12-23 13:45:50,759 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 13:45:50,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:45:50,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 13:45:50,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 13:45:50,762 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-12-23 13:45:50,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:45:50,876 INFO L93 Difference]: Finished difference Result 556 states and 1507 transitions. [2020-12-23 13:45:50,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 13:45:50,877 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-12-23 13:45:50,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:45:50,886 INFO L225 Difference]: With dead ends: 556 [2020-12-23 13:45:50,887 INFO L226 Difference]: Without dead ends: 414 [2020-12-23 13:45:50,888 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 13:45:50,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2020-12-23 13:45:50,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 338. [2020-12-23 13:45:50,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2020-12-23 13:45:50,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 924 transitions. [2020-12-23 13:45:50,955 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 924 transitions. Word has length 9 [2020-12-23 13:45:50,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:45:50,955 INFO L481 AbstractCegarLoop]: Abstraction has 338 states and 924 transitions. [2020-12-23 13:45:50,955 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 13:45:50,955 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 924 transitions. [2020-12-23 13:45:50,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-23 13:45:50,960 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:45:50,960 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:45:50,961 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 13:45:50,961 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:45:50,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:45:50,964 INFO L82 PathProgramCache]: Analyzing trace with hash 642582749, now seen corresponding path program 1 times [2020-12-23 13:45:50,964 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:45:50,964 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88309002] [2020-12-23 13:45:50,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:45:51,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:45:51,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:45:51,181 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88309002] [2020-12-23 13:45:51,181 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:45:51,181 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 13:45:51,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516529206] [2020-12-23 13:45:51,182 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 13:45:51,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:45:51,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 13:45:51,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 13:45:51,188 INFO L87 Difference]: Start difference. First operand 338 states and 924 transitions. Second operand 5 states. [2020-12-23 13:45:51,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:45:51,262 INFO L93 Difference]: Finished difference Result 464 states and 1199 transitions. [2020-12-23 13:45:51,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-23 13:45:51,263 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-12-23 13:45:51,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:45:51,267 INFO L225 Difference]: With dead ends: 464 [2020-12-23 13:45:51,267 INFO L226 Difference]: Without dead ends: 390 [2020-12-23 13:45:51,268 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-23 13:45:51,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2020-12-23 13:45:51,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 326. [2020-12-23 13:45:51,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 326 states. [2020-12-23 13:45:51,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 880 transitions. [2020-12-23 13:45:51,287 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 880 transitions. Word has length 10 [2020-12-23 13:45:51,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:45:51,288 INFO L481 AbstractCegarLoop]: Abstraction has 326 states and 880 transitions. [2020-12-23 13:45:51,288 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 13:45:51,288 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 880 transitions. [2020-12-23 13:45:51,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-23 13:45:51,297 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:45:51,297 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:45:51,298 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 13:45:51,298 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:45:51,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:45:51,302 INFO L82 PathProgramCache]: Analyzing trace with hash -1648891103, now seen corresponding path program 1 times [2020-12-23 13:45:51,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:45:51,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196959300] [2020-12-23 13:45:51,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:45:51,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:45:51,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:45:51,432 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196959300] [2020-12-23 13:45:51,432 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:45:51,432 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 13:45:51,433 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989771154] [2020-12-23 13:45:51,433 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 13:45:51,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:45:51,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 13:45:51,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 13:45:51,436 INFO L87 Difference]: Start difference. First operand 326 states and 880 transitions. Second operand 5 states. [2020-12-23 13:45:51,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:45:51,502 INFO L93 Difference]: Finished difference Result 440 states and 1121 transitions. [2020-12-23 13:45:51,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-23 13:45:51,503 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-12-23 13:45:51,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:45:51,506 INFO L225 Difference]: With dead ends: 440 [2020-12-23 13:45:51,506 INFO L226 Difference]: Without dead ends: 362 [2020-12-23 13:45:51,507 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-23 13:45:51,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2020-12-23 13:45:51,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 298. [2020-12-23 13:45:51,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-12-23 13:45:51,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 794 transitions. [2020-12-23 13:45:51,521 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 794 transitions. Word has length 10 [2020-12-23 13:45:51,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:45:51,521 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 794 transitions. [2020-12-23 13:45:51,522 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 13:45:51,522 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 794 transitions. [2020-12-23 13:45:51,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-23 13:45:51,523 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:45:51,523 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:45:51,523 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 13:45:51,523 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:45:51,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:45:51,524 INFO L82 PathProgramCache]: Analyzing trace with hash -1554730330, now seen corresponding path program 1 times [2020-12-23 13:45:51,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:45:51,525 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514370054] [2020-12-23 13:45:51,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:45:51,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:45:51,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:45:51,589 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514370054] [2020-12-23 13:45:51,589 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:45:51,589 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 13:45:51,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532371517] [2020-12-23 13:45:51,590 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 13:45:51,590 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:45:51,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 13:45:51,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 13:45:51,591 INFO L87 Difference]: Start difference. First operand 298 states and 794 transitions. Second operand 3 states. [2020-12-23 13:45:51,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:45:51,606 INFO L93 Difference]: Finished difference Result 237 states and 555 transitions. [2020-12-23 13:45:51,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 13:45:51,607 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-12-23 13:45:51,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:45:51,609 INFO L225 Difference]: With dead ends: 237 [2020-12-23 13:45:51,609 INFO L226 Difference]: Without dead ends: 237 [2020-12-23 13:45:51,610 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 13:45:51,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2020-12-23 13:45:51,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 237. [2020-12-23 13:45:51,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2020-12-23 13:45:51,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 555 transitions. [2020-12-23 13:45:51,619 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 555 transitions. Word has length 11 [2020-12-23 13:45:51,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:45:51,620 INFO L481 AbstractCegarLoop]: Abstraction has 237 states and 555 transitions. [2020-12-23 13:45:51,620 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 13:45:51,620 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 555 transitions. [2020-12-23 13:45:51,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-23 13:45:51,621 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:45:51,621 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:45:51,622 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-23 13:45:51,622 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:45:51,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:45:51,623 INFO L82 PathProgramCache]: Analyzing trace with hash -1718582767, now seen corresponding path program 1 times [2020-12-23 13:45:51,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:45:51,623 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796061057] [2020-12-23 13:45:51,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:45:51,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:45:51,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:45:51,741 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796061057] [2020-12-23 13:45:51,742 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:45:51,742 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 13:45:51,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598212830] [2020-12-23 13:45:51,742 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 13:45:51,743 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:45:51,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 13:45:51,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 13:45:51,744 INFO L87 Difference]: Start difference. First operand 237 states and 555 transitions. Second operand 4 states. [2020-12-23 13:45:51,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:45:51,765 INFO L93 Difference]: Finished difference Result 164 states and 343 transitions. [2020-12-23 13:45:51,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 13:45:51,765 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-12-23 13:45:51,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:45:51,767 INFO L225 Difference]: With dead ends: 164 [2020-12-23 13:45:51,767 INFO L226 Difference]: Without dead ends: 160 [2020-12-23 13:45:51,767 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 [2020-12-23 13:45:51,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-12-23 13:45:51,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 148. [2020-12-23 13:45:51,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-12-23 13:45:51,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 303 transitions. [2020-12-23 13:45:51,773 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 303 transitions. Word has length 13 [2020-12-23 13:45:51,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:45:51,773 INFO L481 AbstractCegarLoop]: Abstraction has 148 states and 303 transitions. [2020-12-23 13:45:51,773 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 13:45:51,774 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 303 transitions. [2020-12-23 13:45:51,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-23 13:45:51,774 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:45:51,775 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:45:51,775 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-23 13:45:51,775 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:45:51,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:45:51,775 INFO L82 PathProgramCache]: Analyzing trace with hash 669066047, now seen corresponding path program 1 times [2020-12-23 13:45:51,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:45:51,776 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316700886] [2020-12-23 13:45:51,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:45:51,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:45:51,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:45:51,854 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316700886] [2020-12-23 13:45:51,854 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:45:51,855 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 13:45:51,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231602460] [2020-12-23 13:45:51,855 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 13:45:51,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:45:51,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 13:45:51,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 13:45:51,858 INFO L87 Difference]: Start difference. First operand 148 states and 303 transitions. Second operand 5 states. [2020-12-23 13:45:51,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:45:51,969 INFO L93 Difference]: Finished difference Result 184 states and 367 transitions. [2020-12-23 13:45:51,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-23 13:45:51,970 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-12-23 13:45:51,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:45:51,971 INFO L225 Difference]: With dead ends: 184 [2020-12-23 13:45:51,971 INFO L226 Difference]: Without dead ends: 140 [2020-12-23 13:45:51,973 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-23 13:45:51,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-12-23 13:45:51,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 111. [2020-12-23 13:45:51,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-12-23 13:45:51,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 212 transitions. [2020-12-23 13:45:51,978 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 212 transitions. Word has length 15 [2020-12-23 13:45:51,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:45:51,979 INFO L481 AbstractCegarLoop]: Abstraction has 111 states and 212 transitions. [2020-12-23 13:45:51,979 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 13:45:51,979 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 212 transitions. [2020-12-23 13:45:51,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-23 13:45:51,980 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:45:51,980 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:45:51,981 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-23 13:45:51,981 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:45:51,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:45:51,981 INFO L82 PathProgramCache]: Analyzing trace with hash 660741003, now seen corresponding path program 1 times [2020-12-23 13:45:51,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:45:51,982 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435093700] [2020-12-23 13:45:51,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:45:52,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:45:52,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:45:52,111 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435093700] [2020-12-23 13:45:52,111 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:45:52,112 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 13:45:52,112 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415968602] [2020-12-23 13:45:52,113 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 13:45:52,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:45:52,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 13:45:52,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 13:45:52,117 INFO L87 Difference]: Start difference. First operand 111 states and 212 transitions. Second operand 5 states. [2020-12-23 13:45:52,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:45:52,165 INFO L93 Difference]: Finished difference Result 152 states and 279 transitions. [2020-12-23 13:45:52,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 13:45:52,173 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-12-23 13:45:52,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:45:52,177 INFO L225 Difference]: With dead ends: 152 [2020-12-23 13:45:52,177 INFO L226 Difference]: Without dead ends: 135 [2020-12-23 13:45:52,178 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-23 13:45:52,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-12-23 13:45:52,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 110. [2020-12-23 13:45:52,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-12-23 13:45:52,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 209 transitions. [2020-12-23 13:45:52,183 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 209 transitions. Word has length 15 [2020-12-23 13:45:52,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:45:52,183 INFO L481 AbstractCegarLoop]: Abstraction has 110 states and 209 transitions. [2020-12-23 13:45:52,183 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 13:45:52,183 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 209 transitions. [2020-12-23 13:45:52,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-23 13:45:52,184 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:45:52,184 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:45:52,184 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-23 13:45:52,185 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:45:52,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:45:52,186 INFO L82 PathProgramCache]: Analyzing trace with hash 2129101485, now seen corresponding path program 2 times [2020-12-23 13:45:52,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:45:52,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745316653] [2020-12-23 13:45:52,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:45:52,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:45:52,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:45:52,307 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745316653] [2020-12-23 13:45:52,308 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:45:52,308 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 13:45:52,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856627992] [2020-12-23 13:45:52,309 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 13:45:52,309 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:45:52,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 13:45:52,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 13:45:52,311 INFO L87 Difference]: Start difference. First operand 110 states and 209 transitions. Second operand 5 states. [2020-12-23 13:45:52,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:45:52,333 INFO L93 Difference]: Finished difference Result 88 states and 174 transitions. [2020-12-23 13:45:52,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 13:45:52,334 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-12-23 13:45:52,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:45:52,334 INFO L225 Difference]: With dead ends: 88 [2020-12-23 13:45:52,335 INFO L226 Difference]: Without dead ends: 0 [2020-12-23 13:45:52,335 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 13:45:52,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-23 13:45:52,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-23 13:45:52,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-23 13:45:52,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-23 13:45:52,336 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-12-23 13:45:52,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:45:52,337 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-23 13:45:52,337 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 13:45:52,337 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-23 13:45:52,337 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-23 13:45:52,337 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-23 13:45:52,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 01:45:52 BasicIcfg [2020-12-23 13:45:52,342 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-23 13:45:52,342 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-23 13:45:52,342 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-23 13:45:52,343 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-23 13:45:52,343 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:45:45" (3/4) ... [2020-12-23 13:45:52,347 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-23 13:45:52,356 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-12-23 13:45:52,357 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-12-23 13:45:52,357 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-12-23 13:45:52,364 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-12-23 13:45:52,364 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-23 13:45:52,365 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-23 13:45:52,365 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-23 13:45:52,435 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/pthread-wmm/safe031_tso.oepc.i-witness.graphml [2020-12-23 13:45:52,436 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-23 13:45:52,441 INFO L168 Benchmark]: Toolchain (without parser) took 8203.72 ms. Allocated memory was 153.1 MB in the beginning and 239.1 MB in the end (delta: 86.0 MB). Free memory was 125.7 MB in the beginning and 186.4 MB in the end (delta: -60.7 MB). Peak memory consumption was 26.4 MB. Max. memory is 8.0 GB. [2020-12-23 13:45:52,441 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 153.1 MB. Free memory was 125.8 MB in the beginning and 125.7 MB in the end (delta: 109.1 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 13:45:52,442 INFO L168 Benchmark]: CACSL2BoogieTranslator took 766.01 ms. Allocated memory is still 153.1 MB. Free memory was 125.4 MB in the beginning and 94.6 MB in the end (delta: 30.9 MB). Peak memory consumption was 30.4 MB. Max. memory is 8.0 GB. [2020-12-23 13:45:52,442 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.16 ms. Allocated memory is still 153.1 MB. Free memory was 94.6 MB in the beginning and 92.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-23 13:45:52,443 INFO L168 Benchmark]: Boogie Preprocessor took 51.00 ms. Allocated memory is still 153.1 MB. Free memory was 92.5 MB in the beginning and 91.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 13:45:52,449 INFO L168 Benchmark]: RCFGBuilder took 630.66 ms. Allocated memory is still 153.1 MB. Free memory was 91.2 MB in the beginning and 69.2 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-12-23 13:45:52,453 INFO L168 Benchmark]: TraceAbstraction took 6563.21 ms. Allocated memory was 153.1 MB in the beginning and 239.1 MB in the end (delta: 86.0 MB). Free memory was 68.8 MB in the beginning and 189.0 MB in the end (delta: -120.2 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 13:45:52,453 INFO L168 Benchmark]: Witness Printer took 93.92 ms. Allocated memory is still 239.1 MB. Free memory was 189.0 MB in the beginning and 186.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-23 13:45:52,457 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 153.1 MB. Free memory was 125.8 MB in the beginning and 125.7 MB in the end (delta: 109.1 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 766.01 ms. Allocated memory is still 153.1 MB. Free memory was 125.4 MB in the beginning and 94.6 MB in the end (delta: 30.9 MB). Peak memory consumption was 30.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 90.16 ms. Allocated memory is still 153.1 MB. Free memory was 94.6 MB in the beginning and 92.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 51.00 ms. Allocated memory is still 153.1 MB. Free memory was 92.5 MB in the beginning and 91.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 630.66 ms. Allocated memory is still 153.1 MB. Free memory was 91.2 MB in the beginning and 69.2 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6563.21 ms. Allocated memory was 153.1 MB in the beginning and 239.1 MB in the end (delta: 86.0 MB). Free memory was 68.8 MB in the beginning and 189.0 MB in the end (delta: -120.2 MB). There was no memory consumed. Max. memory is 8.0 GB. * Witness Printer took 93.92 ms. Allocated memory is still 239.1 MB. Free memory was 189.0 MB in the beginning and 186.4 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 730 VarBasedMoverChecksPositive, 33 VarBasedMoverChecksNegative, 8 SemBasedMoverChecksPositive, 25 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 45 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.9s, 82 PlacesBefore, 32 PlacesAfterwards, 74 TransitionsBefore, 23 TransitionsAfterwards, 1296 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 62 TotalNumberOfCompositions, 2656 MoverChecksTotal - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 73 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.3s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.0s, HoareTripleCheckerStatistics: 218 SDtfs, 192 SDslu, 300 SDs, 0 SdLazy, 115 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 270 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 106 NumberOfCodeBlocks, 106 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 97 ConstructedInterpolants, 0 QuantifiedInterpolants, 4879 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...