/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/safe020_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 23:35:42,145 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 23:35:42,149 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 23:35:42,191 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 23:35:42,192 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 23:35:42,193 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 23:35:42,195 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 23:35:42,197 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 23:35:42,200 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 23:35:42,201 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 23:35:42,202 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 23:35:42,204 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 23:35:42,204 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 23:35:42,205 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 23:35:42,207 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 23:35:42,208 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 23:35:42,209 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 23:35:42,211 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 23:35:42,213 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 23:35:42,215 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 23:35:42,217 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 23:35:42,220 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 23:35:42,221 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 23:35:42,222 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 23:35:42,226 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-06 23:35:42,236 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 23:35:42,237 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 23:35:42,238 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 23:35:42,245 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 23:35:42,277 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 23:35:42,277 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 23:35:42,279 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 23:35:42,279 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 23:35:42,279 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 23:35:42,280 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 23:35:42,280 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 23:35:42,280 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 23:35:42,280 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 23:35:42,281 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 23:35:42,281 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 23:35:42,281 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 23:35:42,296 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 23:35:42,296 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 23:35:42,296 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 23:35:42,296 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 23:35:42,297 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 23:35:42,297 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 23:35:42,297 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 23:35:42,297 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 23:35:42,298 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 23:35:42,298 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 23:35:42,298 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 23:35:42,298 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 23:35:42,298 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 23:35:42,299 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 23:35:42,709 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 23:35:42,746 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 23:35:42,750 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 23:35:42,752 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 23:35:42,752 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 23:35:42,754 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe020_pso.opt.i [2021-01-06 23:35:42,850 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/1b2c71bde/70a645da4ac14003adf402d9e5a7280d/FLAGb3b0cdf77 [2021-01-06 23:35:43,629 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 23:35:43,630 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe020_pso.opt.i [2021-01-06 23:35:43,658 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/1b2c71bde/70a645da4ac14003adf402d9e5a7280d/FLAGb3b0cdf77 [2021-01-06 23:35:43,853 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/1b2c71bde/70a645da4ac14003adf402d9e5a7280d [2021-01-06 23:35:43,857 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 23:35:43,859 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 23:35:43,862 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 23:35:43,862 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 23:35:43,866 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 23:35:43,867 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 11:35:43" (1/1) ... [2021-01-06 23:35:43,868 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79d2cd50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:35:43, skipping insertion in model container [2021-01-06 23:35:43,869 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 11:35:43" (1/1) ... [2021-01-06 23:35:43,882 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 23:35:43,929 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-06 23:35:44,103 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/safe020_pso.opt.i[949,962] left hand side expression in assignment: lhs: VariableLHS[~y~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[~__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[~main$tmp_guard0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard1~0,GLOBAL] [2021-01-06 23:35:44,346 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 23:35:44,361 INFO L203 MainTranslator]: Completed pre-run [2021-01-06 23:35:44,381 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe020_pso.opt.i[949,962] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p0_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p2_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard1~0,GLOBAL] [2021-01-06 23:35:44,477 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 23:35:44,615 INFO L208 MainTranslator]: Completed translation [2021-01-06 23:35:44,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:35:44 WrapperNode [2021-01-06 23:35:44,616 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 23:35:44,617 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 23:35:44,618 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 23:35:44,618 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 23:35:44,629 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:35:44" (1/1) ... [2021-01-06 23:35:44,667 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:35:44" (1/1) ... [2021-01-06 23:35:44,700 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 23:35:44,703 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 23:35:44,704 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 23:35:44,704 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 23:35:44,715 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:35:44" (1/1) ... [2021-01-06 23:35:44,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:35:44" (1/1) ... [2021-01-06 23:35:44,731 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:35:44" (1/1) ... [2021-01-06 23:35:44,731 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:35:44" (1/1) ... [2021-01-06 23:35:44,748 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:35:44" (1/1) ... [2021-01-06 23:35:44,753 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:35:44" (1/1) ... [2021-01-06 23:35:44,756 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:35:44" (1/1) ... [2021-01-06 23:35:44,766 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 23:35:44,771 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 23:35:44,771 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 23:35:44,771 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 23:35:44,772 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:35:44" (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 23:35:44,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-06 23:35:44,904 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-06 23:35:44,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 23:35:44,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-06 23:35:44,905 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-06 23:35:44,905 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-06 23:35:44,905 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-06 23:35:44,905 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-06 23:35:44,905 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-01-06 23:35:44,905 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-01-06 23:35:44,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 23:35:44,906 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-06 23:35:44,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 23:35:44,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 23:35:44,908 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 23:35:45,482 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 23:35:45,483 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-01-06 23:35:45,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:35:45 BoogieIcfgContainer [2021-01-06 23:35:45,486 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 23:35:45,490 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 23:35:45,491 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 23:35:45,494 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 23:35:45,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 11:35:43" (1/3) ... [2021-01-06 23:35:45,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@196ba9bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 11:35:45, skipping insertion in model container [2021-01-06 23:35:45,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:35:44" (2/3) ... [2021-01-06 23:35:45,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@196ba9bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 11:35:45, skipping insertion in model container [2021-01-06 23:35:45,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:35:45" (3/3) ... [2021-01-06 23:35:45,499 INFO L111 eAbstractionObserver]: Analyzing ICFG safe020_pso.opt.i [2021-01-06 23:35:45,511 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-06 23:35:45,511 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 23:35:45,517 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-06 23:35:45,518 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-06 23:35:45,565 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:45,566 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:45,566 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:45,566 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:45,567 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:45,567 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:45,567 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:45,567 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:45,568 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:45,568 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:45,568 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:45,569 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:45,570 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:45,570 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:45,570 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:45,571 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:45,571 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:45,571 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:45,571 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:45,571 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:45,572 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:45,572 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:45,572 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:45,573 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:45,573 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:45,573 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:45,573 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:45,574 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:45,576 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:45,577 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:45,577 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:45,577 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:45,578 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:45,578 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:45,579 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:45,579 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:45,581 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:45,583 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:45,583 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:45,583 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:45,589 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:45,589 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:45,590 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:45,590 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:45,595 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:45,595 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:45,596 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:45,596 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:35:45,598 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-06 23:35:45,620 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-01-06 23:35:45,643 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 23:35:45,644 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 23:35:45,644 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 23:35:45,644 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 23:35:45,644 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 23:35:45,644 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 23:35:45,645 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 23:35:45,645 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 23:35:45,658 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-01-06 23:35:45,661 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 73 transitions, 161 flow [2021-01-06 23:35:45,665 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 73 transitions, 161 flow [2021-01-06 23:35:45,667 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 73 transitions, 161 flow [2021-01-06 23:35:45,747 INFO L129 PetriNetUnfolder]: 2/70 cut-off events. [2021-01-06 23:35:45,747 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-01-06 23:35:45,762 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 70 events. 2/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2021-01-06 23:35:45,767 INFO L116 LiptonReduction]: Number of co-enabled transitions 1212 [2021-01-06 23:35:48,580 WARN L197 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2021-01-06 23:35:48,687 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-01-06 23:35:48,903 WARN L197 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2021-01-06 23:35:49,158 INFO L131 LiptonReduction]: Checked pairs total: 2226 [2021-01-06 23:35:49,158 INFO L133 LiptonReduction]: Total number of compositions: 66 [2021-01-06 23:35:49,166 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 55 flow [2021-01-06 23:35:49,204 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 226 states. [2021-01-06 23:35:49,206 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states. [2021-01-06 23:35:49,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-01-06 23:35:49,213 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:35:49,214 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:35:49,214 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:35:49,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:35:49,221 INFO L82 PathProgramCache]: Analyzing trace with hash -938351108, now seen corresponding path program 1 times [2021-01-06 23:35:49,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:35:49,231 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039536324] [2021-01-06 23:35:49,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:35:49,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:35:49,559 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 23:35:49,560 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039536324] [2021-01-06 23:35:49,566 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:35:49,567 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-01-06 23:35:49,567 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239518709] [2021-01-06 23:35:49,578 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 23:35:49,578 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:35:49,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 23:35:49,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 23:35:49,598 INFO L87 Difference]: Start difference. First operand 226 states. Second operand 3 states. [2021-01-06 23:35:49,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:35:49,651 INFO L93 Difference]: Finished difference Result 316 states and 835 transitions. [2021-01-06 23:35:49,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 23:35:49,653 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2021-01-06 23:35:49,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:35:49,671 INFO L225 Difference]: With dead ends: 316 [2021-01-06 23:35:49,672 INFO L226 Difference]: Without dead ends: 205 [2021-01-06 23:35:49,673 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 23:35:49,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2021-01-06 23:35:49,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 187. [2021-01-06 23:35:49,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2021-01-06 23:35:49,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 485 transitions. [2021-01-06 23:35:49,742 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 485 transitions. Word has length 8 [2021-01-06 23:35:49,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:35:49,744 INFO L481 AbstractCegarLoop]: Abstraction has 187 states and 485 transitions. [2021-01-06 23:35:49,744 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 23:35:49,744 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 485 transitions. [2021-01-06 23:35:49,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-01-06 23:35:49,745 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:35:49,746 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:35:49,746 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 23:35:49,746 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:35:49,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:35:49,747 INFO L82 PathProgramCache]: Analyzing trace with hash 395784729, now seen corresponding path program 1 times [2021-01-06 23:35:49,747 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:35:49,748 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269473367] [2021-01-06 23:35:49,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:35:49,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:35:49,850 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 23:35:49,850 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269473367] [2021-01-06 23:35:49,851 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:35:49,851 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 23:35:49,851 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049636900] [2021-01-06 23:35:49,852 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 23:35:49,853 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:35:49,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 23:35:49,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-01-06 23:35:49,854 INFO L87 Difference]: Start difference. First operand 187 states and 485 transitions. Second operand 4 states. [2021-01-06 23:35:49,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:35:49,875 INFO L93 Difference]: Finished difference Result 196 states and 488 transitions. [2021-01-06 23:35:49,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 23:35:49,876 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2021-01-06 23:35:49,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:35:49,879 INFO L225 Difference]: With dead ends: 196 [2021-01-06 23:35:49,879 INFO L226 Difference]: Without dead ends: 196 [2021-01-06 23:35:49,880 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 23:35:49,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2021-01-06 23:35:49,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 178. [2021-01-06 23:35:49,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2021-01-06 23:35:49,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 455 transitions. [2021-01-06 23:35:49,905 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 455 transitions. Word has length 9 [2021-01-06 23:35:49,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:35:49,905 INFO L481 AbstractCegarLoop]: Abstraction has 178 states and 455 transitions. [2021-01-06 23:35:49,906 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 23:35:49,906 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 455 transitions. [2021-01-06 23:35:49,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-01-06 23:35:49,907 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:35:49,907 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:35:49,908 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-06 23:35:49,908 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:35:49,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:35:49,909 INFO L82 PathProgramCache]: Analyzing trace with hash 975885903, now seen corresponding path program 1 times [2021-01-06 23:35:49,909 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:35:49,911 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983590417] [2021-01-06 23:35:49,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:35:49,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:35:50,024 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 23:35:50,024 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983590417] [2021-01-06 23:35:50,025 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:35:50,025 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 23:35:50,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722186253] [2021-01-06 23:35:50,025 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 23:35:50,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:35:50,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 23:35:50,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-01-06 23:35:50,032 INFO L87 Difference]: Start difference. First operand 178 states and 455 transitions. Second operand 4 states. [2021-01-06 23:35:50,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:35:50,054 INFO L93 Difference]: Finished difference Result 187 states and 464 transitions. [2021-01-06 23:35:50,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 23:35:50,055 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2021-01-06 23:35:50,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:35:50,057 INFO L225 Difference]: With dead ends: 187 [2021-01-06 23:35:50,058 INFO L226 Difference]: Without dead ends: 187 [2021-01-06 23:35:50,058 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 23:35:50,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2021-01-06 23:35:50,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 169. [2021-01-06 23:35:50,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2021-01-06 23:35:50,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 431 transitions. [2021-01-06 23:35:50,073 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 431 transitions. Word has length 9 [2021-01-06 23:35:50,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:35:50,074 INFO L481 AbstractCegarLoop]: Abstraction has 169 states and 431 transitions. [2021-01-06 23:35:50,074 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 23:35:50,074 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 431 transitions. [2021-01-06 23:35:50,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-01-06 23:35:50,076 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:35:50,076 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:35:50,076 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-06 23:35:50,076 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:35:50,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:35:50,077 INFO L82 PathProgramCache]: Analyzing trace with hash -615576110, now seen corresponding path program 1 times [2021-01-06 23:35:50,077 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:35:50,077 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682281356] [2021-01-06 23:35:50,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:35:50,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:35:50,172 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 23:35:50,173 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682281356] [2021-01-06 23:35:50,173 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:35:50,173 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 23:35:50,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027266360] [2021-01-06 23:35:50,175 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 23:35:50,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:35:50,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 23:35:50,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 23:35:50,178 INFO L87 Difference]: Start difference. First operand 169 states and 431 transitions. Second operand 4 states. [2021-01-06 23:35:50,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:35:50,227 INFO L93 Difference]: Finished difference Result 209 states and 515 transitions. [2021-01-06 23:35:50,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 23:35:50,228 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2021-01-06 23:35:50,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:35:50,233 INFO L225 Difference]: With dead ends: 209 [2021-01-06 23:35:50,233 INFO L226 Difference]: Without dead ends: 197 [2021-01-06 23:35:50,234 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 23:35:50,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2021-01-06 23:35:50,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 175. [2021-01-06 23:35:50,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2021-01-06 23:35:50,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 446 transitions. [2021-01-06 23:35:50,261 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 446 transitions. Word has length 10 [2021-01-06 23:35:50,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:35:50,262 INFO L481 AbstractCegarLoop]: Abstraction has 175 states and 446 transitions. [2021-01-06 23:35:50,262 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 23:35:50,262 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 446 transitions. [2021-01-06 23:35:50,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-01-06 23:35:50,264 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:35:50,264 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:35:50,264 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-06 23:35:50,264 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:35:50,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:35:50,265 INFO L82 PathProgramCache]: Analyzing trace with hash 187690604, now seen corresponding path program 2 times [2021-01-06 23:35:50,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:35:50,265 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535586337] [2021-01-06 23:35:50,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:35:50,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:35:50,322 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 23:35:50,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535586337] [2021-01-06 23:35:50,323 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:35:50,324 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 23:35:50,324 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118165004] [2021-01-06 23:35:50,324 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:35:50,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:35:50,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:35:50,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:35:50,325 INFO L87 Difference]: Start difference. First operand 175 states and 446 transitions. Second operand 5 states. [2021-01-06 23:35:50,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:35:50,355 INFO L93 Difference]: Finished difference Result 234 states and 564 transitions. [2021-01-06 23:35:50,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 23:35:50,355 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2021-01-06 23:35:50,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:35:50,357 INFO L225 Difference]: With dead ends: 234 [2021-01-06 23:35:50,357 INFO L226 Difference]: Without dead ends: 144 [2021-01-06 23:35:50,357 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-01-06 23:35:50,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2021-01-06 23:35:50,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 132. [2021-01-06 23:35:50,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2021-01-06 23:35:50,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 315 transitions. [2021-01-06 23:35:50,365 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 315 transitions. Word has length 10 [2021-01-06 23:35:50,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:35:50,366 INFO L481 AbstractCegarLoop]: Abstraction has 132 states and 315 transitions. [2021-01-06 23:35:50,366 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:35:50,366 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 315 transitions. [2021-01-06 23:35:50,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-01-06 23:35:50,367 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:35:50,367 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:35:50,368 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-06 23:35:50,368 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:35:50,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:35:50,369 INFO L82 PathProgramCache]: Analyzing trace with hash 1342775669, now seen corresponding path program 1 times [2021-01-06 23:35:50,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:35:50,369 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427646614] [2021-01-06 23:35:50,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:35:50,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:35:50,426 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 23:35:50,427 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427646614] [2021-01-06 23:35:50,427 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:35:50,427 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 23:35:50,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742364304] [2021-01-06 23:35:50,428 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 23:35:50,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:35:50,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 23:35:50,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 23:35:50,429 INFO L87 Difference]: Start difference. First operand 132 states and 315 transitions. Second operand 4 states. [2021-01-06 23:35:50,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:35:50,466 INFO L93 Difference]: Finished difference Result 155 states and 339 transitions. [2021-01-06 23:35:50,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 23:35:50,467 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2021-01-06 23:35:50,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:35:50,469 INFO L225 Difference]: With dead ends: 155 [2021-01-06 23:35:50,469 INFO L226 Difference]: Without dead ends: 115 [2021-01-06 23:35:50,469 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 23:35:50,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-01-06 23:35:50,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2021-01-06 23:35:50,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2021-01-06 23:35:50,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 251 transitions. [2021-01-06 23:35:50,475 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 251 transitions. Word has length 11 [2021-01-06 23:35:50,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:35:50,475 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 251 transitions. [2021-01-06 23:35:50,475 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 23:35:50,475 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 251 transitions. [2021-01-06 23:35:50,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-01-06 23:35:50,476 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:35:50,476 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:35:50,477 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-06 23:35:50,477 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:35:50,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:35:50,477 INFO L82 PathProgramCache]: Analyzing trace with hash -1283997363, now seen corresponding path program 1 times [2021-01-06 23:35:50,478 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:35:50,478 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142119920] [2021-01-06 23:35:50,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:35:50,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:35:50,535 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 23:35:50,535 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142119920] [2021-01-06 23:35:50,536 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:35:50,536 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 23:35:50,537 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895441441] [2021-01-06 23:35:50,537 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:35:50,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:35:50,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:35:50,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:35:50,539 INFO L87 Difference]: Start difference. First operand 115 states and 251 transitions. Second operand 5 states. [2021-01-06 23:35:50,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:35:50,591 INFO L93 Difference]: Finished difference Result 116 states and 234 transitions. [2021-01-06 23:35:50,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 23:35:50,591 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2021-01-06 23:35:50,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:35:50,592 INFO L225 Difference]: With dead ends: 116 [2021-01-06 23:35:50,592 INFO L226 Difference]: Without dead ends: 89 [2021-01-06 23:35:50,593 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 23:35:50,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-01-06 23:35:50,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2021-01-06 23:35:50,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2021-01-06 23:35:50,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 176 transitions. [2021-01-06 23:35:50,597 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 176 transitions. Word has length 12 [2021-01-06 23:35:50,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:35:50,602 INFO L481 AbstractCegarLoop]: Abstraction has 89 states and 176 transitions. [2021-01-06 23:35:50,602 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:35:50,602 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 176 transitions. [2021-01-06 23:35:50,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-01-06 23:35:50,609 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:35:50,609 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:35:50,610 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-06 23:35:50,610 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:35:50,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:35:50,610 INFO L82 PathProgramCache]: Analyzing trace with hash -1633997476, now seen corresponding path program 1 times [2021-01-06 23:35:50,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:35:50,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204704738] [2021-01-06 23:35:50,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:35:50,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:35:50,671 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 23:35:50,671 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204704738] [2021-01-06 23:35:50,672 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:35:50,672 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 23:35:50,672 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411237424] [2021-01-06 23:35:50,673 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 23:35:50,673 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:35:50,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 23:35:50,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-01-06 23:35:50,674 INFO L87 Difference]: Start difference. First operand 89 states and 176 transitions. Second operand 6 states. [2021-01-06 23:35:50,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:35:50,772 INFO L93 Difference]: Finished difference Result 85 states and 166 transitions. [2021-01-06 23:35:50,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-06 23:35:50,781 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2021-01-06 23:35:50,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:35:50,782 INFO L225 Difference]: With dead ends: 85 [2021-01-06 23:35:50,782 INFO L226 Difference]: Without dead ends: 50 [2021-01-06 23:35:50,783 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 23:35:50,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-01-06 23:35:50,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 46. [2021-01-06 23:35:50,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2021-01-06 23:35:50,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 83 transitions. [2021-01-06 23:35:50,787 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 83 transitions. Word has length 14 [2021-01-06 23:35:50,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:35:50,787 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 83 transitions. [2021-01-06 23:35:50,787 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 23:35:50,787 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 83 transitions. [2021-01-06 23:35:50,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-01-06 23:35:50,788 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:35:50,788 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:35:50,789 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-06 23:35:50,789 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:35:50,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:35:50,790 INFO L82 PathProgramCache]: Analyzing trace with hash -1390745954, now seen corresponding path program 1 times [2021-01-06 23:35:50,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:35:50,797 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398253404] [2021-01-06 23:35:50,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:35:50,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:35:50,880 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 23:35:50,881 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398253404] [2021-01-06 23:35:50,881 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:35:50,881 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 23:35:50,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252737025] [2021-01-06 23:35:50,883 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 23:35:50,884 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:35:50,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 23:35:50,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 23:35:50,885 INFO L87 Difference]: Start difference. First operand 46 states and 83 transitions. Second operand 3 states. [2021-01-06 23:35:50,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:35:50,895 INFO L93 Difference]: Finished difference Result 59 states and 104 transitions. [2021-01-06 23:35:50,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 23:35:50,896 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2021-01-06 23:35:50,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:35:50,897 INFO L225 Difference]: With dead ends: 59 [2021-01-06 23:35:50,897 INFO L226 Difference]: Without dead ends: 33 [2021-01-06 23:35:50,898 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 [2021-01-06 23:35:50,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-01-06 23:35:50,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-01-06 23:35:50,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2021-01-06 23:35:50,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 51 transitions. [2021-01-06 23:35:50,900 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 51 transitions. Word has length 16 [2021-01-06 23:35:50,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:35:50,901 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 51 transitions. [2021-01-06 23:35:50,901 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 23:35:50,901 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 51 transitions. [2021-01-06 23:35:50,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-01-06 23:35:50,902 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:35:50,902 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:35:50,903 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-06 23:35:50,903 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:35:50,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:35:50,904 INFO L82 PathProgramCache]: Analyzing trace with hash -1414383408, now seen corresponding path program 2 times [2021-01-06 23:35:50,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:35:50,904 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906647223] [2021-01-06 23:35:50,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:35:50,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:35:50,983 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 23:35:50,983 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906647223] [2021-01-06 23:35:50,983 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:35:50,984 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 23:35:50,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139542160] [2021-01-06 23:35:50,984 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 23:35:50,984 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:35:50,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 23:35:50,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 23:35:50,985 INFO L87 Difference]: Start difference. First operand 33 states and 51 transitions. Second operand 4 states. [2021-01-06 23:35:51,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:35:51,000 INFO L93 Difference]: Finished difference Result 32 states and 50 transitions. [2021-01-06 23:35:51,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 23:35:51,001 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2021-01-06 23:35:51,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:35:51,001 INFO L225 Difference]: With dead ends: 32 [2021-01-06 23:35:51,001 INFO L226 Difference]: Without dead ends: 0 [2021-01-06 23:35:51,002 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 23:35:51,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-01-06 23:35:51,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-01-06 23:35:51,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-01-06 23:35:51,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-01-06 23:35:51,003 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2021-01-06 23:35:51,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:35:51,004 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-01-06 23:35:51,004 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 23:35:51,004 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-01-06 23:35:51,004 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-06 23:35:51,005 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-01-06 23:35:51,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.01 11:35:51 BasicIcfg [2021-01-06 23:35:51,009 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-06 23:35:51,010 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-01-06 23:35:51,010 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-01-06 23:35:51,010 INFO L275 PluginConnector]: Witness Printer initialized [2021-01-06 23:35:51,010 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:35:45" (3/4) ... [2021-01-06 23:35:51,016 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-01-06 23:35:51,025 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2021-01-06 23:35:51,025 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2021-01-06 23:35:51,025 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2021-01-06 23:35:51,033 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-01-06 23:35:51,033 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-01-06 23:35:51,034 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-01-06 23:35:51,034 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-01-06 23:35:51,107 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/pthread-wmm/safe020_pso.opt.i-witness.graphml [2021-01-06 23:35:51,110 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-01-06 23:35:51,112 INFO L168 Benchmark]: Toolchain (without parser) took 7252.86 ms. Allocated memory was 163.6 MB in the beginning and 245.4 MB in the end (delta: 81.8 MB). Free memory was 137.9 MB in the beginning and 197.4 MB in the end (delta: -59.5 MB). Peak memory consumption was 23.7 MB. Max. memory is 8.0 GB. [2021-01-06 23:35:51,114 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 163.6 MB. Free memory is still 139.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 23:35:51,115 INFO L168 Benchmark]: CACSL2BoogieTranslator took 755.08 ms. Allocated memory is still 163.6 MB. Free memory was 137.9 MB in the beginning and 106.4 MB in the end (delta: 31.5 MB). Peak memory consumption was 31.5 MB. Max. memory is 8.0 GB. [2021-01-06 23:35:51,116 INFO L168 Benchmark]: Boogie Procedure Inliner took 84.07 ms. Allocated memory is still 163.6 MB. Free memory was 106.4 MB in the beginning and 104.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-01-06 23:35:51,116 INFO L168 Benchmark]: Boogie Preprocessor took 63.18 ms. Allocated memory is still 163.6 MB. Free memory was 104.4 MB in the beginning and 103.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-01-06 23:35:51,117 INFO L168 Benchmark]: RCFGBuilder took 715.84 ms. Allocated memory is still 163.6 MB. Free memory was 103.1 MB in the beginning and 81.3 MB in the end (delta: 21.8 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2021-01-06 23:35:51,117 INFO L168 Benchmark]: TraceAbstraction took 5518.63 ms. Allocated memory was 163.6 MB in the beginning and 245.4 MB in the end (delta: 81.8 MB). Free memory was 80.7 MB in the beginning and 200.0 MB in the end (delta: -119.3 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 23:35:51,118 INFO L168 Benchmark]: Witness Printer took 100.82 ms. Allocated memory is still 245.4 MB. Free memory was 200.0 MB in the beginning and 197.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-01-06 23:35:51,126 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 163.6 MB. Free memory is still 139.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 755.08 ms. Allocated memory is still 163.6 MB. Free memory was 137.9 MB in the beginning and 106.4 MB in the end (delta: 31.5 MB). Peak memory consumption was 31.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 84.07 ms. Allocated memory is still 163.6 MB. Free memory was 106.4 MB in the beginning and 104.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 63.18 ms. Allocated memory is still 163.6 MB. Free memory was 104.4 MB in the beginning and 103.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 715.84 ms. Allocated memory is still 163.6 MB. Free memory was 103.1 MB in the beginning and 81.3 MB in the end (delta: 21.8 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5518.63 ms. Allocated memory was 163.6 MB in the beginning and 245.4 MB in the end (delta: 81.8 MB). Free memory was 80.7 MB in the beginning and 200.0 MB in the end (delta: -119.3 MB). There was no memory consumed. Max. memory is 8.0 GB. * Witness Printer took 100.82 ms. Allocated memory is still 245.4 MB. Free memory was 200.0 MB in the beginning and 197.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 727 VarBasedMoverChecksPositive, 30 VarBasedMoverChecksNegative, 4 SemBasedMoverChecksPositive, 26 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 40 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.4s, 81 PlacesBefore, 30 PlacesAfterwards, 73 TransitionsBefore, 20 TransitionsAfterwards, 1212 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 66 TotalNumberOfCompositions, 2226 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, 72 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.3s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.5s, HoareTripleCheckerStatistics: 166 SDtfs, 180 SDslu, 215 SDs, 0 SdLazy, 126 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=226occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 92 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 115 NumberOfCodeBlocks, 115 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 105 ConstructedInterpolants, 0 QuantifiedInterpolants, 4619 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...