/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/safe022_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 13:43:36,974 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 13:43:36,978 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 13:43:37,035 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 13:43:37,036 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 13:43:37,041 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 13:43:37,045 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 13:43:37,051 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 13:43:37,055 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 13:43:37,061 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 13:43:37,065 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 13:43:37,066 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 13:43:37,067 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 13:43:37,070 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 13:43:37,072 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 13:43:37,074 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 13:43:37,075 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 13:43:37,078 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 13:43:37,117 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 13:43:37,128 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 13:43:37,130 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 13:43:37,133 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 13:43:37,134 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 13:43:37,138 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 13:43:37,143 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-23 13:43:37,154 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 13:43:37,155 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 13:43:37,157 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 13:43:37,158 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 13:43:37,159 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 13:43:37,160 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 13:43:37,161 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 13:43:37,167 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 13:43:37,168 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 13:43:37,169 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 13:43:37,170 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 13:43:37,175 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 13:43:37,219 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 13:43:37,219 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 13:43:37,225 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 13:43:37,225 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 13:43:37,225 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 13:43:37,226 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 13:43:37,226 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 13:43:37,226 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 13:43:37,226 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 13:43:37,227 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 13:43:37,228 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 13:43:37,228 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 13:43:37,229 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 13:43:37,230 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 13:43:37,230 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 13:43:37,231 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 13:43:37,231 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 13:43:37,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 13:43:37,231 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 13:43:37,232 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 13:43:37,232 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 13:43:37,237 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 13:43:37,237 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 13:43:37,238 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 13:43:37,238 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 13:43:37,239 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 13:43:37,667 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 13:43:37,699 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 13:43:37,702 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 13:43:37,704 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 13:43:37,705 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 13:43:37,706 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe022_tso.opt.i [2020-12-23 13:43:37,795 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/9a30480d8/1939d09500424a5693ec4e60cc853fb2/FLAGa9b2fd8a7 [2020-12-23 13:43:38,559 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 13:43:38,560 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe022_tso.opt.i [2020-12-23 13:43:38,582 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/9a30480d8/1939d09500424a5693ec4e60cc853fb2/FLAGa9b2fd8a7 [2020-12-23 13:43:38,831 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/9a30480d8/1939d09500424a5693ec4e60cc853fb2 [2020-12-23 13:43:38,840 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 13:43:38,843 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 13:43:38,847 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 13:43:38,847 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 13:43:38,851 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 13:43:38,853 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:43:38" (1/1) ... [2020-12-23 13:43:38,855 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73db5d64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:43:38, skipping insertion in model container [2020-12-23 13:43:38,856 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:43:38" (1/1) ... [2020-12-23 13:43:38,865 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 13:43:38,936 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-23 13:43:39,140 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/safe022_tso.opt.i[949,962] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p1_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p1_EBX~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$tmp_guard1~0,GLOBAL] [2020-12-23 13:43:39,309 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 13:43:39,324 INFO L203 MainTranslator]: Completed pre-run [2020-12-23 13:43:39,342 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe022_tso.opt.i[949,962] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p1_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p1_EBX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard1~0,GLOBAL] [2020-12-23 13:43:39,421 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 13:43:39,534 INFO L208 MainTranslator]: Completed translation [2020-12-23 13:43:39,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:43:39 WrapperNode [2020-12-23 13:43:39,535 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 13:43:39,537 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 13:43:39,537 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 13:43:39,537 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 13:43:39,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:43:39" (1/1) ... [2020-12-23 13:43:39,596 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:43:39" (1/1) ... [2020-12-23 13:43:39,637 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 13:43:39,641 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 13:43:39,641 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 13:43:39,642 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 13:43:39,653 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:43:39" (1/1) ... [2020-12-23 13:43:39,654 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:43:39" (1/1) ... [2020-12-23 13:43:39,671 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:43:39" (1/1) ... [2020-12-23 13:43:39,674 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:43:39" (1/1) ... [2020-12-23 13:43:39,686 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:43:39" (1/1) ... [2020-12-23 13:43:39,696 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:43:39" (1/1) ... [2020-12-23 13:43:39,698 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:43:39" (1/1) ... [2020-12-23 13:43:39,705 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 13:43:39,706 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 13:43:39,706 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 13:43:39,706 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 13:43:39,707 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:43:39" (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 13:43:39,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-23 13:43:39,852 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-23 13:43:39,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 13:43:39,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-23 13:43:39,852 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-23 13:43:39,853 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-23 13:43:39,853 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-23 13:43:39,854 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-23 13:43:39,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 13:43:39,855 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-23 13:43:39,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 13:43:39,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 13:43:39,858 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 13:43:40,339 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 13:43:40,339 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-23 13:43:40,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:43:40 BoogieIcfgContainer [2020-12-23 13:43:40,342 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 13:43:40,344 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 13:43:40,344 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 13:43:40,348 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 13:43:40,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 01:43:38" (1/3) ... [2020-12-23 13:43:40,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55ed812c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:43:40, skipping insertion in model container [2020-12-23 13:43:40,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:43:39" (2/3) ... [2020-12-23 13:43:40,350 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55ed812c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:43:40, skipping insertion in model container [2020-12-23 13:43:40,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:43:40" (3/3) ... [2020-12-23 13:43:40,352 INFO L111 eAbstractionObserver]: Analyzing ICFG safe022_tso.opt.i [2020-12-23 13:43:40,359 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-23 13:43:40,360 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 13:43:40,366 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 13:43:40,368 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-23 13:43:40,406 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:43:40,407 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:43:40,407 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:43:40,407 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:43:40,407 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:43:40,408 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:43:40,408 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:43:40,408 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:43:40,409 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:43:40,409 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:43:40,409 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:43:40,409 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:43:40,410 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:43:40,410 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:43:40,410 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:43:40,410 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:43:40,411 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:43:40,411 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:43:40,411 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:43:40,411 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:43:40,412 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:43:40,412 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:43:40,412 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:43:40,412 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:43:40,415 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:43:40,416 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:43:40,416 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:43:40,416 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:43:40,423 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:43:40,424 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:43:40,424 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:43:40,424 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:43:40,427 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-23 13:43:40,450 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-23 13:43:40,479 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 13:43:40,479 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 13:43:40,479 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 13:43:40,480 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 13:43:40,480 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 13:43:40,480 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 13:43:40,480 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 13:43:40,480 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 13:43:40,495 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-23 13:43:40,498 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 61 transitions, 132 flow [2020-12-23 13:43:40,501 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 61 transitions, 132 flow [2020-12-23 13:43:40,504 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 61 transitions, 132 flow [2020-12-23 13:43:40,546 INFO L129 PetriNetUnfolder]: 2/59 cut-off events. [2020-12-23 13:43:40,546 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-12-23 13:43:40,550 INFO L84 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 59 events. 2/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 35 event pairs, 0 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2020-12-23 13:43:40,553 INFO L116 LiptonReduction]: Number of co-enabled transitions 696 [2020-12-23 13:43:42,384 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-12-23 13:43:43,179 WARN L197 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-12-23 13:43:43,283 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-12-23 13:43:43,537 WARN L197 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-12-23 13:43:43,644 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-12-23 13:43:43,649 INFO L131 LiptonReduction]: Checked pairs total: 1534 [2020-12-23 13:43:43,649 INFO L133 LiptonReduction]: Total number of compositions: 54 [2020-12-23 13:43:43,658 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 23 places, 17 transitions, 44 flow [2020-12-23 13:43:43,672 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 90 states. [2020-12-23 13:43:43,674 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states. [2020-12-23 13:43:43,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-23 13:43:43,681 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:43:43,681 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-23 13:43:43,682 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:43:43,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:43:43,688 INFO L82 PathProgramCache]: Analyzing trace with hash -1865753681, now seen corresponding path program 1 times [2020-12-23 13:43:43,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:43:43,698 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921888047] [2020-12-23 13:43:43,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:43:43,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:43:43,877 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 13:43:43,878 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921888047] [2020-12-23 13:43:43,879 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:43:43,880 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 13:43:43,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430866876] [2020-12-23 13:43:43,886 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-23 13:43:43,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:43:43,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-23 13:43:43,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 13:43:43,907 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 2 states. [2020-12-23 13:43:43,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:43:43,933 INFO L93 Difference]: Finished difference Result 90 states and 200 transitions. [2020-12-23 13:43:43,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-23 13:43:43,934 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2020-12-23 13:43:43,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:43:43,947 INFO L225 Difference]: With dead ends: 90 [2020-12-23 13:43:43,947 INFO L226 Difference]: Without dead ends: 74 [2020-12-23 13:43:43,949 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 13:43:43,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-12-23 13:43:43,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-12-23 13:43:43,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-12-23 13:43:43,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 160 transitions. [2020-12-23 13:43:43,998 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 160 transitions. Word has length 6 [2020-12-23 13:43:43,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:43:43,999 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 160 transitions. [2020-12-23 13:43:43,999 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-23 13:43:43,999 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 160 transitions. [2020-12-23 13:43:44,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-23 13:43:44,000 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:43:44,001 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:43:44,001 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 13:43:44,001 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:43:44,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:43:44,002 INFO L82 PathProgramCache]: Analyzing trace with hash -2003798512, now seen corresponding path program 1 times [2020-12-23 13:43:44,002 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:43:44,003 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929985599] [2020-12-23 13:43:44,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:43:44,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:43:44,217 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 13:43:44,217 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929985599] [2020-12-23 13:43:44,218 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:43:44,218 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 13:43:44,218 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844701387] [2020-12-23 13:43:44,220 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 13:43:44,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:43:44,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 13:43:44,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 13:43:44,221 INFO L87 Difference]: Start difference. First operand 74 states and 160 transitions. Second operand 4 states. [2020-12-23 13:43:44,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:43:44,261 INFO L93 Difference]: Finished difference Result 82 states and 166 transitions. [2020-12-23 13:43:44,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 13:43:44,262 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-12-23 13:43:44,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:43:44,264 INFO L225 Difference]: With dead ends: 82 [2020-12-23 13:43:44,266 INFO L226 Difference]: Without dead ends: 66 [2020-12-23 13:43:44,267 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 13:43:44,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-12-23 13:43:44,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-12-23 13:43:44,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-12-23 13:43:44,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 138 transitions. [2020-12-23 13:43:44,285 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 138 transitions. Word has length 7 [2020-12-23 13:43:44,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:43:44,285 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 138 transitions. [2020-12-23 13:43:44,285 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 13:43:44,286 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 138 transitions. [2020-12-23 13:43:44,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-23 13:43:44,288 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:43:44,289 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:43:44,290 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 13:43:44,290 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:43:44,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:43:44,296 INFO L82 PathProgramCache]: Analyzing trace with hash -1988772591, now seen corresponding path program 1 times [2020-12-23 13:43:44,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:43:44,297 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457684527] [2020-12-23 13:43:44,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:43:44,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:43:44,400 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 13:43:44,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457684527] [2020-12-23 13:43:44,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:43:44,401 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 13:43:44,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960564488] [2020-12-23 13:43:44,402 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 13:43:44,402 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:43:44,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 13:43:44,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 13:43:44,403 INFO L87 Difference]: Start difference. First operand 66 states and 138 transitions. Second operand 5 states. [2020-12-23 13:43:44,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:43:44,463 INFO L93 Difference]: Finished difference Result 78 states and 155 transitions. [2020-12-23 13:43:44,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-23 13:43:44,464 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2020-12-23 13:43:44,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:43:44,467 INFO L225 Difference]: With dead ends: 78 [2020-12-23 13:43:44,467 INFO L226 Difference]: Without dead ends: 66 [2020-12-23 13:43:44,468 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-23 13:43:44,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-12-23 13:43:44,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-12-23 13:43:44,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-12-23 13:43:44,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 134 transitions. [2020-12-23 13:43:44,478 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 134 transitions. Word has length 8 [2020-12-23 13:43:44,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:43:44,479 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 134 transitions. [2020-12-23 13:43:44,479 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 13:43:44,479 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 134 transitions. [2020-12-23 13:43:44,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-23 13:43:44,480 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:43:44,480 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:43:44,480 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 13:43:44,481 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:43:44,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:43:44,481 INFO L82 PathProgramCache]: Analyzing trace with hash -1523832979, now seen corresponding path program 1 times [2020-12-23 13:43:44,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:43:44,482 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043101603] [2020-12-23 13:43:44,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:43:44,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:43:44,596 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 13:43:44,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043101603] [2020-12-23 13:43:44,597 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:43:44,598 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 13:43:44,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961936203] [2020-12-23 13:43:44,598 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 13:43:44,599 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:43:44,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 13:43:44,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-23 13:43:44,606 INFO L87 Difference]: Start difference. First operand 66 states and 134 transitions. Second operand 6 states. [2020-12-23 13:43:44,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:43:44,655 INFO L93 Difference]: Finished difference Result 74 states and 144 transitions. [2020-12-23 13:43:44,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 13:43:44,657 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2020-12-23 13:43:44,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:43:44,659 INFO L225 Difference]: With dead ends: 74 [2020-12-23 13:43:44,659 INFO L226 Difference]: Without dead ends: 42 [2020-12-23 13:43:44,660 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-12-23 13:43:44,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-12-23 13:43:44,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-12-23 13:43:44,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-12-23 13:43:44,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 76 transitions. [2020-12-23 13:43:44,674 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 76 transitions. Word has length 9 [2020-12-23 13:43:44,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:43:44,674 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 76 transitions. [2020-12-23 13:43:44,674 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 13:43:44,674 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 76 transitions. [2020-12-23 13:43:44,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-23 13:43:44,675 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:43:44,676 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:43:44,676 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 13:43:44,676 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:43:44,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:43:44,678 INFO L82 PathProgramCache]: Analyzing trace with hash 567543910, now seen corresponding path program 1 times [2020-12-23 13:43:44,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:43:44,678 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185998300] [2020-12-23 13:43:44,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:43:44,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:43:44,770 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 13:43:44,771 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185998300] [2020-12-23 13:43:44,771 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:43:44,771 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 13:43:44,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437782596] [2020-12-23 13:43:44,772 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 13:43:44,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:43:44,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 13:43:44,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 13:43:44,774 INFO L87 Difference]: Start difference. First operand 42 states and 76 transitions. Second operand 3 states. [2020-12-23 13:43:44,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:43:44,787 INFO L93 Difference]: Finished difference Result 33 states and 51 transitions. [2020-12-23 13:43:44,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 13:43:44,789 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-12-23 13:43:44,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:43:44,790 INFO L225 Difference]: With dead ends: 33 [2020-12-23 13:43:44,790 INFO L226 Difference]: Without dead ends: 33 [2020-12-23 13:43:44,791 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 13:43:44,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-12-23 13:43:44,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-12-23 13:43:44,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-12-23 13:43:44,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 51 transitions. [2020-12-23 13:43:44,804 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 51 transitions. Word has length 10 [2020-12-23 13:43:44,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:43:44,805 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 51 transitions. [2020-12-23 13:43:44,805 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 13:43:44,805 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 51 transitions. [2020-12-23 13:43:44,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-23 13:43:44,806 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:43:44,806 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:43:44,806 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-23 13:43:44,806 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:43:44,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:43:44,807 INFO L82 PathProgramCache]: Analyzing trace with hash 1481014395, now seen corresponding path program 1 times [2020-12-23 13:43:44,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:43:44,807 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949415786] [2020-12-23 13:43:44,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:43:44,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:43:44,886 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 13:43:44,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949415786] [2020-12-23 13:43:44,887 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:43:44,887 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 13:43:44,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190001541] [2020-12-23 13:43:44,888 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 13:43:44,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:43:44,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 13:43:44,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 13:43:44,889 INFO L87 Difference]: Start difference. First operand 33 states and 51 transitions. Second operand 4 states. [2020-12-23 13:43:44,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:43:44,901 INFO L93 Difference]: Finished difference Result 23 states and 31 transitions. [2020-12-23 13:43:44,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 13:43:44,902 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-12-23 13:43:44,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:43:44,902 INFO L225 Difference]: With dead ends: 23 [2020-12-23 13:43:44,903 INFO L226 Difference]: Without dead ends: 23 [2020-12-23 13:43:44,903 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 13:43:44,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-12-23 13:43:44,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-12-23 13:43:44,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-12-23 13:43:44,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 31 transitions. [2020-12-23 13:43:44,906 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 31 transitions. Word has length 11 [2020-12-23 13:43:44,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:43:44,906 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 31 transitions. [2020-12-23 13:43:44,906 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 13:43:44,906 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2020-12-23 13:43:44,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-23 13:43:44,907 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:43:44,907 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:43:44,907 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-23 13:43:44,908 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:43:44,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:43:44,908 INFO L82 PathProgramCache]: Analyzing trace with hash 1576465132, now seen corresponding path program 1 times [2020-12-23 13:43:44,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:43:44,909 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474178620] [2020-12-23 13:43:44,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:43:44,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:43:44,955 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 13:43:44,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474178620] [2020-12-23 13:43:44,956 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:43:44,956 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 13:43:44,957 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857071364] [2020-12-23 13:43:44,957 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 13:43:44,957 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:43:44,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 13:43:44,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 13:43:44,958 INFO L87 Difference]: Start difference. First operand 23 states and 31 transitions. Second operand 5 states. [2020-12-23 13:43:44,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:43:44,983 INFO L93 Difference]: Finished difference Result 22 states and 30 transitions. [2020-12-23 13:43:44,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 13:43:44,983 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-12-23 13:43:44,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:43:44,984 INFO L225 Difference]: With dead ends: 22 [2020-12-23 13:43:44,984 INFO L226 Difference]: Without dead ends: 0 [2020-12-23 13:43:44,984 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-23 13:43:44,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-23 13:43:44,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-23 13:43:44,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-23 13:43:44,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-23 13:43:44,985 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-12-23 13:43:44,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:43:44,986 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-23 13:43:44,986 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 13:43:44,986 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-23 13:43:44,986 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-23 13:43:44,986 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-23 13:43:44,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 01:43:44 BasicIcfg [2020-12-23 13:43:44,990 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-23 13:43:44,991 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-23 13:43:44,991 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-23 13:43:44,991 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-23 13:43:44,992 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:43:40" (3/4) ... [2020-12-23 13:43:44,996 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-23 13:43:45,004 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-12-23 13:43:45,005 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-12-23 13:43:45,010 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-12-23 13:43:45,010 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-23 13:43:45,011 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-23 13:43:45,011 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-23 13:43:45,057 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/pthread-wmm/safe022_tso.opt.i-witness.graphml [2020-12-23 13:43:45,057 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-23 13:43:45,059 INFO L168 Benchmark]: Toolchain (without parser) took 6215.61 ms. Allocated memory was 151.0 MB in the beginning and 182.5 MB in the end (delta: 31.5 MB). Free memory was 131.2 MB in the beginning and 60.5 MB in the end (delta: 70.8 MB). Peak memory consumption was 102.4 MB. Max. memory is 8.0 GB. [2020-12-23 13:43:45,060 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory is still 123.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 13:43:45,060 INFO L168 Benchmark]: CACSL2BoogieTranslator took 689.27 ms. Allocated memory is still 151.0 MB. Free memory was 130.9 MB in the beginning and 100.6 MB in the end (delta: 30.3 MB). Peak memory consumption was 30.4 MB. Max. memory is 8.0 GB. [2020-12-23 13:43:45,061 INFO L168 Benchmark]: Boogie Procedure Inliner took 102.70 ms. Allocated memory is still 151.0 MB. Free memory was 100.6 MB in the beginning and 132.4 MB in the end (delta: -31.8 MB). Peak memory consumption was 2.7 MB. Max. memory is 8.0 GB. [2020-12-23 13:43:45,062 INFO L168 Benchmark]: Boogie Preprocessor took 63.67 ms. Allocated memory is still 151.0 MB. Free memory was 132.4 MB in the beginning and 130.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-23 13:43:45,062 INFO L168 Benchmark]: RCFGBuilder took 636.36 ms. Allocated memory is still 151.0 MB. Free memory was 130.8 MB in the beginning and 110.9 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-12-23 13:43:45,063 INFO L168 Benchmark]: TraceAbstraction took 4646.81 ms. Allocated memory was 151.0 MB in the beginning and 182.5 MB in the end (delta: 31.5 MB). Free memory was 110.9 MB in the beginning and 63.1 MB in the end (delta: 47.8 MB). Peak memory consumption was 79.8 MB. Max. memory is 8.0 GB. [2020-12-23 13:43:45,064 INFO L168 Benchmark]: Witness Printer took 65.84 ms. Allocated memory is still 182.5 MB. Free memory was 63.1 MB in the beginning and 60.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-23 13:43:45,067 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory is still 123.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 689.27 ms. Allocated memory is still 151.0 MB. Free memory was 130.9 MB in the beginning and 100.6 MB in the end (delta: 30.3 MB). Peak memory consumption was 30.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 102.70 ms. Allocated memory is still 151.0 MB. Free memory was 100.6 MB in the beginning and 132.4 MB in the end (delta: -31.8 MB). Peak memory consumption was 2.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 63.67 ms. Allocated memory is still 151.0 MB. Free memory was 132.4 MB in the beginning and 130.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 636.36 ms. Allocated memory is still 151.0 MB. Free memory was 130.8 MB in the beginning and 110.9 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4646.81 ms. Allocated memory was 151.0 MB in the beginning and 182.5 MB in the end (delta: 31.5 MB). Free memory was 110.9 MB in the beginning and 63.1 MB in the end (delta: 47.8 MB). Peak memory consumption was 79.8 MB. Max. memory is 8.0 GB. * Witness Printer took 65.84 ms. Allocated memory is still 182.5 MB. Free memory was 63.1 MB in the beginning and 60.5 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 504 VarBasedMoverChecksPositive, 24 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 22 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 54 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.1s, 66 PlacesBefore, 23 PlacesAfterwards, 61 TransitionsBefore, 17 TransitionsAfterwards, 696 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 54 TotalNumberOfCompositions, 1534 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 3 procedures, 60 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.5s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.1s, HoareTripleCheckerStatistics: 97 SDtfs, 96 SDslu, 110 SDs, 0 SdLazy, 53 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred 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: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 57 ConstructedInterpolants, 0 QuantifiedInterpolants, 1797 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...