/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe017_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 15:38:42,476 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 15:38:42,481 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 15:38:42,535 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 15:38:42,536 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 15:38:42,540 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 15:38:42,543 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 15:38:42,551 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 15:38:42,567 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 15:38:42,573 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 15:38:42,574 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 15:38:42,576 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 15:38:42,576 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 15:38:42,579 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 15:38:42,581 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 15:38:42,583 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 15:38:42,585 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 15:38:42,588 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 15:38:42,594 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 15:38:42,602 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 15:38:42,603 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 15:38:42,605 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 15:38:42,606 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 15:38:42,608 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 15:38:42,616 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-09 15:38:42,617 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-09 15:38:42,617 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-09 15:38:42,619 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-09 15:38:42,620 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-09 15:38:42,621 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-09 15:38:42,621 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 15:38:42,622 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 15:38:42,624 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 15:38:42,625 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 15:38:42,626 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 15:38:42,626 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 15:38:42,627 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 15:38:42,627 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 15:38:42,627 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 15:38:42,628 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 15:38:42,629 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 15:38:42,630 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-11-09 15:38:42,681 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 15:38:42,681 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 15:38:42,686 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 15:38:42,686 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 15:38:42,687 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 15:38:42,688 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 15:38:42,688 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 15:38:42,688 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 15:38:42,689 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 15:38:42,689 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 15:38:42,690 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 15:38:42,690 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 15:38:42,691 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 15:38:42,691 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 15:38:42,691 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 15:38:42,691 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 15:38:42,691 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 15:38:42,692 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 15:38:42,692 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 15:38:42,694 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 15:38:42,694 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 15:38:42,699 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 15:38:42,700 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 15:38:42,700 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-11-09 15:38:42,700 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 15:38:42,700 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 15:38:42,700 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 15:38:42,701 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-11-09 15:38:42,701 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-11-09 15:38:42,703 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 15:38:42,703 INFO L138 SettingsManager]: * Interpolant automaton=MCR 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 15:38:43,117 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 15:38:43,151 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 15:38:43,154 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 15:38:43,155 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 15:38:43,156 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 15:38:43,157 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe017_tso.opt.i [2020-11-09 15:38:43,240 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c853f16b4/773eeeab18744de89c5fede52e9ce5b6/FLAG18583c7af [2020-11-09 15:38:43,921 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 15:38:43,921 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe017_tso.opt.i [2020-11-09 15:38:43,936 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c853f16b4/773eeeab18744de89c5fede52e9ce5b6/FLAG18583c7af [2020-11-09 15:38:44,160 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c853f16b4/773eeeab18744de89c5fede52e9ce5b6 [2020-11-09 15:38:44,164 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 15:38:44,172 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 15:38:44,174 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 15:38:44,175 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 15:38:44,179 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 15:38:44,181 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:38:44" (1/1) ... [2020-11-09 15:38:44,190 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cdacace and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:38:44, skipping insertion in model container [2020-11-09 15:38:44,190 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:38:44" (1/1) ... [2020-11-09 15:38:44,198 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 15:38:44,267 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 15:38:44,588 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 15:38:44,598 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 15:38:44,685 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 15:38:44,802 INFO L208 MainTranslator]: Completed translation [2020-11-09 15:38:44,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:38:44 WrapperNode [2020-11-09 15:38:44,804 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 15:38:44,805 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 15:38:44,805 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 15:38:44,806 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 15:38:44,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:38:44" (1/1) ... [2020-11-09 15:38:44,829 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:38:44" (1/1) ... [2020-11-09 15:38:44,862 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 15:38:44,864 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 15:38:44,864 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 15:38:44,864 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 15:38:44,873 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:38:44" (1/1) ... [2020-11-09 15:38:44,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:38:44" (1/1) ... [2020-11-09 15:38:44,891 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:38:44" (1/1) ... [2020-11-09 15:38:44,891 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:38:44" (1/1) ... [2020-11-09 15:38:44,902 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:38:44" (1/1) ... [2020-11-09 15:38:44,908 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:38:44" (1/1) ... [2020-11-09 15:38:44,910 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:38:44" (1/1) ... [2020-11-09 15:38:44,914 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 15:38:44,922 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 15:38:44,924 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 15:38:44,924 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 15:38:44,925 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:38:44" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-11-09 15:38:44,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 15:38:44,992 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 15:38:44,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 15:38:44,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 15:38:44,993 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 15:38:44,993 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 15:38:44,993 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 15:38:44,993 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 15:38:44,993 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-09 15:38:44,994 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-09 15:38:44,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 15:38:44,994 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 15:38:44,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 15:38:44,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 15:38:44,996 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-09 15:38:45,521 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 15:38:45,521 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 15:38:45,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:38:45 BoogieIcfgContainer [2020-11-09 15:38:45,526 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 15:38:45,529 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 15:38:45,530 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 15:38:45,533 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 15:38:45,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 03:38:44" (1/3) ... [2020-11-09 15:38:45,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d9775b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:38:45, skipping insertion in model container [2020-11-09 15:38:45,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:38:44" (2/3) ... [2020-11-09 15:38:45,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d9775b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:38:45, skipping insertion in model container [2020-11-09 15:38:45,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:38:45" (3/3) ... [2020-11-09 15:38:45,537 INFO L111 eAbstractionObserver]: Analyzing ICFG safe017_tso.opt.i [2020-11-09 15:38:45,556 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 15:38:45,557 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-09 15:38:45,561 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 15:38:45,562 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 15:38:45,609 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:38:45,609 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:38:45,610 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:38:45,610 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:38:45,610 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:38:45,610 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:38:45,610 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:38:45,610 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:38:45,611 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:38:45,611 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:38:45,611 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:38:45,611 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:38:45,613 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:38:45,613 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:38:45,613 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:38:45,613 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:38:45,613 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:38:45,614 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:38:45,614 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:38:45,614 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:38:45,614 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:38:45,615 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:38:45,615 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:38:45,615 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:38:45,615 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:38:45,617 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:38:45,617 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:38:45,617 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:38:45,619 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:38:45,619 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:38:45,619 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:38:45,619 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:38:45,621 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:38:45,621 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:38:45,622 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:38:45,622 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:38:45,625 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:38:45,626 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:38:45,627 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:38:45,627 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:38:45,633 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:38:45,634 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:38:45,634 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:38:45,634 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:38:45,637 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:38:45,637 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:38:45,638 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:38:45,638 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:38:45,640 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 15:38:45,652 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-09 15:38:45,675 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 15:38:45,676 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 15:38:45,676 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 15:38:45,676 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 15:38:45,676 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 15:38:45,676 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 15:38:45,676 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 15:38:45,676 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 15:38:45,688 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 15:38:45,689 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 76 transitions, 167 flow [2020-11-09 15:38:45,692 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 76 transitions, 167 flow [2020-11-09 15:38:45,693 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 76 transitions, 167 flow [2020-11-09 15:38:45,735 INFO L129 PetriNetUnfolder]: 3/73 cut-off events. [2020-11-09 15:38:45,735 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 15:38:45,739 INFO L84 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 73 events. 3/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 58 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 59. Up to 2 conditions per place. [2020-11-09 15:38:45,742 INFO L116 LiptonReduction]: Number of co-enabled transitions 1348 [2020-11-09 15:38:48,881 WARN L194 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-11-09 15:38:49,195 WARN L194 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-11-09 15:38:49,316 INFO L131 LiptonReduction]: Checked pairs total: 2406 [2020-11-09 15:38:49,317 INFO L133 LiptonReduction]: Total number of compositions: 68 [2020-11-09 15:38:49,326 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-11-09 15:38:49,353 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 274 states. [2020-11-09 15:38:49,355 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states. [2020-11-09 15:38:49,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-09 15:38:49,362 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:38:49,363 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:38:49,363 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:38:49,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:38:49,369 INFO L82 PathProgramCache]: Analyzing trace with hash 1461766860, now seen corresponding path program 1 times [2020-11-09 15:38:49,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:38:49,389 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947121036] [2020-11-09 15:38:49,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:38:49,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:38:49,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:38:49,561 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947121036] [2020-11-09 15:38:49,562 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:38:49,562 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 15:38:49,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [194156926] [2020-11-09 15:38:49,564 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:38:49,566 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:38:49,579 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-11-09 15:38:49,579 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:38:49,584 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:38:49,584 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-09 15:38:49,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:38:49,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-09 15:38:49,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-09 15:38:49,601 INFO L87 Difference]: Start difference. First operand 274 states. Second operand 2 states. [2020-11-09 15:38:49,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:38:49,620 INFO L93 Difference]: Finished difference Result 274 states and 786 transitions. [2020-11-09 15:38:49,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-09 15:38:49,622 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-11-09 15:38:49,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:38:49,638 INFO L225 Difference]: With dead ends: 274 [2020-11-09 15:38:49,638 INFO L226 Difference]: Without dead ends: 226 [2020-11-09 15:38:49,640 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 [2020-11-09 15:38:49,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-11-09 15:38:49,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-11-09 15:38:49,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-11-09 15:38:49,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 634 transitions. [2020-11-09 15:38:49,740 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 634 transitions. Word has length 8 [2020-11-09 15:38:49,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:38:49,741 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 634 transitions. [2020-11-09 15:38:49,741 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-09 15:38:49,741 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 634 transitions. [2020-11-09 15:38:49,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-09 15:38:49,742 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:38:49,742 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:38:49,743 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 15:38:49,743 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:38:49,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:38:49,744 INFO L82 PathProgramCache]: Analyzing trace with hash -1929876305, now seen corresponding path program 1 times [2020-11-09 15:38:49,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:38:49,745 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253261035] [2020-11-09 15:38:49,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:38:49,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:38:49,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:38:49,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253261035] [2020-11-09 15:38:49,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:38:49,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 15:38:49,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1965440983] [2020-11-09 15:38:49,847 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:38:49,848 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:38:49,850 INFO L252 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-11-09 15:38:49,850 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:38:49,850 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:38:49,852 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 15:38:49,852 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:38:49,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 15:38:49,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 15:38:49,853 INFO L87 Difference]: Start difference. First operand 226 states and 634 transitions. Second operand 4 states. [2020-11-09 15:38:49,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:38:49,914 INFO L93 Difference]: Finished difference Result 250 states and 668 transitions. [2020-11-09 15:38:49,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 15:38:49,915 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-11-09 15:38:49,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:38:49,918 INFO L225 Difference]: With dead ends: 250 [2020-11-09 15:38:49,918 INFO L226 Difference]: Without dead ends: 202 [2020-11-09 15:38:49,919 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 [2020-11-09 15:38:49,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-11-09 15:38:49,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-11-09 15:38:49,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-11-09 15:38:49,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 552 transitions. [2020-11-09 15:38:49,935 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 552 transitions. Word has length 9 [2020-11-09 15:38:49,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:38:49,935 INFO L481 AbstractCegarLoop]: Abstraction has 202 states and 552 transitions. [2020-11-09 15:38:49,935 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 15:38:49,935 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 552 transitions. [2020-11-09 15:38:49,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-09 15:38:49,937 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:38:49,937 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:38:49,937 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 15:38:49,937 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:38:49,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:38:49,938 INFO L82 PathProgramCache]: Analyzing trace with hash 303350682, now seen corresponding path program 1 times [2020-11-09 15:38:49,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:38:49,940 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759823516] [2020-11-09 15:38:49,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:38:49,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:38:50,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:38:50,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759823516] [2020-11-09 15:38:50,042 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:38:50,043 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 15:38:50,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1690486088] [2020-11-09 15:38:50,043 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:38:50,048 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:38:50,050 INFO L252 McrAutomatonBuilder]: Finished intersection with 12 states and 12 transitions. [2020-11-09 15:38:50,050 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:38:50,069 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:38:50,069 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 15:38:50,069 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:38:50,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 15:38:50,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 15:38:50,070 INFO L87 Difference]: Start difference. First operand 202 states and 552 transitions. Second operand 4 states. [2020-11-09 15:38:50,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:38:50,111 INFO L93 Difference]: Finished difference Result 226 states and 589 transitions. [2020-11-09 15:38:50,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 15:38:50,112 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-11-09 15:38:50,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:38:50,114 INFO L225 Difference]: With dead ends: 226 [2020-11-09 15:38:50,114 INFO L226 Difference]: Without dead ends: 190 [2020-11-09 15:38:50,115 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 [2020-11-09 15:38:50,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2020-11-09 15:38:50,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2020-11-09 15:38:50,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2020-11-09 15:38:50,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 508 transitions. [2020-11-09 15:38:50,131 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 508 transitions. Word has length 10 [2020-11-09 15:38:50,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:38:50,131 INFO L481 AbstractCegarLoop]: Abstraction has 190 states and 508 transitions. [2020-11-09 15:38:50,131 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 15:38:50,132 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 508 transitions. [2020-11-09 15:38:50,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-09 15:38:50,133 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:38:50,133 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:38:50,134 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 15:38:50,134 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:38:50,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:38:50,135 INFO L82 PathProgramCache]: Analyzing trace with hash 813888440, now seen corresponding path program 1 times [2020-11-09 15:38:50,136 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:38:50,136 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963612562] [2020-11-09 15:38:50,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:38:50,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:38:50,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:38:50,200 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963612562] [2020-11-09 15:38:50,200 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:38:50,201 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 15:38:50,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2047644323] [2020-11-09 15:38:50,201 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:38:50,203 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:38:50,205 INFO L252 McrAutomatonBuilder]: Finished intersection with 14 states and 15 transitions. [2020-11-09 15:38:50,205 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:38:50,215 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:38:50,215 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 15:38:50,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:38:50,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 15:38:50,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 15:38:50,217 INFO L87 Difference]: Start difference. First operand 190 states and 508 transitions. Second operand 4 states. [2020-11-09 15:38:50,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:38:50,247 INFO L93 Difference]: Finished difference Result 210 states and 542 transitions. [2020-11-09 15:38:50,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 15:38:50,247 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-09 15:38:50,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:38:50,250 INFO L225 Difference]: With dead ends: 210 [2020-11-09 15:38:50,250 INFO L226 Difference]: Without dead ends: 186 [2020-11-09 15:38:50,251 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:38:50,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2020-11-09 15:38:50,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 186. [2020-11-09 15:38:50,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2020-11-09 15:38:50,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 494 transitions. [2020-11-09 15:38:50,266 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 494 transitions. Word has length 11 [2020-11-09 15:38:50,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:38:50,266 INFO L481 AbstractCegarLoop]: Abstraction has 186 states and 494 transitions. [2020-11-09 15:38:50,266 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 15:38:50,266 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 494 transitions. [2020-11-09 15:38:50,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-09 15:38:50,269 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:38:50,269 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:38:50,269 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 15:38:50,269 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:38:50,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:38:50,270 INFO L82 PathProgramCache]: Analyzing trace with hash 90593002, now seen corresponding path program 1 times [2020-11-09 15:38:50,272 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:38:50,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450026310] [2020-11-09 15:38:50,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:38:50,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:38:50,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:38:50,358 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450026310] [2020-11-09 15:38:50,358 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:38:50,359 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 15:38:50,359 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [682766418] [2020-11-09 15:38:50,359 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:38:50,361 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:38:50,368 INFO L252 McrAutomatonBuilder]: Finished intersection with 24 states and 34 transitions. [2020-11-09 15:38:50,368 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:38:50,388 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:38:50,388 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 15:38:50,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:38:50,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 15:38:50,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:38:50,389 INFO L87 Difference]: Start difference. First operand 186 states and 494 transitions. Second operand 5 states. [2020-11-09 15:38:50,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:38:50,475 INFO L93 Difference]: Finished difference Result 358 states and 886 transitions. [2020-11-09 15:38:50,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-09 15:38:50,476 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-11-09 15:38:50,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:38:50,479 INFO L225 Difference]: With dead ends: 358 [2020-11-09 15:38:50,479 INFO L226 Difference]: Without dead ends: 198 [2020-11-09 15:38:50,480 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-09 15:38:50,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-11-09 15:38:50,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 174. [2020-11-09 15:38:50,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-11-09 15:38:50,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 432 transitions. [2020-11-09 15:38:50,503 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 432 transitions. Word has length 12 [2020-11-09 15:38:50,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:38:50,504 INFO L481 AbstractCegarLoop]: Abstraction has 174 states and 432 transitions. [2020-11-09 15:38:50,504 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 15:38:50,511 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 432 transitions. [2020-11-09 15:38:50,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-09 15:38:50,512 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:38:50,512 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:38:50,513 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 15:38:50,513 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:38:50,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:38:50,513 INFO L82 PathProgramCache]: Analyzing trace with hash -89644004, now seen corresponding path program 1 times [2020-11-09 15:38:50,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:38:50,518 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875825395] [2020-11-09 15:38:50,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:38:50,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:38:50,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:38:50,604 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875825395] [2020-11-09 15:38:50,604 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:38:50,604 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 15:38:50,605 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [460254814] [2020-11-09 15:38:50,605 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:38:50,606 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:38:50,609 INFO L252 McrAutomatonBuilder]: Finished intersection with 24 states and 36 transitions. [2020-11-09 15:38:50,610 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:38:50,706 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:38:50,707 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 15:38:50,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:38:50,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 15:38:50,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:38:50,708 INFO L87 Difference]: Start difference. First operand 174 states and 432 transitions. Second operand 5 states. [2020-11-09 15:38:50,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:38:50,742 INFO L93 Difference]: Finished difference Result 244 states and 599 transitions. [2020-11-09 15:38:50,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 15:38:50,742 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-11-09 15:38:50,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:38:50,744 INFO L225 Difference]: With dead ends: 244 [2020-11-09 15:38:50,744 INFO L226 Difference]: Without dead ends: 150 [2020-11-09 15:38:50,744 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-09 15:38:50,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2020-11-09 15:38:50,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2020-11-09 15:38:50,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-11-09 15:38:50,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 358 transitions. [2020-11-09 15:38:50,751 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 358 transitions. Word has length 12 [2020-11-09 15:38:50,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:38:50,751 INFO L481 AbstractCegarLoop]: Abstraction has 150 states and 358 transitions. [2020-11-09 15:38:50,751 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 15:38:50,752 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 358 transitions. [2020-11-09 15:38:50,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-09 15:38:50,752 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:38:50,753 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:38:50,753 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 15:38:50,753 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:38:50,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:38:50,753 INFO L82 PathProgramCache]: Analyzing trace with hash -90307094, now seen corresponding path program 2 times [2020-11-09 15:38:50,755 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:38:50,755 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779529139] [2020-11-09 15:38:50,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:38:50,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:38:50,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:38:50,823 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779529139] [2020-11-09 15:38:50,824 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:38:50,824 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 15:38:50,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1136745360] [2020-11-09 15:38:50,824 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:38:50,826 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:38:50,829 INFO L252 McrAutomatonBuilder]: Finished intersection with 28 states and 46 transitions. [2020-11-09 15:38:50,829 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:38:50,853 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:38:50,888 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:38:50,918 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:38:50,933 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:38:50,955 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:38:51,012 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [4499#(not (= 3 ~__unbuffered_cnt~0))] [2020-11-09 15:38:51,013 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 15:38:51,013 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:38:51,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 15:38:51,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:38:51,014 INFO L87 Difference]: Start difference. First operand 150 states and 358 transitions. Second operand 5 states. [2020-11-09 15:38:51,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:38:51,071 INFO L93 Difference]: Finished difference Result 128 states and 264 transitions. [2020-11-09 15:38:51,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 15:38:51,072 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-11-09 15:38:51,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:38:51,073 INFO L225 Difference]: With dead ends: 128 [2020-11-09 15:38:51,073 INFO L226 Difference]: Without dead ends: 92 [2020-11-09 15:38:51,074 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 3 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-09 15:38:51,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-11-09 15:38:51,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2020-11-09 15:38:51,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-11-09 15:38:51,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 173 transitions. [2020-11-09 15:38:51,078 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 173 transitions. Word has length 12 [2020-11-09 15:38:51,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:38:51,078 INFO L481 AbstractCegarLoop]: Abstraction has 92 states and 173 transitions. [2020-11-09 15:38:51,078 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 15:38:51,078 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 173 transitions. [2020-11-09 15:38:51,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-09 15:38:51,079 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:38:51,079 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:38:51,079 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-09 15:38:51,079 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:38:51,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:38:51,080 INFO L82 PathProgramCache]: Analyzing trace with hash 1274722541, now seen corresponding path program 1 times [2020-11-09 15:38:51,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:38:51,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673400598] [2020-11-09 15:38:51,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:38:51,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:38:51,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:38:51,122 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673400598] [2020-11-09 15:38:51,123 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:38:51,123 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 15:38:51,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [499706493] [2020-11-09 15:38:51,123 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:38:51,125 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:38:51,127 INFO L252 McrAutomatonBuilder]: Finished intersection with 21 states and 26 transitions. [2020-11-09 15:38:51,128 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:38:51,131 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:38:51,132 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 15:38:51,132 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:38:51,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 15:38:51,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 15:38:51,133 INFO L87 Difference]: Start difference. First operand 92 states and 173 transitions. Second operand 4 states. [2020-11-09 15:38:51,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:38:51,156 INFO L93 Difference]: Finished difference Result 104 states and 181 transitions. [2020-11-09 15:38:51,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 15:38:51,156 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-11-09 15:38:51,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:38:51,157 INFO L225 Difference]: With dead ends: 104 [2020-11-09 15:38:51,157 INFO L226 Difference]: Without dead ends: 70 [2020-11-09 15:38:51,158 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:38:51,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-11-09 15:38:51,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 68. [2020-11-09 15:38:51,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-11-09 15:38:51,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 115 transitions. [2020-11-09 15:38:51,161 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 115 transitions. Word has length 14 [2020-11-09 15:38:51,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:38:51,161 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 115 transitions. [2020-11-09 15:38:51,161 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 15:38:51,161 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 115 transitions. [2020-11-09 15:38:51,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-09 15:38:51,162 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:38:51,162 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:38:51,162 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-09 15:38:51,163 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:38:51,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:38:51,163 INFO L82 PathProgramCache]: Analyzing trace with hash -1788026541, now seen corresponding path program 1 times [2020-11-09 15:38:51,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:38:51,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953799938] [2020-11-09 15:38:51,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:38:51,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:38:51,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:38:51,264 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953799938] [2020-11-09 15:38:51,264 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:38:51,265 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-09 15:38:51,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [111773303] [2020-11-09 15:38:51,265 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:38:51,267 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:38:51,274 INFO L252 McrAutomatonBuilder]: Finished intersection with 46 states and 77 transitions. [2020-11-09 15:38:51,274 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:38:51,284 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:38:51,445 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:38:51,446 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-09 15:38:51,446 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:38:51,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-09 15:38:51,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-09 15:38:51,447 INFO L87 Difference]: Start difference. First operand 68 states and 115 transitions. Second operand 6 states. [2020-11-09 15:38:51,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:38:51,480 INFO L93 Difference]: Finished difference Result 58 states and 100 transitions. [2020-11-09 15:38:51,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 15:38:51,480 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-11-09 15:38:51,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:38:51,480 INFO L225 Difference]: With dead ends: 58 [2020-11-09 15:38:51,480 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 15:38:51,481 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-09 15:38:51,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 15:38:51,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 15:38:51,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 15:38:51,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 15:38:51,483 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-11-09 15:38:51,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:38:51,483 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 15:38:51,483 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-09 15:38:51,483 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 15:38:51,483 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 15:38:51,483 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-09 15:38:51,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 03:38:51 BasicIcfg [2020-11-09 15:38:51,487 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 15:38:51,489 INFO L168 Benchmark]: Toolchain (without parser) took 7322.12 ms. Allocated memory was 151.0 MB in the beginning and 223.3 MB in the end (delta: 72.4 MB). Free memory was 125.0 MB in the beginning and 174.5 MB in the end (delta: -49.5 MB). Peak memory consumption was 24.0 MB. Max. memory is 8.0 GB. [2020-11-09 15:38:51,490 INFO L168 Benchmark]: CDTParser took 0.65 ms. Allocated memory is still 151.0 MB. Free memory is still 122.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 15:38:51,491 INFO L168 Benchmark]: CACSL2BoogieTranslator took 629.88 ms. Allocated memory is still 151.0 MB. Free memory was 124.3 MB in the beginning and 129.1 MB in the end (delta: -4.7 MB). Peak memory consumption was 30.1 MB. Max. memory is 8.0 GB. [2020-11-09 15:38:51,492 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.55 ms. Allocated memory is still 151.0 MB. Free memory was 129.1 MB in the beginning and 127.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 15:38:51,493 INFO L168 Benchmark]: Boogie Preprocessor took 50.23 ms. Allocated memory is still 151.0 MB. Free memory was 127.0 MB in the beginning and 125.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 15:38:51,499 INFO L168 Benchmark]: RCFGBuilder took 603.93 ms. Allocated memory is still 151.0 MB. Free memory was 125.4 MB in the beginning and 103.9 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-11-09 15:38:51,500 INFO L168 Benchmark]: TraceAbstraction took 5958.02 ms. Allocated memory was 151.0 MB in the beginning and 223.3 MB in the end (delta: 72.4 MB). Free memory was 103.4 MB in the beginning and 174.5 MB in the end (delta: -71.1 MB). Peak memory consumption was 1.2 MB. Max. memory is 8.0 GB. [2020-11-09 15:38:51,509 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.65 ms. Allocated memory is still 151.0 MB. Free memory is still 122.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 629.88 ms. Allocated memory is still 151.0 MB. Free memory was 124.3 MB in the beginning and 129.1 MB in the end (delta: -4.7 MB). Peak memory consumption was 30.1 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 57.55 ms. Allocated memory is still 151.0 MB. Free memory was 129.1 MB in the beginning and 127.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 50.23 ms. Allocated memory is still 151.0 MB. Free memory was 127.0 MB in the beginning and 125.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 603.93 ms. Allocated memory is still 151.0 MB. Free memory was 125.4 MB in the beginning and 103.9 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5958.02 ms. Allocated memory was 151.0 MB in the beginning and 223.3 MB in the end (delta: 72.4 MB). Free memory was 103.4 MB in the beginning and 174.5 MB in the end (delta: -71.1 MB). Peak memory consumption was 1.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 715 VarBasedMoverChecksPositive, 23 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 34 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.6s, 83 PlacesBefore, 31 PlacesAfterwards, 76 TransitionsBefore, 22 TransitionsAfterwards, 1348 CoEnabledTransitionPairs, 5 FixpointIterations, 16 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 2 ChoiceCompositions, 68 TotalNumberOfCompositions, 2406 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.8s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.6s, HoareTripleCheckerStatistics: 202 SDtfs, 154 SDslu, 309 SDs, 0 SdLazy, 104 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 109 GetRequests, 71 SyntacticMatches, 4 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=274occurred 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, 9 MinimizatonAttempts, 26 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 103 NumberOfCodeBlocks, 103 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 94 ConstructedInterpolants, 0 QuantifiedInterpolants, 2868 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...