/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-SP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe037_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 17:14:54,477 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 17:14:54,482 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 17:14:54,537 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 17:14:54,538 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 17:14:54,542 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 17:14:54,545 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 17:14:54,551 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 17:14:54,563 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 17:14:54,570 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 17:14:54,571 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 17:14:54,573 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 17:14:54,574 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 17:14:54,577 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 17:14:54,579 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 17:14:54,581 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 17:14:54,582 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 17:14:54,585 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 17:14:54,593 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 17:14:54,597 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 17:14:54,599 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 17:14:54,600 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 17:14:54,602 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 17:14:54,604 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 17:14:54,614 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-09 17:14:54,620 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 17:14:54,620 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 17:14:54,622 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 17:14:54,623 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 17:14:54,624 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 17:14:54,624 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 17:14:54,625 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 17:14:54,625 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 17:14:54,625 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 17:14:54,626 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 17:14:54,627 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 17:14:54,628 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-SP.epf [2020-11-09 17:14:54,678 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 17:14:54,678 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 17:14:54,685 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 17:14:54,685 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 17:14:54,685 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 17:14:54,685 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 17:14:54,685 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 17:14:54,686 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 17:14:54,686 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 17:14:54,686 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 17:14:54,686 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 17:14:54,687 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 17:14:54,687 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 17:14:54,687 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 17:14:54,687 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 17:14:54,687 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 17:14:54,687 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 17:14:54,688 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 17:14:54,688 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 17:14:54,688 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 17:14:54,688 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 17:14:54,688 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 17:14:54,689 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 17:14:54,689 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-11-09 17:14:54,689 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 17:14:54,689 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 17:14:54,689 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 17:14:54,690 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-11-09 17:14:54,690 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-11-09 17:14:54,690 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 17:14:54,690 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 17:14:55,040 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 17:14:55,068 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 17:14:55,073 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 17:14:55,075 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 17:14:55,076 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 17:14:55,077 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe037_tso.opt.i [2020-11-09 17:14:55,170 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db8a5e16c/6005f2ebd6c64f89b338817763923fbd/FLAGe45c2b44e [2020-11-09 17:14:55,790 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 17:14:55,790 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe037_tso.opt.i [2020-11-09 17:14:55,813 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db8a5e16c/6005f2ebd6c64f89b338817763923fbd/FLAGe45c2b44e [2020-11-09 17:14:56,065 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db8a5e16c/6005f2ebd6c64f89b338817763923fbd [2020-11-09 17:14:56,068 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 17:14:56,075 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 17:14:56,078 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 17:14:56,078 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 17:14:56,083 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 17:14:56,084 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:14:56" (1/1) ... [2020-11-09 17:14:56,092 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32919b08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:56, skipping insertion in model container [2020-11-09 17:14:56,093 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:14:56" (1/1) ... [2020-11-09 17:14:56,102 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 17:14:56,176 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 17:14:56,508 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 17:14:56,518 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 17:14:56,567 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 17:14:56,678 INFO L208 MainTranslator]: Completed translation [2020-11-09 17:14:56,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:56 WrapperNode [2020-11-09 17:14:56,678 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 17:14:56,680 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 17:14:56,680 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 17:14:56,680 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 17:14:56,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:56" (1/1) ... [2020-11-09 17:14:56,706 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:56" (1/1) ... [2020-11-09 17:14:56,729 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 17:14:56,730 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 17:14:56,731 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 17:14:56,731 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 17:14:56,740 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:56" (1/1) ... [2020-11-09 17:14:56,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:56" (1/1) ... [2020-11-09 17:14:56,743 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:56" (1/1) ... [2020-11-09 17:14:56,744 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:56" (1/1) ... [2020-11-09 17:14:56,750 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:56" (1/1) ... [2020-11-09 17:14:56,752 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:56" (1/1) ... [2020-11-09 17:14:56,754 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:56" (1/1) ... [2020-11-09 17:14:56,758 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 17:14:56,759 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 17:14:56,759 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 17:14:56,759 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 17:14:56,760 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:56" (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 17:14:56,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 17:14:56,847 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 17:14:56,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 17:14:56,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 17:14:56,847 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 17:14:56,847 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 17:14:56,848 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 17:14:56,848 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 17:14:56,848 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-09 17:14:56,848 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-09 17:14:56,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 17:14:56,849 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 17:14:56,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 17:14:56,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 17:14:56,851 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 17:14:57,266 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 17:14:57,267 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 17:14:57,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:14:57 BoogieIcfgContainer [2020-11-09 17:14:57,269 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 17:14:57,271 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 17:14:57,271 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 17:14:57,275 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 17:14:57,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:14:56" (1/3) ... [2020-11-09 17:14:57,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b110edb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:14:57, skipping insertion in model container [2020-11-09 17:14:57,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:56" (2/3) ... [2020-11-09 17:14:57,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b110edb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:14:57, skipping insertion in model container [2020-11-09 17:14:57,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:14:57" (3/3) ... [2020-11-09 17:14:57,278 INFO L111 eAbstractionObserver]: Analyzing ICFG safe037_tso.opt.i [2020-11-09 17:14:57,293 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 17:14:57,294 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-09 17:14:57,297 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 17:14:57,298 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 17:14:57,337 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:57,337 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:57,337 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:57,337 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:57,338 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:57,338 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:57,338 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:57,338 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:57,339 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:57,339 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:57,339 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:57,339 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:57,340 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:57,340 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:57,340 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:57,340 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:57,340 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:57,340 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:57,341 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:57,341 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:57,341 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:57,341 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:57,342 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:57,342 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:57,342 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:57,342 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:57,342 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:57,343 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:57,343 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:57,343 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:57,343 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:57,343 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:57,344 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:57,344 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:57,344 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:57,344 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:57,347 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:57,347 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:57,347 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:57,347 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:57,354 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:57,354 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:57,354 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:57,355 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:57,358 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:57,358 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:57,358 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:57,358 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:57,361 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 17:14:57,373 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-09 17:14:57,395 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 17:14:57,396 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 17:14:57,396 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 17:14:57,396 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 17:14:57,396 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 17:14:57,396 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 17:14:57,397 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 17:14:57,397 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 17:14:57,409 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 17:14:57,410 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 80 transitions, 175 flow [2020-11-09 17:14:57,413 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 80 transitions, 175 flow [2020-11-09 17:14:57,415 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 87 places, 80 transitions, 175 flow [2020-11-09 17:14:57,460 INFO L129 PetriNetUnfolder]: 3/77 cut-off events. [2020-11-09 17:14:57,460 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 17:14:57,465 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 77 events. 3/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-11-09 17:14:57,468 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-11-09 17:15:00,359 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2020-11-09 17:15:01,446 WARN L194 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-11-09 17:15:01,576 WARN L194 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-11-09 17:15:01,807 WARN L194 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-11-09 17:15:01,919 WARN L194 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-11-09 17:15:02,189 WARN L194 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-11-09 17:15:02,246 INFO L131 LiptonReduction]: Checked pairs total: 2901 [2020-11-09 17:15:02,246 INFO L133 LiptonReduction]: Total number of compositions: 75 [2020-11-09 17:15:02,253 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2020-11-09 17:15:02,281 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-11-09 17:15:02,284 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-11-09 17:15:02,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-09 17:15:02,291 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:15:02,292 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:15:02,292 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:15:02,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:15:02,298 INFO L82 PathProgramCache]: Analyzing trace with hash -1054042143, now seen corresponding path program 1 times [2020-11-09 17:15:02,320 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:15:02,321 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421921487] [2020-11-09 17:15:02,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:15:02,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:15:02,597 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 17:15:02,598 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421921487] [2020-11-09 17:15:02,599 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:15:02,599 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:15:02,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1476464275] [2020-11-09 17:15:02,601 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:15:02,604 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:15:02,618 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-11-09 17:15:02,618 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:15:02,623 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:15:02,624 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:15:02,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:15:02,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:15:02,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:15:02,642 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 4 states. [2020-11-09 17:15:02,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:15:02,723 INFO L93 Difference]: Finished difference Result 281 states and 711 transitions. [2020-11-09 17:15:02,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 17:15:02,725 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-11-09 17:15:02,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:15:02,739 INFO L225 Difference]: With dead ends: 281 [2020-11-09 17:15:02,739 INFO L226 Difference]: Without dead ends: 180 [2020-11-09 17:15:02,741 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 17:15:02,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-11-09 17:15:02,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2020-11-09 17:15:02,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2020-11-09 17:15:02,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 440 transitions. [2020-11-09 17:15:02,803 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 440 transitions. Word has length 8 [2020-11-09 17:15:02,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:15:02,804 INFO L481 AbstractCegarLoop]: Abstraction has 180 states and 440 transitions. [2020-11-09 17:15:02,804 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:15:02,804 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 440 transitions. [2020-11-09 17:15:02,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-09 17:15:02,806 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:15:02,806 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:15:02,806 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 17:15:02,807 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:15:02,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:15:02,808 INFO L82 PathProgramCache]: Analyzing trace with hash 1550829140, now seen corresponding path program 1 times [2020-11-09 17:15:02,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:15:02,816 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791824796] [2020-11-09 17:15:02,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:15:02,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:15:02,972 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 17:15:02,972 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791824796] [2020-11-09 17:15:02,973 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:15:02,973 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:15:02,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [286977201] [2020-11-09 17:15:02,974 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:15:02,975 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:15:02,982 INFO L252 McrAutomatonBuilder]: Finished intersection with 24 states and 35 transitions. [2020-11-09 17:15:02,983 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:15:03,170 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [1338#(<= ~__unbuffered_cnt~0 0)] [2020-11-09 17:15:03,174 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-09 17:15:03,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:15:03,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-09 17:15:03,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-09 17:15:03,176 INFO L87 Difference]: Start difference. First operand 180 states and 440 transitions. Second operand 6 states. [2020-11-09 17:15:03,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:15:03,225 INFO L93 Difference]: Finished difference Result 163 states and 368 transitions. [2020-11-09 17:15:03,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 17:15:03,225 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-11-09 17:15:03,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:15:03,228 INFO L225 Difference]: With dead ends: 163 [2020-11-09 17:15:03,228 INFO L226 Difference]: Without dead ends: 126 [2020-11-09 17:15:03,229 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-11-09 17:15:03,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-11-09 17:15:03,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2020-11-09 17:15:03,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-11-09 17:15:03,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 278 transitions. [2020-11-09 17:15:03,243 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 278 transitions. Word has length 11 [2020-11-09 17:15:03,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:15:03,243 INFO L481 AbstractCegarLoop]: Abstraction has 126 states and 278 transitions. [2020-11-09 17:15:03,243 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-09 17:15:03,243 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 278 transitions. [2020-11-09 17:15:03,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-09 17:15:03,245 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:15:03,245 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:15:03,245 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 17:15:03,246 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:15:03,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:15:03,246 INFO L82 PathProgramCache]: Analyzing trace with hash -1926964344, now seen corresponding path program 1 times [2020-11-09 17:15:03,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:15:03,248 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795178943] [2020-11-09 17:15:03,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:15:03,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:15:03,374 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 17:15:03,374 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795178943] [2020-11-09 17:15:03,375 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:15:03,375 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 17:15:03,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1544415313] [2020-11-09 17:15:03,375 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:15:03,379 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:15:03,385 INFO L252 McrAutomatonBuilder]: Finished intersection with 39 states and 66 transitions. [2020-11-09 17:15:03,386 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:15:03,538 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [1764#(<= ~__unbuffered_cnt~0 0)] [2020-11-09 17:15:03,538 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-09 17:15:03,538 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:15:03,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-09 17:15:03,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-09 17:15:03,539 INFO L87 Difference]: Start difference. First operand 126 states and 278 transitions. Second operand 7 states. [2020-11-09 17:15:03,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:15:03,599 INFO L93 Difference]: Finished difference Result 118 states and 260 transitions. [2020-11-09 17:15:03,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 17:15:03,599 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-11-09 17:15:03,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:15:03,601 INFO L225 Difference]: With dead ends: 118 [2020-11-09 17:15:03,601 INFO L226 Difference]: Without dead ends: 108 [2020-11-09 17:15:03,601 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-11-09 17:15:03,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-11-09 17:15:03,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2020-11-09 17:15:03,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-11-09 17:15:03,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 242 transitions. [2020-11-09 17:15:03,609 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 242 transitions. Word has length 14 [2020-11-09 17:15:03,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:15:03,610 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 242 transitions. [2020-11-09 17:15:03,610 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-09 17:15:03,610 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 242 transitions. [2020-11-09 17:15:03,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-09 17:15:03,612 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:15:03,612 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:15:03,612 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 17:15:03,613 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:15:03,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:15:03,613 INFO L82 PathProgramCache]: Analyzing trace with hash 337836795, now seen corresponding path program 1 times [2020-11-09 17:15:03,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:15:03,615 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623047674] [2020-11-09 17:15:03,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:15:03,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:15:03,689 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 17:15:03,689 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623047674] [2020-11-09 17:15:03,690 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:15:03,690 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:15:03,690 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [304649520] [2020-11-09 17:15:03,690 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:15:03,696 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:15:03,703 INFO L252 McrAutomatonBuilder]: Finished intersection with 46 states and 77 transitions. [2020-11-09 17:15:03,703 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:15:03,906 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:15:03,907 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:15:03,907 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:15:03,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:15:03,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:15:03,910 INFO L87 Difference]: Start difference. First operand 108 states and 242 transitions. Second operand 4 states. [2020-11-09 17:15:03,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:15:03,932 INFO L93 Difference]: Finished difference Result 133 states and 289 transitions. [2020-11-09 17:15:03,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 17:15:03,937 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-09 17:15:03,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:15:03,938 INFO L225 Difference]: With dead ends: 133 [2020-11-09 17:15:03,938 INFO L226 Difference]: Without dead ends: 54 [2020-11-09 17:15:03,939 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 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 17:15:03,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-11-09 17:15:03,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-11-09 17:15:03,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-11-09 17:15:03,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 98 transitions. [2020-11-09 17:15:03,945 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 98 transitions. Word has length 17 [2020-11-09 17:15:03,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:15:03,945 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 98 transitions. [2020-11-09 17:15:03,945 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:15:03,946 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 98 transitions. [2020-11-09 17:15:03,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-09 17:15:03,946 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:15:03,947 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:15:03,947 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 17:15:03,949 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:15:03,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:15:03,950 INFO L82 PathProgramCache]: Analyzing trace with hash 64468355, now seen corresponding path program 2 times [2020-11-09 17:15:03,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:15:03,956 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763594383] [2020-11-09 17:15:03,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:15:03,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:15:04,044 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 17:15:04,045 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763594383] [2020-11-09 17:15:04,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:15:04,045 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:15:04,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1473332437] [2020-11-09 17:15:04,046 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:15:04,048 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:15:04,053 INFO L252 McrAutomatonBuilder]: Finished intersection with 30 states and 41 transitions. [2020-11-09 17:15:04,054 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:15:04,077 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:15:04,077 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:15:04,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:15:04,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:15:04,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:15:04,078 INFO L87 Difference]: Start difference. First operand 54 states and 98 transitions. Second operand 4 states. [2020-11-09 17:15:04,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:15:04,093 INFO L93 Difference]: Finished difference Result 67 states and 119 transitions. [2020-11-09 17:15:04,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 17:15:04,094 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-09 17:15:04,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:15:04,095 INFO L225 Difference]: With dead ends: 67 [2020-11-09 17:15:04,095 INFO L226 Difference]: Without dead ends: 30 [2020-11-09 17:15:04,095 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 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 17:15:04,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-11-09 17:15:04,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-11-09 17:15:04,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-11-09 17:15:04,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2020-11-09 17:15:04,098 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 17 [2020-11-09 17:15:04,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:15:04,098 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2020-11-09 17:15:04,098 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:15:04,099 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2020-11-09 17:15:04,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-09 17:15:04,099 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:15:04,099 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:15:04,100 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 17:15:04,100 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:15:04,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:15:04,100 INFO L82 PathProgramCache]: Analyzing trace with hash -339277395, now seen corresponding path program 3 times [2020-11-09 17:15:04,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:15:04,102 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111950036] [2020-11-09 17:15:04,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:15:04,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:15:04,142 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 17:15:04,143 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111950036] [2020-11-09 17:15:04,143 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:15:04,143 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:15:04,144 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1891546739] [2020-11-09 17:15:04,144 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:15:04,146 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:15:04,150 INFO L252 McrAutomatonBuilder]: Finished intersection with 24 states and 29 transitions. [2020-11-09 17:15:04,150 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:15:04,163 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:15:04,164 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:15:04,164 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:15:04,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:15:04,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:15:04,165 INFO L87 Difference]: Start difference. First operand 30 states and 44 transitions. Second operand 4 states. [2020-11-09 17:15:04,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:15:04,177 INFO L93 Difference]: Finished difference Result 29 states and 43 transitions. [2020-11-09 17:15:04,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 17:15:04,177 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-09 17:15:04,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:15:04,177 INFO L225 Difference]: With dead ends: 29 [2020-11-09 17:15:04,177 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 17:15:04,178 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 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 17:15:04,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 17:15:04,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 17:15:04,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 17:15:04,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 17:15:04,179 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-11-09 17:15:04,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:15:04,179 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 17:15:04,179 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:15:04,179 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 17:15:04,180 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 17:15:04,180 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 17:15:04,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:15:04 BasicIcfg [2020-11-09 17:15:04,184 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 17:15:04,186 INFO L168 Benchmark]: Toolchain (without parser) took 8115.60 ms. Allocated memory was 158.3 MB in the beginning and 235.9 MB in the end (delta: 77.6 MB). Free memory was 132.0 MB in the beginning and 174.3 MB in the end (delta: -42.4 MB). Peak memory consumption was 36.8 MB. Max. memory is 8.0 GB. [2020-11-09 17:15:04,186 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 158.3 MB. Free memory is still 129.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 17:15:04,187 INFO L168 Benchmark]: CACSL2BoogieTranslator took 601.16 ms. Allocated memory is still 158.3 MB. Free memory was 131.3 MB in the beginning and 135.0 MB in the end (delta: -3.7 MB). Peak memory consumption was 30.0 MB. Max. memory is 8.0 GB. [2020-11-09 17:15:04,188 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.98 ms. Allocated memory is still 158.3 MB. Free memory was 135.0 MB in the beginning and 132.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 17:15:04,189 INFO L168 Benchmark]: Boogie Preprocessor took 27.73 ms. Allocated memory is still 158.3 MB. Free memory was 132.9 MB in the beginning and 131.9 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 17:15:04,189 INFO L168 Benchmark]: RCFGBuilder took 510.55 ms. Allocated memory is still 158.3 MB. Free memory was 131.9 MB in the beginning and 109.3 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-11-09 17:15:04,190 INFO L168 Benchmark]: TraceAbstraction took 6912.65 ms. Allocated memory was 158.3 MB in the beginning and 235.9 MB in the end (delta: 77.6 MB). Free memory was 109.3 MB in the beginning and 174.3 MB in the end (delta: -65.0 MB). Peak memory consumption was 13.1 MB. Max. memory is 8.0 GB. [2020-11-09 17:15:04,194 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 158.3 MB. Free memory is still 129.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 601.16 ms. Allocated memory is still 158.3 MB. Free memory was 131.3 MB in the beginning and 135.0 MB in the end (delta: -3.7 MB). Peak memory consumption was 30.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 49.98 ms. Allocated memory is still 158.3 MB. Free memory was 135.0 MB in the beginning and 132.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 27.73 ms. Allocated memory is still 158.3 MB. Free memory was 132.9 MB in the beginning and 131.9 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 510.55 ms. Allocated memory is still 158.3 MB. Free memory was 131.9 MB in the beginning and 109.3 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6912.65 ms. Allocated memory was 158.3 MB in the beginning and 235.9 MB in the end (delta: 77.6 MB). Free memory was 109.3 MB in the beginning and 174.3 MB in the end (delta: -65.0 MB). Peak memory consumption was 13.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 792 VarBasedMoverChecksPositive, 22 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 49 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.8s, 87 PlacesBefore, 31 PlacesAfterwards, 80 TransitionsBefore, 21 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 3 ChoiceCompositions, 75 TotalNumberOfCompositions, 2901 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, 78 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.7s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.8s, HoareTripleCheckerStatistics: 115 SDtfs, 155 SDslu, 172 SDs, 0 SdLazy, 65 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 109 GetRequests, 79 SyntacticMatches, 4 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 78 ConstructedInterpolants, 0 QuantifiedInterpolants, 2874 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...