/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe017_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-09 12:57:38,361 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-09 12:57:38,364 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-09 12:57:38,402 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-09 12:57:38,403 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-09 12:57:38,410 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-09 12:57:38,413 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-09 12:57:38,417 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-09 12:57:38,419 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-09 12:57:38,422 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-09 12:57:38,423 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-09 12:57:38,424 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-09 12:57:38,424 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-09 12:57:38,427 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-09 12:57:38,429 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-09 12:57:38,431 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-09 12:57:38,432 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-09 12:57:38,433 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-09 12:57:38,434 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-09 12:57:38,443 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-09 12:57:38,445 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-09 12:57:38,446 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-09 12:57:38,447 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-09 12:57:38,448 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-09 12:57:38,460 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-09 12:57:38,460 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-09 12:57:38,465 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-09 12:57:38,466 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-09 12:57:38,467 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-09 12:57:38,471 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-09 12:57:38,471 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-09 12:57:38,472 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-09 12:57:38,472 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-09 12:57:38,475 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-09 12:57:38,476 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-09 12:57:38,477 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-09 12:57:38,477 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-09 12:57:38,477 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-09 12:57:38,478 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-09 12:57:38,479 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-09 12:57:38,479 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-09 12:57:38,481 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-09 12:57:38,522 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-09 12:57:38,523 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-09 12:57:38,526 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-09 12:57:38,527 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-09 12:57:38,527 INFO L138 SettingsManager]: * Use SBE=true [2020-10-09 12:57:38,527 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-09 12:57:38,527 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-09 12:57:38,527 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-09 12:57:38,528 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-09 12:57:38,528 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-09 12:57:38,529 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-09 12:57:38,529 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-09 12:57:38,529 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-09 12:57:38,530 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-09 12:57:38,530 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-09 12:57:38,530 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-09 12:57:38,530 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-09 12:57:38,531 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-09 12:57:38,531 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-09 12:57:38,531 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-09 12:57:38,531 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-09 12:57:38,531 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-09 12:57:38,532 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-09 12:57:38,532 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-09 12:57:38,532 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-09 12:57:38,532 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-09 12:57:38,533 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-09 12:57:38,533 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-09 12:57:38,533 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-09 12:57:38,533 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-09 12:57:38,862 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-09 12:57:38,873 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-09 12:57:38,877 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-09 12:57:38,878 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-09 12:57:38,879 INFO L275 PluginConnector]: CDTParser initialized [2020-10-09 12:57:38,879 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe017_tso.opt.i [2020-10-09 12:57:38,943 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50e78d86e/1a20c41f331442b18127439df893e19d/FLAGe7eefeebd [2020-10-09 12:57:39,432 INFO L306 CDTParser]: Found 1 translation units. [2020-10-09 12:57:39,433 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe017_tso.opt.i [2020-10-09 12:57:39,448 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50e78d86e/1a20c41f331442b18127439df893e19d/FLAGe7eefeebd [2020-10-09 12:57:39,725 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50e78d86e/1a20c41f331442b18127439df893e19d [2020-10-09 12:57:39,734 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-09 12:57:39,736 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-09 12:57:39,737 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-09 12:57:39,737 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-09 12:57:39,741 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-09 12:57:39,742 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.10 12:57:39" (1/1) ... [2020-10-09 12:57:39,745 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4204e8dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:57:39, skipping insertion in model container [2020-10-09 12:57:39,745 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.10 12:57:39" (1/1) ... [2020-10-09 12:57:39,753 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-09 12:57:39,792 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-09 12:57:40,246 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-09 12:57:40,258 INFO L203 MainTranslator]: Completed pre-run [2020-10-09 12:57:40,333 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-09 12:57:40,429 INFO L208 MainTranslator]: Completed translation [2020-10-09 12:57:40,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:57:40 WrapperNode [2020-10-09 12:57:40,431 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-09 12:57:40,433 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-09 12:57:40,433 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-09 12:57:40,433 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-09 12:57:40,442 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:57:40" (1/1) ... [2020-10-09 12:57:40,460 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:57:40" (1/1) ... [2020-10-09 12:57:40,480 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-09 12:57:40,480 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-09 12:57:40,481 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-09 12:57:40,481 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-09 12:57:40,490 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:57:40" (1/1) ... [2020-10-09 12:57:40,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:57:40" (1/1) ... [2020-10-09 12:57:40,493 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:57:40" (1/1) ... [2020-10-09 12:57:40,494 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:57:40" (1/1) ... [2020-10-09 12:57:40,500 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:57:40" (1/1) ... [2020-10-09 12:57:40,502 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:57:40" (1/1) ... [2020-10-09 12:57:40,505 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:57:40" (1/1) ... [2020-10-09 12:57:40,508 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-09 12:57:40,508 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-09 12:57:40,508 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-09 12:57:40,509 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-09 12:57:40,509 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:57:40" (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 [2020-10-09 12:57:40,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-09 12:57:40,593 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-09 12:57:40,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-09 12:57:40,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-09 12:57:40,595 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-09 12:57:40,596 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-09 12:57:40,596 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-09 12:57:40,597 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-09 12:57:40,597 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-09 12:57:40,598 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-09 12:57:40,598 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-09 12:57:40,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-09 12:57:40,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-09 12:57:40,600 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-09 12:57:40,942 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-09 12:57:40,942 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-09 12:57:40,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.10 12:57:40 BoogieIcfgContainer [2020-10-09 12:57:40,945 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-09 12:57:40,946 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-09 12:57:40,946 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-09 12:57:40,949 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-09 12:57:40,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.10 12:57:39" (1/3) ... [2020-10-09 12:57:40,951 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@788486a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.10 12:57:40, skipping insertion in model container [2020-10-09 12:57:40,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:57:40" (2/3) ... [2020-10-09 12:57:40,951 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@788486a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.10 12:57:40, skipping insertion in model container [2020-10-09 12:57:40,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.10 12:57:40" (3/3) ... [2020-10-09 12:57:40,953 INFO L111 eAbstractionObserver]: Analyzing ICFG safe017_tso.opt.i [2020-10-09 12:57:40,965 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-09 12:57:40,965 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-09 12:57:40,972 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-09 12:57:40,973 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-09 12:57:41,001 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:57:41,002 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:57:41,002 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:57:41,002 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:57:41,003 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:57:41,003 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:57:41,003 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:57:41,004 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:57:41,004 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:57:41,004 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:57:41,005 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:57:41,005 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:57:41,005 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:57:41,006 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:57:41,006 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:57:41,006 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:57:41,007 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:57:41,007 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:57:41,010 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:57:41,011 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:57:41,011 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:57:41,011 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:57:41,021 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:57:41,021 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:57:41,022 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:57:41,022 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:57:41,026 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:57:41,026 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:57:41,026 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:57:41,027 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:57:41,046 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-09 12:57:41,065 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-09 12:57:41,065 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-09 12:57:41,065 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-09 12:57:41,066 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-09 12:57:41,066 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-09 12:57:41,066 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-09 12:57:41,066 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-09 12:57:41,066 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-09 12:57:41,079 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-09 12:57:41,081 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 75 places, 67 transitions, 149 flow [2020-10-09 12:57:41,084 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 75 places, 67 transitions, 149 flow [2020-10-09 12:57:41,086 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 75 places, 67 transitions, 149 flow [2020-10-09 12:57:41,128 INFO L129 PetriNetUnfolder]: 2/64 cut-off events. [2020-10-09 12:57:41,129 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-09 12:57:41,134 INFO L80 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 64 events. 2/64 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-10-09 12:57:41,136 INFO L117 LiptonReduction]: Number of co-enabled transitions 1178 [2020-10-09 12:57:42,651 INFO L132 LiptonReduction]: Checked pairs total: 1902 [2020-10-09 12:57:42,652 INFO L134 LiptonReduction]: Total number of compositions: 54 [2020-10-09 12:57:42,659 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 55 flow [2020-10-09 12:57:42,690 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 226 states. [2020-10-09 12:57:42,692 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states. [2020-10-09 12:57:42,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-09 12:57:42,718 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:57:42,722 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:57:42,722 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:57:42,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:57:42,727 INFO L82 PathProgramCache]: Analyzing trace with hash -540517404, now seen corresponding path program 1 times [2020-10-09 12:57:42,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:57:42,735 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020914404] [2020-10-09 12:57:42,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:57:42,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:57:42,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:57:42,939 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020914404] [2020-10-09 12:57:42,940 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:57:42,941 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-09 12:57:42,942 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864977720] [2020-10-09 12:57:42,947 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-09 12:57:42,947 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:57:42,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-09 12:57:42,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-09 12:57:42,965 INFO L87 Difference]: Start difference. First operand 226 states. Second operand 3 states. [2020-10-09 12:57:43,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:57:43,019 INFO L93 Difference]: Finished difference Result 220 states and 612 transitions. [2020-10-09 12:57:43,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-09 12:57:43,021 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-09 12:57:43,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:57:43,037 INFO L225 Difference]: With dead ends: 220 [2020-10-09 12:57:43,037 INFO L226 Difference]: Without dead ends: 172 [2020-10-09 12:57:43,038 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-09 12:57:43,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-10-09 12:57:43,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2020-10-09 12:57:43,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-10-09 12:57:43,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 460 transitions. [2020-10-09 12:57:43,111 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 460 transitions. Word has length 8 [2020-10-09 12:57:43,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:57:43,112 INFO L481 AbstractCegarLoop]: Abstraction has 172 states and 460 transitions. [2020-10-09 12:57:43,113 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-09 12:57:43,113 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 460 transitions. [2020-10-09 12:57:43,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-09 12:57:43,116 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:57:43,116 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:57:43,117 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-09 12:57:43,117 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:57:43,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:57:43,118 INFO L82 PathProgramCache]: Analyzing trace with hash 533202091, now seen corresponding path program 1 times [2020-10-09 12:57:43,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:57:43,119 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593909895] [2020-10-09 12:57:43,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:57:43,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:57:43,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:57:43,230 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593909895] [2020-10-09 12:57:43,230 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:57:43,230 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-09 12:57:43,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127016131] [2020-10-09 12:57:43,232 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-09 12:57:43,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:57:43,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-09 12:57:43,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-09 12:57:43,234 INFO L87 Difference]: Start difference. First operand 172 states and 460 transitions. Second operand 3 states. [2020-10-09 12:57:43,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:57:43,247 INFO L93 Difference]: Finished difference Result 166 states and 438 transitions. [2020-10-09 12:57:43,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-09 12:57:43,247 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-09 12:57:43,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:57:43,250 INFO L225 Difference]: With dead ends: 166 [2020-10-09 12:57:43,250 INFO L226 Difference]: Without dead ends: 166 [2020-10-09 12:57:43,251 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-09 12:57:43,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-10-09 12:57:43,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2020-10-09 12:57:43,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-10-09 12:57:43,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 438 transitions. [2020-10-09 12:57:43,273 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 438 transitions. Word has length 9 [2020-10-09 12:57:43,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:57:43,273 INFO L481 AbstractCegarLoop]: Abstraction has 166 states and 438 transitions. [2020-10-09 12:57:43,273 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-09 12:57:43,273 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 438 transitions. [2020-10-09 12:57:43,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-09 12:57:43,275 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:57:43,275 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:57:43,275 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-09 12:57:43,276 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:57:43,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:57:43,276 INFO L82 PathProgramCache]: Analyzing trace with hash -650605017, now seen corresponding path program 1 times [2020-10-09 12:57:43,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:57:43,277 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281732254] [2020-10-09 12:57:43,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:57:43,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:57:43,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:57:43,328 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281732254] [2020-10-09 12:57:43,328 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:57:43,328 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-09 12:57:43,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323158262] [2020-10-09 12:57:43,329 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-09 12:57:43,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:57:43,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-09 12:57:43,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-09 12:57:43,330 INFO L87 Difference]: Start difference. First operand 166 states and 438 transitions. Second operand 3 states. [2020-10-09 12:57:43,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:57:43,338 INFO L93 Difference]: Finished difference Result 158 states and 412 transitions. [2020-10-09 12:57:43,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-09 12:57:43,339 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-09 12:57:43,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:57:43,341 INFO L225 Difference]: With dead ends: 158 [2020-10-09 12:57:43,341 INFO L226 Difference]: Without dead ends: 158 [2020-10-09 12:57:43,342 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-09 12:57:43,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-10-09 12:57:43,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2020-10-09 12:57:43,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-10-09 12:57:43,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 412 transitions. [2020-10-09 12:57:43,357 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 412 transitions. Word has length 10 [2020-10-09 12:57:43,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:57:43,358 INFO L481 AbstractCegarLoop]: Abstraction has 158 states and 412 transitions. [2020-10-09 12:57:43,358 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-09 12:57:43,358 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 412 transitions. [2020-10-09 12:57:43,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-09 12:57:43,360 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:57:43,360 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:57:43,360 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-09 12:57:43,361 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:57:43,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:57:43,361 INFO L82 PathProgramCache]: Analyzing trace with hash 1305380691, now seen corresponding path program 1 times [2020-10-09 12:57:43,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:57:43,362 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483178479] [2020-10-09 12:57:43,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:57:43,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:57:43,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:57:43,460 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483178479] [2020-10-09 12:57:43,461 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:57:43,461 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-09 12:57:43,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274925842] [2020-10-09 12:57:43,462 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-09 12:57:43,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:57:43,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-09 12:57:43,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-09 12:57:43,463 INFO L87 Difference]: Start difference. First operand 158 states and 412 transitions. Second operand 4 states. [2020-10-09 12:57:43,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:57:43,496 INFO L93 Difference]: Finished difference Result 218 states and 560 transitions. [2020-10-09 12:57:43,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-09 12:57:43,497 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-09 12:57:43,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:57:43,499 INFO L225 Difference]: With dead ends: 218 [2020-10-09 12:57:43,499 INFO L226 Difference]: Without dead ends: 146 [2020-10-09 12:57:43,500 INFO L673 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 [2020-10-09 12:57:43,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-10-09 12:57:43,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-10-09 12:57:43,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-10-09 12:57:43,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 370 transitions. [2020-10-09 12:57:43,512 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 370 transitions. Word has length 11 [2020-10-09 12:57:43,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:57:43,512 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 370 transitions. [2020-10-09 12:57:43,512 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-09 12:57:43,512 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 370 transitions. [2020-10-09 12:57:43,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-09 12:57:43,513 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:57:43,514 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:57:43,514 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-09 12:57:43,514 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:57:43,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:57:43,515 INFO L82 PathProgramCache]: Analyzing trace with hash 1306080051, now seen corresponding path program 2 times [2020-10-09 12:57:43,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:57:43,515 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249584030] [2020-10-09 12:57:43,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:57:43,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:57:43,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:57:43,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249584030] [2020-10-09 12:57:43,589 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:57:43,589 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-09 12:57:43,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797613994] [2020-10-09 12:57:43,589 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-09 12:57:43,590 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:57:43,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-09 12:57:43,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-09 12:57:43,590 INFO L87 Difference]: Start difference. First operand 146 states and 370 transitions. Second operand 4 states. [2020-10-09 12:57:43,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:57:43,620 INFO L93 Difference]: Finished difference Result 167 states and 388 transitions. [2020-10-09 12:57:43,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-09 12:57:43,621 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-09 12:57:43,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:57:43,622 INFO L225 Difference]: With dead ends: 167 [2020-10-09 12:57:43,622 INFO L226 Difference]: Without dead ends: 125 [2020-10-09 12:57:43,623 INFO L673 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 [2020-10-09 12:57:43,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-10-09 12:57:43,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2020-10-09 12:57:43,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-10-09 12:57:43,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 288 transitions. [2020-10-09 12:57:43,631 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 288 transitions. Word has length 11 [2020-10-09 12:57:43,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:57:43,631 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 288 transitions. [2020-10-09 12:57:43,631 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-09 12:57:43,632 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 288 transitions. [2020-10-09 12:57:43,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-09 12:57:43,633 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:57:43,633 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:57:43,633 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-09 12:57:43,633 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:57:43,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:57:43,634 INFO L82 PathProgramCache]: Analyzing trace with hash 1819207960, now seen corresponding path program 1 times [2020-10-09 12:57:43,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:57:43,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452533503] [2020-10-09 12:57:43,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:57:43,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:57:43,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:57:43,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452533503] [2020-10-09 12:57:43,698 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:57:43,698 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-09 12:57:43,699 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974624474] [2020-10-09 12:57:43,699 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-09 12:57:43,699 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:57:43,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-09 12:57:43,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-09 12:57:43,700 INFO L87 Difference]: Start difference. First operand 125 states and 288 transitions. Second operand 5 states. [2020-10-09 12:57:43,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:57:43,748 INFO L93 Difference]: Finished difference Result 121 states and 257 transitions. [2020-10-09 12:57:43,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-09 12:57:43,748 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-09 12:57:43,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:57:43,749 INFO L225 Difference]: With dead ends: 121 [2020-10-09 12:57:43,749 INFO L226 Difference]: Without dead ends: 93 [2020-10-09 12:57:43,750 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-09 12:57:43,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-10-09 12:57:43,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2020-10-09 12:57:43,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-10-09 12:57:43,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 192 transitions. [2020-10-09 12:57:43,756 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 192 transitions. Word has length 12 [2020-10-09 12:57:43,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:57:43,757 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 192 transitions. [2020-10-09 12:57:43,757 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-09 12:57:43,757 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 192 transitions. [2020-10-09 12:57:43,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-09 12:57:43,758 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:57:43,758 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:57:43,758 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-09 12:57:43,759 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:57:43,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:57:43,759 INFO L82 PathProgramCache]: Analyzing trace with hash 589619789, now seen corresponding path program 1 times [2020-10-09 12:57:43,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:57:43,760 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162197699] [2020-10-09 12:57:43,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:57:43,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:57:43,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:57:43,787 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162197699] [2020-10-09 12:57:43,787 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:57:43,787 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-09 12:57:43,787 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303183329] [2020-10-09 12:57:43,788 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-09 12:57:43,788 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:57:43,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-09 12:57:43,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-09 12:57:43,789 INFO L87 Difference]: Start difference. First operand 93 states and 192 transitions. Second operand 3 states. [2020-10-09 12:57:43,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:57:43,796 INFO L93 Difference]: Finished difference Result 110 states and 218 transitions. [2020-10-09 12:57:43,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-09 12:57:43,796 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-10-09 12:57:43,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:57:43,797 INFO L225 Difference]: With dead ends: 110 [2020-10-09 12:57:43,797 INFO L226 Difference]: Without dead ends: 88 [2020-10-09 12:57:43,798 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-09 12:57:43,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-10-09 12:57:43,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 86. [2020-10-09 12:57:43,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-10-09 12:57:43,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 169 transitions. [2020-10-09 12:57:43,803 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 169 transitions. Word has length 13 [2020-10-09 12:57:43,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:57:43,803 INFO L481 AbstractCegarLoop]: Abstraction has 86 states and 169 transitions. [2020-10-09 12:57:43,803 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-09 12:57:43,804 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 169 transitions. [2020-10-09 12:57:43,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-09 12:57:43,804 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:57:43,805 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:57:43,805 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-09 12:57:43,805 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:57:43,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:57:43,805 INFO L82 PathProgramCache]: Analyzing trace with hash 205369494, now seen corresponding path program 1 times [2020-10-09 12:57:43,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:57:43,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876583712] [2020-10-09 12:57:43,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:57:43,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:57:43,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:57:43,832 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876583712] [2020-10-09 12:57:43,832 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:57:43,832 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-09 12:57:43,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432579056] [2020-10-09 12:57:43,833 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-09 12:57:43,833 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:57:43,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-09 12:57:43,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-09 12:57:43,834 INFO L87 Difference]: Start difference. First operand 86 states and 169 transitions. Second operand 3 states. [2020-10-09 12:57:43,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:57:43,847 INFO L93 Difference]: Finished difference Result 104 states and 195 transitions. [2020-10-09 12:57:43,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-09 12:57:43,847 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-10-09 12:57:43,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:57:43,848 INFO L225 Difference]: With dead ends: 104 [2020-10-09 12:57:43,848 INFO L226 Difference]: Without dead ends: 66 [2020-10-09 12:57:43,849 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-09 12:57:43,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-10-09 12:57:43,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 65. [2020-10-09 12:57:43,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-10-09 12:57:43,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 111 transitions. [2020-10-09 12:57:43,852 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 111 transitions. Word has length 14 [2020-10-09 12:57:43,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:57:43,853 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 111 transitions. [2020-10-09 12:57:43,853 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-09 12:57:43,853 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 111 transitions. [2020-10-09 12:57:43,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-09 12:57:43,854 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:57:43,854 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:57:43,854 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-09 12:57:43,854 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:57:43,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:57:43,855 INFO L82 PathProgramCache]: Analyzing trace with hash -610616562, now seen corresponding path program 2 times [2020-10-09 12:57:43,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:57:43,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45477037] [2020-10-09 12:57:43,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:57:43,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:57:43,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:57:43,886 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45477037] [2020-10-09 12:57:43,886 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:57:43,887 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-09 12:57:43,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551622024] [2020-10-09 12:57:43,887 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-09 12:57:43,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:57:43,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-09 12:57:43,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-09 12:57:43,888 INFO L87 Difference]: Start difference. First operand 65 states and 111 transitions. Second operand 4 states. [2020-10-09 12:57:43,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:57:43,905 INFO L93 Difference]: Finished difference Result 71 states and 116 transitions. [2020-10-09 12:57:43,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-09 12:57:43,906 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-09 12:57:43,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:57:43,906 INFO L225 Difference]: With dead ends: 71 [2020-10-09 12:57:43,907 INFO L226 Difference]: Without dead ends: 64 [2020-10-09 12:57:43,907 INFO L673 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 [2020-10-09 12:57:43,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-10-09 12:57:43,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 63. [2020-10-09 12:57:43,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-10-09 12:57:43,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 106 transitions. [2020-10-09 12:57:43,910 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 106 transitions. Word has length 14 [2020-10-09 12:57:43,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:57:43,911 INFO L481 AbstractCegarLoop]: Abstraction has 63 states and 106 transitions. [2020-10-09 12:57:43,911 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-09 12:57:43,911 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 106 transitions. [2020-10-09 12:57:43,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-09 12:57:43,912 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:57:43,912 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:57:43,912 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-09 12:57:43,912 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:57:43,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:57:43,913 INFO L82 PathProgramCache]: Analyzing trace with hash -375565572, now seen corresponding path program 3 times [2020-10-09 12:57:43,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:57:43,913 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517879297] [2020-10-09 12:57:43,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:57:43,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:57:43,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:57:43,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517879297] [2020-10-09 12:57:43,980 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:57:43,980 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-09 12:57:43,980 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282472567] [2020-10-09 12:57:43,981 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-09 12:57:43,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:57:43,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-09 12:57:43,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-09 12:57:43,982 INFO L87 Difference]: Start difference. First operand 63 states and 106 transitions. Second operand 6 states. [2020-10-09 12:57:44,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:57:44,011 INFO L93 Difference]: Finished difference Result 58 states and 100 transitions. [2020-10-09 12:57:44,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-09 12:57:44,011 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-09 12:57:44,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:57:44,011 INFO L225 Difference]: With dead ends: 58 [2020-10-09 12:57:44,011 INFO L226 Difference]: Without dead ends: 0 [2020-10-09 12:57:44,012 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-09 12:57:44,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-09 12:57:44,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-09 12:57:44,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-09 12:57:44,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-09 12:57:44,013 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-10-09 12:57:44,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:57:44,013 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-09 12:57:44,014 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-09 12:57:44,014 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-09 12:57:44,014 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-09 12:57:44,014 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-09 12:57:44,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.10 12:57:44 BasicIcfg [2020-10-09 12:57:44,018 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-09 12:57:44,021 INFO L168 Benchmark]: Toolchain (without parser) took 4284.45 ms. Allocated memory was 247.5 MB in the beginning and 367.0 MB in the end (delta: 119.5 MB). Free memory was 202.6 MB in the beginning and 250.3 MB in the end (delta: -47.7 MB). Peak memory consumption was 71.9 MB. Max. memory is 14.2 GB. [2020-10-09 12:57:44,022 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 247.5 MB. Free memory was 225.5 MB in the beginning and 224.7 MB in the end (delta: 839.0 kB). Peak memory consumption was 839.0 kB. Max. memory is 14.2 GB. [2020-10-09 12:57:44,023 INFO L168 Benchmark]: CACSL2BoogieTranslator took 694.78 ms. Allocated memory was 247.5 MB in the beginning and 304.1 MB in the end (delta: 56.6 MB). Free memory was 202.6 MB in the beginning and 258.6 MB in the end (delta: -56.0 MB). Peak memory consumption was 32.3 MB. Max. memory is 14.2 GB. [2020-10-09 12:57:44,024 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.42 ms. Allocated memory is still 304.1 MB. Free memory was 258.6 MB in the beginning and 257.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. [2020-10-09 12:57:44,025 INFO L168 Benchmark]: Boogie Preprocessor took 27.40 ms. Allocated memory is still 304.1 MB. Free memory was 257.0 MB in the beginning and 255.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. [2020-10-09 12:57:44,026 INFO L168 Benchmark]: RCFGBuilder took 436.58 ms. Allocated memory is still 304.1 MB. Free memory was 255.3 MB in the beginning and 232.9 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 14.2 GB. [2020-10-09 12:57:44,027 INFO L168 Benchmark]: TraceAbstraction took 3072.30 ms. Allocated memory was 304.1 MB in the beginning and 367.0 MB in the end (delta: 62.9 MB). Free memory was 232.9 MB in the beginning and 250.3 MB in the end (delta: -17.4 MB). Peak memory consumption was 45.5 MB. Max. memory is 14.2 GB. [2020-10-09 12:57:44,031 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 247.5 MB. Free memory was 225.5 MB in the beginning and 224.7 MB in the end (delta: 839.0 kB). Peak memory consumption was 839.0 kB. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 694.78 ms. Allocated memory was 247.5 MB in the beginning and 304.1 MB in the end (delta: 56.6 MB). Free memory was 202.6 MB in the beginning and 258.6 MB in the end (delta: -56.0 MB). Peak memory consumption was 32.3 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 47.42 ms. Allocated memory is still 304.1 MB. Free memory was 258.6 MB in the beginning and 257.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 27.40 ms. Allocated memory is still 304.1 MB. Free memory was 257.0 MB in the beginning and 255.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. * RCFGBuilder took 436.58 ms. Allocated memory is still 304.1 MB. Free memory was 255.3 MB in the beginning and 232.9 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 14.2 GB. * TraceAbstraction took 3072.30 ms. Allocated memory was 304.1 MB in the beginning and 367.0 MB in the end (delta: 62.9 MB). Free memory was 232.9 MB in the beginning and 250.3 MB in the end (delta: -17.4 MB). Peak memory consumption was 45.5 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 779 VarBasedMoverChecksPositive, 36 VarBasedMoverChecksNegative, 9 SemBasedMoverChecksPositive, 27 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 48 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.5s, 75 PlacesBefore, 30 PlacesAfterwards, 67 TransitionsBefore, 20 TransitionsAfterwards, 1178 CoEnabledTransitionPairs, 5 FixpointIterations, 12 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 54 TotalNumberOfCompositions, 1902 MoverChecksTotal - PositiveResult [Line: 7]: 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, 66 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.9s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 179 SDtfs, 120 SDslu, 194 SDs, 0 SdLazy, 99 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=226occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 4 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 116 NumberOfCodeBlocks, 116 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 106 ConstructedInterpolants, 0 QuantifiedInterpolants, 2936 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...