/usr/bin/java -Xmx8000000000 -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/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin002_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-21 23:09:50,480 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-21 23:09:50,482 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-21 23:09:50,507 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-21 23:09:50,508 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-21 23:09:50,509 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-21 23:09:50,510 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-21 23:09:50,512 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-21 23:09:50,513 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-21 23:09:50,514 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-21 23:09:50,515 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-21 23:09:50,516 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-21 23:09:50,517 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-21 23:09:50,518 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-21 23:09:50,519 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-21 23:09:50,520 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-21 23:09:50,521 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-21 23:09:50,522 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-21 23:09:50,523 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-21 23:09:50,525 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-21 23:09:50,527 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-21 23:09:50,528 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-21 23:09:50,529 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-21 23:09:50,530 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-21 23:09:50,533 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-21 23:09:50,533 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-21 23:09:50,533 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-21 23:09:50,534 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-21 23:09:50,535 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-21 23:09:50,536 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-21 23:09:50,539 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-21 23:09:50,540 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-21 23:09:50,541 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-21 23:09:50,542 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-21 23:09:50,543 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-21 23:09:50,544 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-21 23:09:50,544 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-21 23:09:50,545 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-21 23:09:50,545 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-21 23:09:50,546 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-21 23:09:50,547 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-21 23:09:50,549 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.epf [2020-10-21 23:09:50,602 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-21 23:09:50,602 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-21 23:09:50,604 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-21 23:09:50,608 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-21 23:09:50,608 INFO L138 SettingsManager]: * Use SBE=true [2020-10-21 23:09:50,609 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-21 23:09:50,609 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-21 23:09:50,609 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-21 23:09:50,609 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-21 23:09:50,609 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-21 23:09:50,610 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-21 23:09:50,610 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-21 23:09:50,610 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-21 23:09:50,610 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-21 23:09:50,610 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-21 23:09:50,611 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-21 23:09:50,611 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-21 23:09:50,615 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-21 23:09:50,615 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-21 23:09:50,616 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-21 23:09:50,616 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-21 23:09:50,616 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 23:09:50,616 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-21 23:09:50,616 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-21 23:09:50,617 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-21 23:09:50,617 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-21 23:09:50,617 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-21 23:09:50,617 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-21 23:09:50,617 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-21 23:09:50,954 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-21 23:09:50,968 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-21 23:09:50,971 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-21 23:09:50,973 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-21 23:09:50,973 INFO L275 PluginConnector]: CDTParser initialized [2020-10-21 23:09:50,974 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_pso.opt.i [2020-10-21 23:09:51,054 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da2ec2bd1/1807cee1107c4e3998a94ce234dcb789/FLAG467b76d0e [2020-10-21 23:09:51,665 INFO L306 CDTParser]: Found 1 translation units. [2020-10-21 23:09:51,666 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_pso.opt.i [2020-10-21 23:09:51,682 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da2ec2bd1/1807cee1107c4e3998a94ce234dcb789/FLAG467b76d0e [2020-10-21 23:09:51,908 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da2ec2bd1/1807cee1107c4e3998a94ce234dcb789 [2020-10-21 23:09:51,919 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-21 23:09:51,926 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-21 23:09:51,927 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-21 23:09:51,927 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-21 23:09:51,931 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-21 23:09:51,932 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 11:09:51" (1/1) ... [2020-10-21 23:09:51,935 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fba72e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:09:51, skipping insertion in model container [2020-10-21 23:09:51,935 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 11:09:51" (1/1) ... [2020-10-21 23:09:51,943 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-21 23:09:52,003 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-21 23:09:52,466 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 23:09:52,477 INFO L203 MainTranslator]: Completed pre-run [2020-10-21 23:09:52,529 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 23:09:52,624 INFO L208 MainTranslator]: Completed translation [2020-10-21 23:09:52,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:09:52 WrapperNode [2020-10-21 23:09:52,626 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-21 23:09:52,628 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-21 23:09:52,628 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-21 23:09:52,628 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-21 23:09:52,642 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:09:52" (1/1) ... [2020-10-21 23:09:52,660 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:09:52" (1/1) ... [2020-10-21 23:09:52,685 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-21 23:09:52,685 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-21 23:09:52,685 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-21 23:09:52,685 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-21 23:09:52,693 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:09:52" (1/1) ... [2020-10-21 23:09:52,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:09:52" (1/1) ... [2020-10-21 23:09:52,697 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:09:52" (1/1) ... [2020-10-21 23:09:52,697 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:09:52" (1/1) ... [2020-10-21 23:09:52,705 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:09:52" (1/1) ... [2020-10-21 23:09:52,707 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:09:52" (1/1) ... [2020-10-21 23:09:52,709 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:09:52" (1/1) ... [2020-10-21 23:09:52,713 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-21 23:09:52,714 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-21 23:09:52,714 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-21 23:09:52,714 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-21 23:09:52,715 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:09:52" (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 [2020-10-21 23:09:52,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-21 23:09:52,805 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-21 23:09:52,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-21 23:09:52,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-21 23:09:52,806 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-21 23:09:52,807 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-21 23:09:52,808 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-21 23:09:52,809 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-21 23:09:52,810 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-21 23:09:52,810 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-21 23:09:52,812 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-21 23:09:52,812 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-21 23:09:52,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-21 23:09:52,813 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-21 23:09:52,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-21 23:09:52,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-21 23:09:52,815 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-21 23:09:53,215 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-21 23:09:53,216 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-21 23:09:53,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 11:09:53 BoogieIcfgContainer [2020-10-21 23:09:53,219 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-21 23:09:53,221 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-21 23:09:53,221 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-21 23:09:53,225 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-21 23:09:53,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 11:09:51" (1/3) ... [2020-10-21 23:09:53,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bc47b4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 11:09:53, skipping insertion in model container [2020-10-21 23:09:53,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:09:52" (2/3) ... [2020-10-21 23:09:53,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bc47b4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 11:09:53, skipping insertion in model container [2020-10-21 23:09:53,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 11:09:53" (3/3) ... [2020-10-21 23:09:53,229 INFO L111 eAbstractionObserver]: Analyzing ICFG thin002_pso.opt.i [2020-10-21 23:09:53,242 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-21 23:09:53,242 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-21 23:09:53,251 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-21 23:09:53,252 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-21 23:09:53,286 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:53,286 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:53,286 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:53,287 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:53,287 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:53,287 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:53,289 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:53,289 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:53,289 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:53,289 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:53,289 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:53,290 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:53,290 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:53,290 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:53,291 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:53,291 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:53,291 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:53,291 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:53,292 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:53,292 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:53,292 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:53,292 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:53,293 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:53,293 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:53,297 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:53,297 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:53,297 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:53,298 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:53,317 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:53,317 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:53,318 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:53,318 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:53,321 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:53,321 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:53,321 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:53,321 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:53,326 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:53,327 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:53,327 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:53,327 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:53,329 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-21 23:09:53,345 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-21 23:09:53,368 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 23:09:53,369 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 23:09:53,369 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-21 23:09:53,369 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 23:09:53,369 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 23:09:53,369 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 23:09:53,369 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 23:09:53,370 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 23:09:53,386 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-21 23:09:53,387 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 105 places, 95 transitions, 210 flow [2020-10-21 23:09:53,390 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 105 places, 95 transitions, 210 flow [2020-10-21 23:09:53,392 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 105 places, 95 transitions, 210 flow [2020-10-21 23:09:53,451 INFO L129 PetriNetUnfolder]: 3/91 cut-off events. [2020-10-21 23:09:53,452 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-21 23:09:53,461 INFO L80 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 91 events. 3/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 74 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2020-10-21 23:09:53,468 INFO L116 LiptonReduction]: Number of co-enabled transitions 2256 [2020-10-21 23:09:55,256 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2020-10-21 23:09:55,362 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-10-21 23:09:55,385 INFO L131 LiptonReduction]: Checked pairs total: 4418 [2020-10-21 23:09:55,385 INFO L133 LiptonReduction]: Total number of compositions: 80 [2020-10-21 23:09:55,394 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 29 transitions, 78 flow [2020-10-21 23:09:55,530 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1450 states. [2020-10-21 23:09:55,532 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states. [2020-10-21 23:09:55,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-21 23:09:55,543 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:09:55,544 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:09:55,544 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:09:55,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:09:55,551 INFO L82 PathProgramCache]: Analyzing trace with hash 481695671, now seen corresponding path program 1 times [2020-10-21 23:09:55,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:09:55,562 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177409240] [2020-10-21 23:09:55,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:09:55,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:09:55,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:09:55,768 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177409240] [2020-10-21 23:09:55,769 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:09:55,770 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 23:09:55,770 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115333545] [2020-10-21 23:09:55,777 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-21 23:09:55,778 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:09:55,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-21 23:09:55,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-21 23:09:55,798 INFO L87 Difference]: Start difference. First operand 1450 states. Second operand 2 states. [2020-10-21 23:09:55,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:09:55,862 INFO L93 Difference]: Finished difference Result 1450 states and 5376 transitions. [2020-10-21 23:09:55,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-21 23:09:55,864 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-21 23:09:55,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:09:55,899 INFO L225 Difference]: With dead ends: 1450 [2020-10-21 23:09:55,899 INFO L226 Difference]: Without dead ends: 1194 [2020-10-21 23:09:55,901 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-21 23:09:55,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1194 states. [2020-10-21 23:09:56,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1194 to 1194. [2020-10-21 23:09:56,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1194 states. [2020-10-21 23:09:56,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1194 states to 1194 states and 4352 transitions. [2020-10-21 23:09:56,044 INFO L78 Accepts]: Start accepts. Automaton has 1194 states and 4352 transitions. Word has length 10 [2020-10-21 23:09:56,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:09:56,046 INFO L481 AbstractCegarLoop]: Abstraction has 1194 states and 4352 transitions. [2020-10-21 23:09:56,046 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-21 23:09:56,046 INFO L276 IsEmpty]: Start isEmpty. Operand 1194 states and 4352 transitions. [2020-10-21 23:09:56,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-21 23:09:56,049 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:09:56,049 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:09:56,050 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-21 23:09:56,050 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:09:56,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:09:56,051 INFO L82 PathProgramCache]: Analyzing trace with hash 2047662136, now seen corresponding path program 1 times [2020-10-21 23:09:56,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:09:56,051 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200989674] [2020-10-21 23:09:56,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:09:56,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:09:56,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:09:56,283 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200989674] [2020-10-21 23:09:56,283 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:09:56,284 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 23:09:56,284 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207767540] [2020-10-21 23:09:56,286 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 23:09:56,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:09:56,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 23:09:56,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 23:09:56,287 INFO L87 Difference]: Start difference. First operand 1194 states and 4352 transitions. Second operand 4 states. [2020-10-21 23:09:56,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:09:56,336 INFO L93 Difference]: Finished difference Result 1322 states and 4640 transitions. [2020-10-21 23:09:56,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 23:09:56,337 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-21 23:09:56,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:09:56,347 INFO L225 Difference]: With dead ends: 1322 [2020-10-21 23:09:56,347 INFO L226 Difference]: Without dead ends: 1066 [2020-10-21 23:09:56,348 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 [2020-10-21 23:09:56,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2020-10-21 23:09:56,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1066. [2020-10-21 23:09:56,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1066 states. [2020-10-21 23:09:56,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 3808 transitions. [2020-10-21 23:09:56,388 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 3808 transitions. Word has length 11 [2020-10-21 23:09:56,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:09:56,389 INFO L481 AbstractCegarLoop]: Abstraction has 1066 states and 3808 transitions. [2020-10-21 23:09:56,389 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 23:09:56,389 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 3808 transitions. [2020-10-21 23:09:56,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-21 23:09:56,392 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:09:56,392 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:09:56,392 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-21 23:09:56,392 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:09:56,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:09:56,393 INFO L82 PathProgramCache]: Analyzing trace with hash -947011909, now seen corresponding path program 1 times [2020-10-21 23:09:56,393 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:09:56,394 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146803760] [2020-10-21 23:09:56,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:09:56,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:09:56,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:09:56,462 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146803760] [2020-10-21 23:09:56,462 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:09:56,462 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 23:09:56,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619938752] [2020-10-21 23:09:56,463 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 23:09:56,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:09:56,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 23:09:56,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 23:09:56,464 INFO L87 Difference]: Start difference. First operand 1066 states and 3808 transitions. Second operand 4 states. [2020-10-21 23:09:56,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:09:56,509 INFO L93 Difference]: Finished difference Result 1162 states and 4016 transitions. [2020-10-21 23:09:56,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 23:09:56,510 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-21 23:09:56,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:09:56,520 INFO L225 Difference]: With dead ends: 1162 [2020-10-21 23:09:56,520 INFO L226 Difference]: Without dead ends: 970 [2020-10-21 23:09:56,520 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 [2020-10-21 23:09:56,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2020-10-21 23:09:56,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 970. [2020-10-21 23:09:56,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 970 states. [2020-10-21 23:09:56,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 3408 transitions. [2020-10-21 23:09:56,558 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 3408 transitions. Word has length 12 [2020-10-21 23:09:56,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:09:56,558 INFO L481 AbstractCegarLoop]: Abstraction has 970 states and 3408 transitions. [2020-10-21 23:09:56,558 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 23:09:56,558 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 3408 transitions. [2020-10-21 23:09:56,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-21 23:09:56,561 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:09:56,561 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:09:56,561 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-21 23:09:56,561 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:09:56,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:09:56,562 INFO L82 PathProgramCache]: Analyzing trace with hash 639503440, now seen corresponding path program 1 times [2020-10-21 23:09:56,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:09:56,562 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185351447] [2020-10-21 23:09:56,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:09:56,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:09:56,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:09:56,633 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185351447] [2020-10-21 23:09:56,633 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:09:56,633 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 23:09:56,633 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151939526] [2020-10-21 23:09:56,634 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 23:09:56,634 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:09:56,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 23:09:56,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 23:09:56,635 INFO L87 Difference]: Start difference. First operand 970 states and 3408 transitions. Second operand 4 states. [2020-10-21 23:09:56,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:09:56,675 INFO L93 Difference]: Finished difference Result 1042 states and 3558 transitions. [2020-10-21 23:09:56,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 23:09:56,676 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-21 23:09:56,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:09:56,684 INFO L225 Difference]: With dead ends: 1042 [2020-10-21 23:09:56,684 INFO L226 Difference]: Without dead ends: 898 [2020-10-21 23:09:56,684 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 [2020-10-21 23:09:56,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2020-10-21 23:09:56,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 898. [2020-10-21 23:09:56,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 898 states. [2020-10-21 23:09:56,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 3114 transitions. [2020-10-21 23:09:56,716 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 3114 transitions. Word has length 13 [2020-10-21 23:09:56,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:09:56,717 INFO L481 AbstractCegarLoop]: Abstraction has 898 states and 3114 transitions. [2020-10-21 23:09:56,717 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 23:09:56,717 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 3114 transitions. [2020-10-21 23:09:56,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-21 23:09:56,719 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:09:56,719 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:09:56,719 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-21 23:09:56,720 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:09:56,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:09:56,720 INFO L82 PathProgramCache]: Analyzing trace with hash -1650268135, now seen corresponding path program 1 times [2020-10-21 23:09:56,720 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:09:56,720 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741324747] [2020-10-21 23:09:56,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:09:56,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:09:56,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:09:56,807 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741324747] [2020-10-21 23:09:56,807 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:09:56,807 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 23:09:56,807 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173099928] [2020-10-21 23:09:56,808 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 23:09:56,808 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:09:56,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 23:09:56,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-21 23:09:56,809 INFO L87 Difference]: Start difference. First operand 898 states and 3114 transitions. Second operand 5 states. [2020-10-21 23:09:56,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:09:56,868 INFO L93 Difference]: Finished difference Result 1138 states and 3835 transitions. [2020-10-21 23:09:56,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-21 23:09:56,868 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-21 23:09:56,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:09:56,873 INFO L225 Difference]: With dead ends: 1138 [2020-10-21 23:09:56,873 INFO L226 Difference]: Without dead ends: 550 [2020-10-21 23:09:56,874 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-21 23:09:56,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2020-10-21 23:09:56,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2020-10-21 23:09:56,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 550 states. [2020-10-21 23:09:56,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 1734 transitions. [2020-10-21 23:09:56,892 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 1734 transitions. Word has length 14 [2020-10-21 23:09:56,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:09:56,892 INFO L481 AbstractCegarLoop]: Abstraction has 550 states and 1734 transitions. [2020-10-21 23:09:56,893 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 23:09:56,893 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 1734 transitions. [2020-10-21 23:09:56,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 23:09:56,894 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:09:56,894 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:09:56,895 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-21 23:09:56,895 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:09:56,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:09:56,895 INFO L82 PathProgramCache]: Analyzing trace with hash -1322311964, now seen corresponding path program 1 times [2020-10-21 23:09:56,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:09:56,896 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041853608] [2020-10-21 23:09:56,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:09:56,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:09:56,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:09:56,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041853608] [2020-10-21 23:09:56,951 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:09:56,951 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 23:09:56,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624922938] [2020-10-21 23:09:56,952 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 23:09:56,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:09:56,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 23:09:56,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-21 23:09:56,953 INFO L87 Difference]: Start difference. First operand 550 states and 1734 transitions. Second operand 5 states. [2020-10-21 23:09:57,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:09:57,010 INFO L93 Difference]: Finished difference Result 664 states and 2065 transitions. [2020-10-21 23:09:57,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-21 23:09:57,011 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-10-21 23:09:57,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:09:57,014 INFO L225 Difference]: With dead ends: 664 [2020-10-21 23:09:57,014 INFO L226 Difference]: Without dead ends: 370 [2020-10-21 23:09:57,015 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-21 23:09:57,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2020-10-21 23:09:57,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 370. [2020-10-21 23:09:57,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 370 states. [2020-10-21 23:09:57,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 1080 transitions. [2020-10-21 23:09:57,028 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 1080 transitions. Word has length 16 [2020-10-21 23:09:57,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:09:57,028 INFO L481 AbstractCegarLoop]: Abstraction has 370 states and 1080 transitions. [2020-10-21 23:09:57,028 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 23:09:57,028 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 1080 transitions. [2020-10-21 23:09:57,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-21 23:09:57,030 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:09:57,030 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:09:57,030 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-21 23:09:57,030 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:09:57,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:09:57,031 INFO L82 PathProgramCache]: Analyzing trace with hash -1741286976, now seen corresponding path program 1 times [2020-10-21 23:09:57,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:09:57,031 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091075156] [2020-10-21 23:09:57,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:09:57,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:09:57,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:09:57,128 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091075156] [2020-10-21 23:09:57,129 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:09:57,129 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 23:09:57,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169932354] [2020-10-21 23:09:57,130 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 23:09:57,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:09:57,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 23:09:57,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-21 23:09:57,131 INFO L87 Difference]: Start difference. First operand 370 states and 1080 transitions. Second operand 5 states. [2020-10-21 23:09:57,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:09:57,178 INFO L93 Difference]: Finished difference Result 514 states and 1460 transitions. [2020-10-21 23:09:57,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-21 23:09:57,179 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-21 23:09:57,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:09:57,180 INFO L225 Difference]: With dead ends: 514 [2020-10-21 23:09:57,181 INFO L226 Difference]: Without dead ends: 214 [2020-10-21 23:09:57,181 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-21 23:09:57,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2020-10-21 23:09:57,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2020-10-21 23:09:57,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-10-21 23:09:57,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 566 transitions. [2020-10-21 23:09:57,187 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 566 transitions. Word has length 17 [2020-10-21 23:09:57,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:09:57,188 INFO L481 AbstractCegarLoop]: Abstraction has 214 states and 566 transitions. [2020-10-21 23:09:57,188 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 23:09:57,188 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 566 transitions. [2020-10-21 23:09:57,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-21 23:09:57,189 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:09:57,189 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:09:57,189 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-21 23:09:57,189 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:09:57,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:09:57,190 INFO L82 PathProgramCache]: Analyzing trace with hash 243529614, now seen corresponding path program 1 times [2020-10-21 23:09:57,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:09:57,190 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245955849] [2020-10-21 23:09:57,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:09:57,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:09:57,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:09:57,248 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245955849] [2020-10-21 23:09:57,249 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:09:57,249 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-21 23:09:57,249 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085775082] [2020-10-21 23:09:57,249 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-21 23:09:57,250 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:09:57,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-21 23:09:57,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-21 23:09:57,250 INFO L87 Difference]: Start difference. First operand 214 states and 566 transitions. Second operand 6 states. [2020-10-21 23:09:57,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:09:57,339 INFO L93 Difference]: Finished difference Result 190 states and 490 transitions. [2020-10-21 23:09:57,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-21 23:09:57,339 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-10-21 23:09:57,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:09:57,340 INFO L225 Difference]: With dead ends: 190 [2020-10-21 23:09:57,340 INFO L226 Difference]: Without dead ends: 0 [2020-10-21 23:09:57,340 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-10-21 23:09:57,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-21 23:09:57,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-21 23:09:57,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-21 23:09:57,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-21 23:09:57,342 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-21 23:09:57,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:09:57,342 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-21 23:09:57,342 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-21 23:09:57,342 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-21 23:09:57,343 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-21 23:09:57,343 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-21 23:09:57,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 11:09:57 BasicIcfg [2020-10-21 23:09:57,347 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-21 23:09:57,349 INFO L168 Benchmark]: Toolchain (without parser) took 5427.89 ms. Allocated memory was 138.9 MB in the beginning and 294.6 MB in the end (delta: 155.7 MB). Free memory was 100.2 MB in the beginning and 154.9 MB in the end (delta: -54.7 MB). Peak memory consumption was 101.0 MB. Max. memory is 7.1 GB. [2020-10-21 23:09:57,350 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-21 23:09:57,350 INFO L168 Benchmark]: CACSL2BoogieTranslator took 699.39 ms. Allocated memory was 138.9 MB in the beginning and 201.3 MB in the end (delta: 62.4 MB). Free memory was 99.3 MB in the beginning and 154.8 MB in the end (delta: -55.5 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. [2020-10-21 23:09:57,351 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.10 ms. Allocated memory is still 201.3 MB. Free memory was 154.8 MB in the beginning and 152.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-10-21 23:09:57,352 INFO L168 Benchmark]: Boogie Preprocessor took 28.40 ms. Allocated memory is still 201.3 MB. Free memory was 152.1 MB in the beginning and 150.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-10-21 23:09:57,353 INFO L168 Benchmark]: RCFGBuilder took 505.30 ms. Allocated memory is still 201.3 MB. Free memory was 150.7 MB in the beginning and 124.2 MB in the end (delta: 26.5 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. [2020-10-21 23:09:57,354 INFO L168 Benchmark]: TraceAbstraction took 4126.08 ms. Allocated memory was 201.3 MB in the beginning and 294.6 MB in the end (delta: 93.3 MB). Free memory was 123.6 MB in the beginning and 154.9 MB in the end (delta: -31.3 MB). Peak memory consumption was 62.0 MB. Max. memory is 7.1 GB. [2020-10-21 23:09:57,358 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 699.39 ms. Allocated memory was 138.9 MB in the beginning and 201.3 MB in the end (delta: 62.4 MB). Free memory was 99.3 MB in the beginning and 154.8 MB in the end (delta: -55.5 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 57.10 ms. Allocated memory is still 201.3 MB. Free memory was 154.8 MB in the beginning and 152.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.40 ms. Allocated memory is still 201.3 MB. Free memory was 152.1 MB in the beginning and 150.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 505.30 ms. Allocated memory is still 201.3 MB. Free memory was 150.7 MB in the beginning and 124.2 MB in the end (delta: 26.5 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4126.08 ms. Allocated memory was 201.3 MB in the beginning and 294.6 MB in the end (delta: 93.3 MB). Free memory was 123.6 MB in the beginning and 154.9 MB in the end (delta: -31.3 MB). Peak memory consumption was 62.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1227 VarBasedMoverChecksPositive, 33 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 95 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.9s, 105 PlacesBefore, 41 PlacesAfterwards, 95 TransitionsBefore, 29 TransitionsAfterwards, 2256 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 2 ChoiceCompositions, 80 TotalNumberOfCompositions, 4418 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 5 procedures, 93 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.9s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 226 SDtfs, 299 SDslu, 334 SDs, 0 SdLazy, 76 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1450occurred 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: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 111 NumberOfCodeBlocks, 111 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 103 ConstructedInterpolants, 0 QuantifiedInterpolants, 5237 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...