/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/safe009_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 12:08:27,506 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 12:08:27,509 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 12:08:27,534 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 12:08:27,534 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 12:08:27,535 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 12:08:27,537 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 12:08:27,539 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 12:08:27,541 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 12:08:27,542 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 12:08:27,543 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 12:08:27,544 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 12:08:27,545 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 12:08:27,546 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 12:08:27,547 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 12:08:27,548 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 12:08:27,549 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 12:08:27,550 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 12:08:27,552 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 12:08:27,554 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 12:08:27,556 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 12:08:27,557 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 12:08:27,559 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 12:08:27,560 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 12:08:27,562 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 12:08:27,563 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 12:08:27,563 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 12:08:27,564 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 12:08:27,564 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 12:08:27,565 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 12:08:27,566 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 12:08:27,566 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 12:08:27,567 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 12:08:27,568 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 12:08:27,569 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 12:08:27,569 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 12:08:27,570 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 12:08:27,570 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 12:08:27,571 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 12:08:27,572 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 12:08:27,572 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 12:08:27,573 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-10-16 12:08:27,596 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 12:08:27,597 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 12:08:27,598 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 12:08:27,598 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 12:08:27,599 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 12:08:27,599 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 12:08:27,599 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 12:08:27,599 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 12:08:27,599 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 12:08:27,600 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 12:08:27,600 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 12:08:27,600 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 12:08:27,600 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 12:08:27,600 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 12:08:27,601 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 12:08:27,601 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 12:08:27,601 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 12:08:27,601 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 12:08:27,601 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 12:08:27,602 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 12:08:27,602 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 12:08:27,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 12:08:27,602 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 12:08:27,603 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 12:08:27,603 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 12:08:27,603 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 12:08:27,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 12:08:27,603 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 12:08:27,603 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 12:08:27,910 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 12:08:27,923 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 12:08:27,927 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 12:08:27,928 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 12:08:27,929 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 12:08:27,930 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe009_tso.oepc.i [2020-10-16 12:08:28,026 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bd09c53f7/e6a04a43865346829c75e8360b38dab5/FLAG2b972e438 [2020-10-16 12:08:28,618 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 12:08:28,619 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe009_tso.oepc.i [2020-10-16 12:08:28,634 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bd09c53f7/e6a04a43865346829c75e8360b38dab5/FLAG2b972e438 [2020-10-16 12:08:28,857 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bd09c53f7/e6a04a43865346829c75e8360b38dab5 [2020-10-16 12:08:28,868 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 12:08:28,870 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 12:08:28,871 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 12:08:28,871 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 12:08:28,875 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 12:08:28,876 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:08:28" (1/1) ... [2020-10-16 12:08:28,879 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cbb8ae7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:08:28, skipping insertion in model container [2020-10-16 12:08:28,879 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:08:28" (1/1) ... [2020-10-16 12:08:28,887 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 12:08:28,954 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 12:08:29,396 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:08:29,413 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 12:08:29,479 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:08:29,555 INFO L208 MainTranslator]: Completed translation [2020-10-16 12:08:29,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:08:29 WrapperNode [2020-10-16 12:08:29,555 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 12:08:29,556 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 12:08:29,556 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 12:08:29,557 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 12:08:29,566 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:08:29" (1/1) ... [2020-10-16 12:08:29,582 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:08:29" (1/1) ... [2020-10-16 12:08:29,607 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 12:08:29,607 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 12:08:29,607 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 12:08:29,607 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 12:08:29,616 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:08:29" (1/1) ... [2020-10-16 12:08:29,616 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:08:29" (1/1) ... [2020-10-16 12:08:29,620 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:08:29" (1/1) ... [2020-10-16 12:08:29,620 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:08:29" (1/1) ... [2020-10-16 12:08:29,627 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:08:29" (1/1) ... [2020-10-16 12:08:29,630 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:08:29" (1/1) ... [2020-10-16 12:08:29,632 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:08:29" (1/1) ... [2020-10-16 12:08:29,636 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 12:08:29,636 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 12:08:29,636 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 12:08:29,637 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 12:08:29,638 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:08:29" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-16 12:08:29,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 12:08:29,714 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 12:08:29,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 12:08:29,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 12:08:29,714 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 12:08:29,714 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 12:08:29,715 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 12:08:29,715 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 12:08:29,715 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 12:08:29,715 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 12:08:29,715 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 12:08:29,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 12:08:29,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 12:08:29,718 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 12:08:30,061 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 12:08:30,062 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 12:08:30,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:08:30 BoogieIcfgContainer [2020-10-16 12:08:30,064 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 12:08:30,066 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 12:08:30,066 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 12:08:30,069 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 12:08:30,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:08:28" (1/3) ... [2020-10-16 12:08:30,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c8a9828 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:08:30, skipping insertion in model container [2020-10-16 12:08:30,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:08:29" (2/3) ... [2020-10-16 12:08:30,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c8a9828 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:08:30, skipping insertion in model container [2020-10-16 12:08:30,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:08:30" (3/3) ... [2020-10-16 12:08:30,073 INFO L111 eAbstractionObserver]: Analyzing ICFG safe009_tso.oepc.i [2020-10-16 12:08:30,089 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 12:08:30,089 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 12:08:30,099 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 12:08:30,100 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 12:08:30,131 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:30,132 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:30,132 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:30,142 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:30,143 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:30,143 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:30,144 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:30,145 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:30,145 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:30,145 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:30,146 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:30,146 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:30,147 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:30,147 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:30,147 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:30,148 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:30,148 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:30,148 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:30,159 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:30,159 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:30,159 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:30,160 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:30,166 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:30,166 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:30,167 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:30,167 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:30,170 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:30,170 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:30,170 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:30,170 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:30,173 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 12:08:30,188 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-16 12:08:30,210 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 12:08:30,211 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 12:08:30,211 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 12:08:30,211 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 12:08:30,211 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 12:08:30,211 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 12:08:30,212 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 12:08:30,212 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 12:08:30,226 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 12:08:30,227 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 68 transitions, 151 flow [2020-10-16 12:08:30,230 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 68 transitions, 151 flow [2020-10-16 12:08:30,231 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-10-16 12:08:30,275 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-10-16 12:08:30,275 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 12:08:30,281 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-10-16 12:08:30,284 INFO L117 LiptonReduction]: Number of co-enabled transitions 1186 [2020-10-16 12:08:31,616 INFO L132 LiptonReduction]: Checked pairs total: 2093 [2020-10-16 12:08:31,616 INFO L134 LiptonReduction]: Total number of compositions: 56 [2020-10-16 12:08:31,624 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 55 flow [2020-10-16 12:08:31,647 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 234 states. [2020-10-16 12:08:31,649 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states. [2020-10-16 12:08:31,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-16 12:08:31,658 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:08:31,659 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:08:31,659 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:08:31,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:08:31,665 INFO L82 PathProgramCache]: Analyzing trace with hash 364476878, now seen corresponding path program 1 times [2020-10-16 12:08:31,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:08:31,677 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79268374] [2020-10-16 12:08:31,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:08:31,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:08:31,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:08:31,914 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79268374] [2020-10-16 12:08:31,915 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:08:31,915 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 12:08:31,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433094712] [2020-10-16 12:08:31,921 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:08:31,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:08:31,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:08:31,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:08:31,942 INFO L87 Difference]: Start difference. First operand 234 states. Second operand 3 states. [2020-10-16 12:08:32,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:08:32,005 INFO L93 Difference]: Finished difference Result 222 states and 615 transitions. [2020-10-16 12:08:32,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:08:32,009 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-16 12:08:32,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:08:32,033 INFO L225 Difference]: With dead ends: 222 [2020-10-16 12:08:32,033 INFO L226 Difference]: Without dead ends: 174 [2020-10-16 12:08:32,036 INFO L677 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 [2020-10-16 12:08:32,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2020-10-16 12:08:32,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2020-10-16 12:08:32,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-10-16 12:08:32,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 463 transitions. [2020-10-16 12:08:32,098 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 463 transitions. Word has length 8 [2020-10-16 12:08:32,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:08:32,099 INFO L481 AbstractCegarLoop]: Abstraction has 174 states and 463 transitions. [2020-10-16 12:08:32,099 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:08:32,100 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 463 transitions. [2020-10-16 12:08:32,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 12:08:32,101 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:08:32,101 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:08:32,101 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 12:08:32,102 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:08:32,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:08:32,102 INFO L82 PathProgramCache]: Analyzing trace with hash -273417231, now seen corresponding path program 1 times [2020-10-16 12:08:32,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:08:32,103 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017170897] [2020-10-16 12:08:32,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:08:32,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:08:32,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:08:32,207 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017170897] [2020-10-16 12:08:32,207 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:08:32,207 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:08:32,208 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852073425] [2020-10-16 12:08:32,209 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:08:32,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:08:32,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:08:32,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:08:32,210 INFO L87 Difference]: Start difference. First operand 174 states and 463 transitions. Second operand 4 states. [2020-10-16 12:08:32,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:08:32,242 INFO L93 Difference]: Finished difference Result 240 states and 615 transitions. [2020-10-16 12:08:32,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 12:08:32,243 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-16 12:08:32,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:08:32,245 INFO L225 Difference]: With dead ends: 240 [2020-10-16 12:08:32,245 INFO L226 Difference]: Without dead ends: 138 [2020-10-16 12:08:32,246 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 [2020-10-16 12:08:32,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-10-16 12:08:32,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2020-10-16 12:08:32,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-10-16 12:08:32,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 351 transitions. [2020-10-16 12:08:32,260 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 351 transitions. Word has length 9 [2020-10-16 12:08:32,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:08:32,260 INFO L481 AbstractCegarLoop]: Abstraction has 138 states and 351 transitions. [2020-10-16 12:08:32,260 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:08:32,261 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 351 transitions. [2020-10-16 12:08:32,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-16 12:08:32,262 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:08:32,262 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:08:32,262 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 12:08:32,262 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:08:32,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:08:32,263 INFO L82 PathProgramCache]: Analyzing trace with hash -1925064459, now seen corresponding path program 1 times [2020-10-16 12:08:32,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:08:32,263 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725306543] [2020-10-16 12:08:32,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:08:32,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:08:32,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:08:32,311 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725306543] [2020-10-16 12:08:32,311 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:08:32,312 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 12:08:32,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380379572] [2020-10-16 12:08:32,312 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:08:32,313 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:08:32,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:08:32,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:08:32,313 INFO L87 Difference]: Start difference. First operand 138 states and 351 transitions. Second operand 3 states. [2020-10-16 12:08:32,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:08:32,323 INFO L93 Difference]: Finished difference Result 132 states and 332 transitions. [2020-10-16 12:08:32,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:08:32,325 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-16 12:08:32,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:08:32,328 INFO L225 Difference]: With dead ends: 132 [2020-10-16 12:08:32,328 INFO L226 Difference]: Without dead ends: 132 [2020-10-16 12:08:32,328 INFO L677 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 [2020-10-16 12:08:32,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-10-16 12:08:32,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2020-10-16 12:08:32,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-10-16 12:08:32,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 332 transitions. [2020-10-16 12:08:32,346 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 332 transitions. Word has length 10 [2020-10-16 12:08:32,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:08:32,346 INFO L481 AbstractCegarLoop]: Abstraction has 132 states and 332 transitions. [2020-10-16 12:08:32,346 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:08:32,346 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 332 transitions. [2020-10-16 12:08:32,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 12:08:32,348 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:08:32,348 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:08:32,348 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 12:08:32,348 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:08:32,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:08:32,349 INFO L82 PathProgramCache]: Analyzing trace with hash 452543204, now seen corresponding path program 1 times [2020-10-16 12:08:32,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:08:32,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312710483] [2020-10-16 12:08:32,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:08:32,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:08:32,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:08:32,391 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312710483] [2020-10-16 12:08:32,391 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:08:32,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:08:32,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038851550] [2020-10-16 12:08:32,392 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:08:32,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:08:32,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:08:32,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:08:32,393 INFO L87 Difference]: Start difference. First operand 132 states and 332 transitions. Second operand 4 states. [2020-10-16 12:08:32,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:08:32,414 INFO L93 Difference]: Finished difference Result 144 states and 346 transitions. [2020-10-16 12:08:32,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 12:08:32,415 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-16 12:08:32,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:08:32,416 INFO L225 Difference]: With dead ends: 144 [2020-10-16 12:08:32,416 INFO L226 Difference]: Without dead ends: 60 [2020-10-16 12:08:32,417 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 [2020-10-16 12:08:32,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-10-16 12:08:32,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-10-16 12:08:32,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-16 12:08:32,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 129 transitions. [2020-10-16 12:08:32,421 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 129 transitions. Word has length 11 [2020-10-16 12:08:32,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:08:32,422 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 129 transitions. [2020-10-16 12:08:32,422 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:08:32,422 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 129 transitions. [2020-10-16 12:08:32,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 12:08:32,423 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:08:32,423 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:08:32,423 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 12:08:32,423 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:08:32,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:08:32,424 INFO L82 PathProgramCache]: Analyzing trace with hash 1143893480, now seen corresponding path program 1 times [2020-10-16 12:08:32,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:08:32,424 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92797628] [2020-10-16 12:08:32,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:08:32,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:08:32,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:08:32,555 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92797628] [2020-10-16 12:08:32,555 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:08:32,555 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:08:32,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284128595] [2020-10-16 12:08:32,556 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:08:32,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:08:32,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:08:32,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:08:32,557 INFO L87 Difference]: Start difference. First operand 60 states and 129 transitions. Second operand 4 states. [2020-10-16 12:08:32,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:08:32,590 INFO L93 Difference]: Finished difference Result 73 states and 142 transitions. [2020-10-16 12:08:32,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 12:08:32,591 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-16 12:08:32,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:08:32,592 INFO L225 Difference]: With dead ends: 73 [2020-10-16 12:08:32,592 INFO L226 Difference]: Without dead ends: 52 [2020-10-16 12:08:32,592 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 [2020-10-16 12:08:32,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-16 12:08:32,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-10-16 12:08:32,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-16 12:08:32,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 101 transitions. [2020-10-16 12:08:32,596 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 101 transitions. Word has length 12 [2020-10-16 12:08:32,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:08:32,597 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 101 transitions. [2020-10-16 12:08:32,597 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:08:32,597 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 101 transitions. [2020-10-16 12:08:32,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 12:08:32,598 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:08:32,598 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:08:32,598 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 12:08:32,598 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:08:32,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:08:32,599 INFO L82 PathProgramCache]: Analyzing trace with hash -1190230917, now seen corresponding path program 1 times [2020-10-16 12:08:32,599 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:08:32,599 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012993185] [2020-10-16 12:08:32,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:08:32,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:08:32,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:08:32,653 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012993185] [2020-10-16 12:08:32,653 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:08:32,653 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:08:32,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335323488] [2020-10-16 12:08:32,654 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 12:08:32,654 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:08:32,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 12:08:32,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:08:32,655 INFO L87 Difference]: Start difference. First operand 52 states and 101 transitions. Second operand 5 states. [2020-10-16 12:08:32,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:08:32,706 INFO L93 Difference]: Finished difference Result 53 states and 91 transitions. [2020-10-16 12:08:32,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 12:08:32,707 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-16 12:08:32,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:08:32,708 INFO L225 Difference]: With dead ends: 53 [2020-10-16 12:08:32,708 INFO L226 Difference]: Without dead ends: 38 [2020-10-16 12:08:32,708 INFO L677 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 [2020-10-16 12:08:32,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-16 12:08:32,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-10-16 12:08:32,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-16 12:08:32,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 61 transitions. [2020-10-16 12:08:32,712 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 61 transitions. Word has length 13 [2020-10-16 12:08:32,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:08:32,713 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 61 transitions. [2020-10-16 12:08:32,713 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 12:08:32,714 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 61 transitions. [2020-10-16 12:08:32,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-16 12:08:32,715 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:08:32,715 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:08:32,715 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 12:08:32,715 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:08:32,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:08:32,716 INFO L82 PathProgramCache]: Analyzing trace with hash 1757733921, now seen corresponding path program 1 times [2020-10-16 12:08:32,716 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:08:32,716 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906508999] [2020-10-16 12:08:32,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:08:32,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:08:32,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:08:32,821 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906508999] [2020-10-16 12:08:32,821 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:08:32,821 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 12:08:32,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915412360] [2020-10-16 12:08:32,822 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 12:08:32,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:08:32,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 12:08:32,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-16 12:08:32,823 INFO L87 Difference]: Start difference. First operand 38 states and 61 transitions. Second operand 6 states. [2020-10-16 12:08:32,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:08:32,872 INFO L93 Difference]: Finished difference Result 35 states and 53 transitions. [2020-10-16 12:08:32,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 12:08:32,873 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-16 12:08:32,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:08:32,874 INFO L225 Difference]: With dead ends: 35 [2020-10-16 12:08:32,874 INFO L226 Difference]: Without dead ends: 29 [2020-10-16 12:08:32,874 INFO L677 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 [2020-10-16 12:08:32,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-16 12:08:32,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-10-16 12:08:32,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-16 12:08:32,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 43 transitions. [2020-10-16 12:08:32,877 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 43 transitions. Word has length 14 [2020-10-16 12:08:32,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:08:32,877 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 43 transitions. [2020-10-16 12:08:32,877 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 12:08:32,877 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 43 transitions. [2020-10-16 12:08:32,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-16 12:08:32,878 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:08:32,878 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:08:32,878 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 12:08:32,879 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:08:32,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:08:32,879 INFO L82 PathProgramCache]: Analyzing trace with hash 1250665313, now seen corresponding path program 1 times [2020-10-16 12:08:32,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:08:32,880 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422052857] [2020-10-16 12:08:32,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:08:32,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:08:32,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:08:32,922 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422052857] [2020-10-16 12:08:32,923 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:08:32,923 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:08:32,923 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972118247] [2020-10-16 12:08:32,924 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:08:32,924 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:08:32,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:08:32,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:08:32,925 INFO L87 Difference]: Start difference. First operand 29 states and 43 transitions. Second operand 3 states. [2020-10-16 12:08:32,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:08:32,930 INFO L93 Difference]: Finished difference Result 28 states and 42 transitions. [2020-10-16 12:08:32,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:08:32,931 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-10-16 12:08:32,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:08:32,931 INFO L225 Difference]: With dead ends: 28 [2020-10-16 12:08:32,931 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 12:08:32,932 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:08:32,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 12:08:32,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 12:08:32,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 12:08:32,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 12:08:32,932 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-10-16 12:08:32,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:08:32,933 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 12:08:32,933 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:08:32,933 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 12:08:32,933 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 12:08:32,933 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 12:08:32,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 12:08:32 BasicIcfg [2020-10-16 12:08:32,937 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 12:08:32,940 INFO L168 Benchmark]: Toolchain (without parser) took 4070.01 ms. Allocated memory was 140.0 MB in the beginning and 245.9 MB in the end (delta: 105.9 MB). Free memory was 101.3 MB in the beginning and 210.5 MB in the end (delta: -109.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 12:08:32,941 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-16 12:08:32,942 INFO L168 Benchmark]: CACSL2BoogieTranslator took 685.06 ms. Allocated memory was 140.0 MB in the beginning and 204.5 MB in the end (delta: 64.5 MB). Free memory was 101.1 MB in the beginning and 162.5 MB in the end (delta: -61.3 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. [2020-10-16 12:08:32,943 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.47 ms. Allocated memory is still 204.5 MB. Free memory was 162.5 MB in the beginning and 159.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-10-16 12:08:32,944 INFO L168 Benchmark]: Boogie Preprocessor took 28.84 ms. Allocated memory is still 204.5 MB. Free memory was 159.9 MB in the beginning and 158.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-16 12:08:32,945 INFO L168 Benchmark]: RCFGBuilder took 428.07 ms. Allocated memory is still 204.5 MB. Free memory was 158.6 MB in the beginning and 136.4 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2020-10-16 12:08:32,946 INFO L168 Benchmark]: TraceAbstraction took 2871.96 ms. Allocated memory was 204.5 MB in the beginning and 245.9 MB in the end (delta: 41.4 MB). Free memory was 135.7 MB in the beginning and 210.5 MB in the end (delta: -74.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 12:08:32,950 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 685.06 ms. Allocated memory was 140.0 MB in the beginning and 204.5 MB in the end (delta: 64.5 MB). Free memory was 101.1 MB in the beginning and 162.5 MB in the end (delta: -61.3 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.47 ms. Allocated memory is still 204.5 MB. Free memory was 162.5 MB in the beginning and 159.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.84 ms. Allocated memory is still 204.5 MB. Free memory was 159.9 MB in the beginning and 158.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 428.07 ms. Allocated memory is still 204.5 MB. Free memory was 158.6 MB in the beginning and 136.4 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2871.96 ms. Allocated memory was 204.5 MB in the beginning and 245.9 MB in the end (delta: 41.4 MB). Free memory was 135.7 MB in the beginning and 210.5 MB in the end (delta: -74.8 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 618 VarBasedMoverChecksPositive, 20 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 31 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.3s, 76 PlacesBefore, 30 PlacesAfterwards, 68 TransitionsBefore, 20 TransitionsAfterwards, 1186 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 56 TotalNumberOfCompositions, 2093 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, 67 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.7s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 129 SDtfs, 106 SDslu, 133 SDs, 0 SdLazy, 99 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=234occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 93 NumberOfCodeBlocks, 93 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 85 ConstructedInterpolants, 0 QuantifiedInterpolants, 2919 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...