/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe005_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-21 22:00:18,484 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-21 22:00:18,486 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-21 22:00:18,512 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-21 22:00:18,512 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-21 22:00:18,514 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-21 22:00:18,515 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-21 22:00:18,517 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-21 22:00:18,523 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-21 22:00:18,524 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-21 22:00:18,525 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-21 22:00:18,526 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-21 22:00:18,526 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-21 22:00:18,527 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-21 22:00:18,532 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-21 22:00:18,533 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-21 22:00:18,534 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-21 22:00:18,535 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-21 22:00:18,539 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-21 22:00:18,542 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-21 22:00:18,545 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-21 22:00:18,546 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-21 22:00:18,547 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-21 22:00:18,549 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-21 22:00:18,556 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-21 22:00:18,557 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-21 22:00:18,557 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-21 22:00:18,559 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-21 22:00:18,559 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-21 22:00:18,563 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-21 22:00:18,563 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-21 22:00:18,564 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-21 22:00:18,565 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-21 22:00:18,566 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-21 22:00:18,575 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-21 22:00:18,576 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-21 22:00:18,576 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-21 22:00:18,577 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-21 22:00:18,577 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-21 22:00:18,580 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-21 22:00:18,581 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-21 22:00:18,582 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-21 22:00:18,631 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-21 22:00:18,631 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-21 22:00:18,632 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-21 22:00:18,632 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-21 22:00:18,633 INFO L138 SettingsManager]: * Use SBE=true [2020-10-21 22:00:18,633 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-21 22:00:18,633 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-21 22:00:18,633 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-21 22:00:18,634 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-21 22:00:18,634 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-21 22:00:18,634 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-21 22:00:18,635 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-21 22:00:18,635 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-21 22:00:18,635 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-21 22:00:18,635 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-21 22:00:18,635 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-21 22:00:18,635 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-21 22:00:18,636 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-21 22:00:18,636 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-21 22:00:18,636 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-21 22:00:18,636 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-21 22:00:18,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 22:00:18,637 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-21 22:00:18,637 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-21 22:00:18,637 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-21 22:00:18,637 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-21 22:00:18,637 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-21 22:00:18,638 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-21 22:00:18,639 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-21 22:00:18,639 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-21 22:00:18,952 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-21 22:00:18,973 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-21 22:00:18,977 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-21 22:00:18,979 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-21 22:00:18,979 INFO L275 PluginConnector]: CDTParser initialized [2020-10-21 22:00:18,980 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe005_tso.oepc.i [2020-10-21 22:00:19,058 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec57ed947/2f3ff3b2c22544a9aef005598bd1a7f2/FLAGf8541e417 [2020-10-21 22:00:19,602 INFO L306 CDTParser]: Found 1 translation units. [2020-10-21 22:00:19,603 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe005_tso.oepc.i [2020-10-21 22:00:19,618 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec57ed947/2f3ff3b2c22544a9aef005598bd1a7f2/FLAGf8541e417 [2020-10-21 22:00:19,887 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec57ed947/2f3ff3b2c22544a9aef005598bd1a7f2 [2020-10-21 22:00:19,896 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-21 22:00:19,904 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-21 22:00:19,906 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-21 22:00:19,906 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-21 22:00:19,911 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-21 22:00:19,912 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 10:00:19" (1/1) ... [2020-10-21 22:00:19,916 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3455e5a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:00:19, skipping insertion in model container [2020-10-21 22:00:19,917 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 10:00:19" (1/1) ... [2020-10-21 22:00:19,926 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-21 22:00:19,974 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-21 22:00:20,443 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 22:00:20,455 INFO L203 MainTranslator]: Completed pre-run [2020-10-21 22:00:20,503 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 22:00:20,602 INFO L208 MainTranslator]: Completed translation [2020-10-21 22:00:20,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:00:20 WrapperNode [2020-10-21 22:00:20,603 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-21 22:00:20,604 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-21 22:00:20,604 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-21 22:00:20,604 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-21 22:00:20,614 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:00:20" (1/1) ... [2020-10-21 22:00:20,630 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:00:20" (1/1) ... [2020-10-21 22:00:20,656 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-21 22:00:20,656 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-21 22:00:20,656 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-21 22:00:20,656 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-21 22:00:20,667 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:00:20" (1/1) ... [2020-10-21 22:00:20,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:00:20" (1/1) ... [2020-10-21 22:00:20,671 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:00:20" (1/1) ... [2020-10-21 22:00:20,671 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:00:20" (1/1) ... [2020-10-21 22:00:20,678 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:00:20" (1/1) ... [2020-10-21 22:00:20,680 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:00:20" (1/1) ... [2020-10-21 22:00:20,682 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:00:20" (1/1) ... [2020-10-21 22:00:20,686 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-21 22:00:20,686 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-21 22:00:20,687 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-21 22:00:20,687 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-21 22:00:20,688 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:00:20" (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 22:00:20,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-21 22:00:20,760 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-21 22:00:20,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-21 22:00:20,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-21 22:00:20,760 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-21 22:00:20,761 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-21 22:00:20,761 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-21 22:00:20,761 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-21 22:00:20,761 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-21 22:00:20,761 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-21 22:00:20,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-21 22:00:20,762 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-21 22:00:20,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-21 22:00:20,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-21 22:00:20,764 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 22:00:21,198 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-21 22:00:21,199 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-21 22:00:21,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:00:21 BoogieIcfgContainer [2020-10-21 22:00:21,202 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-21 22:00:21,203 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-21 22:00:21,204 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-21 22:00:21,208 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-21 22:00:21,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 10:00:19" (1/3) ... [2020-10-21 22:00:21,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3199d1cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 10:00:21, skipping insertion in model container [2020-10-21 22:00:21,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:00:20" (2/3) ... [2020-10-21 22:00:21,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3199d1cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 10:00:21, skipping insertion in model container [2020-10-21 22:00:21,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:00:21" (3/3) ... [2020-10-21 22:00:21,212 INFO L111 eAbstractionObserver]: Analyzing ICFG safe005_tso.oepc.i [2020-10-21 22:00:21,225 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-21 22:00:21,226 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-21 22:00:21,235 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-21 22:00:21,236 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-21 22:00:21,270 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:00:21,270 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:00:21,270 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:00:21,271 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:00:21,272 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:00:21,272 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:00:21,273 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:00:21,273 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:00:21,273 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:00:21,273 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:00:21,274 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:00:21,274 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:00:21,275 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:00:21,275 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:00:21,275 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:00:21,276 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:00:21,276 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:00:21,276 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:00:21,280 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:00:21,281 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:00:21,281 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:00:21,281 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:00:21,288 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:00:21,289 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:00:21,289 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:00:21,289 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:00:21,292 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:00:21,292 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:00:21,292 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:00:21,293 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:00:21,295 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-21 22:00:21,311 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-21 22:00:21,334 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 22:00:21,334 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 22:00:21,334 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-21 22:00:21,335 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 22:00:21,335 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 22:00:21,335 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 22:00:21,335 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 22:00:21,335 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 22:00:21,351 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-21 22:00:21,354 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 79 transitions, 173 flow [2020-10-21 22:00:21,357 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 79 transitions, 173 flow [2020-10-21 22:00:21,359 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 86 places, 79 transitions, 173 flow [2020-10-21 22:00:21,410 INFO L129 PetriNetUnfolder]: 3/76 cut-off events. [2020-10-21 22:00:21,411 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-21 22:00:21,418 INFO L80 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 76 events. 3/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 62 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-10-21 22:00:21,422 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-10-21 22:00:23,430 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2020-10-21 22:00:23,651 INFO L131 LiptonReduction]: Checked pairs total: 2926 [2020-10-21 22:00:23,652 INFO L133 LiptonReduction]: Total number of compositions: 72 [2020-10-21 22:00:23,659 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-10-21 22:00:23,686 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-21 22:00:23,689 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-21 22:00:23,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-21 22:00:23,697 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:00:23,699 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:00:23,699 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:00:23,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:00:23,705 INFO L82 PathProgramCache]: Analyzing trace with hash -1098074663, now seen corresponding path program 1 times [2020-10-21 22:00:23,716 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:00:23,716 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519639156] [2020-10-21 22:00:23,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:00:23,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:00:23,947 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 22:00:23,948 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519639156] [2020-10-21 22:00:23,950 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:00:23,950 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-21 22:00:23,951 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096158841] [2020-10-21 22:00:23,956 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:00:23,957 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:00:23,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:00:23,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:00:23,974 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-21 22:00:24,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:00:24,023 INFO L93 Difference]: Finished difference Result 266 states and 752 transitions. [2020-10-21 22:00:24,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:00:24,029 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-21 22:00:24,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:00:24,063 INFO L225 Difference]: With dead ends: 266 [2020-10-21 22:00:24,063 INFO L226 Difference]: Without dead ends: 202 [2020-10-21 22:00:24,065 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 [2020-10-21 22:00:24,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-10-21 22:00:24,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-10-21 22:00:24,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-10-21 22:00:24,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 544 transitions. [2020-10-21 22:00:24,167 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 544 transitions. Word has length 8 [2020-10-21 22:00:24,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:00:24,169 INFO L481 AbstractCegarLoop]: Abstraction has 202 states and 544 transitions. [2020-10-21 22:00:24,169 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:00:24,169 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-10-21 22:00:24,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-21 22:00:24,171 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:00:24,171 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:00:24,172 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-21 22:00:24,172 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:00:24,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:00:24,172 INFO L82 PathProgramCache]: Analyzing trace with hash 1311186850, now seen corresponding path program 1 times [2020-10-21 22:00:24,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:00:24,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43441248] [2020-10-21 22:00:24,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:00:24,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:00:24,307 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 22:00:24,308 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43441248] [2020-10-21 22:00:24,308 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:00:24,308 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:00:24,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919288676] [2020-10-21 22:00:24,310 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 22:00:24,310 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:00:24,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 22:00:24,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 22:00:24,311 INFO L87 Difference]: Start difference. First operand 202 states and 544 transitions. Second operand 4 states. [2020-10-21 22:00:24,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:00:24,343 INFO L93 Difference]: Finished difference Result 254 states and 666 transitions. [2020-10-21 22:00:24,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 22:00:24,344 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-21 22:00:24,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:00:24,346 INFO L225 Difference]: With dead ends: 254 [2020-10-21 22:00:24,347 INFO L226 Difference]: Without dead ends: 190 [2020-10-21 22:00:24,347 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 22:00:24,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2020-10-21 22:00:24,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2020-10-21 22:00:24,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2020-10-21 22:00:24,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 502 transitions. [2020-10-21 22:00:24,363 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 502 transitions. Word has length 10 [2020-10-21 22:00:24,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:00:24,363 INFO L481 AbstractCegarLoop]: Abstraction has 190 states and 502 transitions. [2020-10-21 22:00:24,364 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 22:00:24,364 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 502 transitions. [2020-10-21 22:00:24,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-21 22:00:24,365 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:00:24,366 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:00:24,366 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-21 22:00:24,366 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:00:24,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:00:24,367 INFO L82 PathProgramCache]: Analyzing trace with hash -1456303369, now seen corresponding path program 1 times [2020-10-21 22:00:24,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:00:24,367 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121564370] [2020-10-21 22:00:24,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:00:24,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:00:24,432 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 22:00:24,433 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121564370] [2020-10-21 22:00:24,433 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:00:24,433 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 22:00:24,433 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779860995] [2020-10-21 22:00:24,434 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 22:00:24,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:00:24,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 22:00:24,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 22:00:24,435 INFO L87 Difference]: Start difference. First operand 190 states and 502 transitions. Second operand 4 states. [2020-10-21 22:00:24,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:00:24,514 INFO L93 Difference]: Finished difference Result 286 states and 722 transitions. [2020-10-21 22:00:24,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 22:00:24,517 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-21 22:00:24,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:00:24,520 INFO L225 Difference]: With dead ends: 286 [2020-10-21 22:00:24,520 INFO L226 Difference]: Without dead ends: 178 [2020-10-21 22:00:24,520 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:00:24,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-10-21 22:00:24,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 154. [2020-10-21 22:00:24,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-10-21 22:00:24,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 376 transitions. [2020-10-21 22:00:24,536 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 376 transitions. Word has length 11 [2020-10-21 22:00:24,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:00:24,537 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 376 transitions. [2020-10-21 22:00:24,537 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 22:00:24,537 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 376 transitions. [2020-10-21 22:00:24,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-21 22:00:24,539 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:00:24,539 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:00:24,539 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-21 22:00:24,539 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:00:24,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:00:24,540 INFO L82 PathProgramCache]: Analyzing trace with hash -337791903, now seen corresponding path program 1 times [2020-10-21 22:00:24,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:00:24,540 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985085378] [2020-10-21 22:00:24,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:00:24,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:00:24,579 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 22:00:24,580 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985085378] [2020-10-21 22:00:24,580 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:00:24,580 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:00:24,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213075283] [2020-10-21 22:00:24,581 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:00:24,581 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:00:24,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:00:24,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:00:24,582 INFO L87 Difference]: Start difference. First operand 154 states and 376 transitions. Second operand 3 states. [2020-10-21 22:00:24,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:00:24,596 INFO L93 Difference]: Finished difference Result 174 states and 416 transitions. [2020-10-21 22:00:24,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:00:24,597 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-21 22:00:24,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:00:24,598 INFO L225 Difference]: With dead ends: 174 [2020-10-21 22:00:24,598 INFO L226 Difference]: Without dead ends: 72 [2020-10-21 22:00:24,599 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 [2020-10-21 22:00:24,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-10-21 22:00:24,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2020-10-21 22:00:24,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-10-21 22:00:24,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 154 transitions. [2020-10-21 22:00:24,605 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 154 transitions. Word has length 12 [2020-10-21 22:00:24,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:00:24,605 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 154 transitions. [2020-10-21 22:00:24,605 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:00:24,605 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 154 transitions. [2020-10-21 22:00:24,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-21 22:00:24,606 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:00:24,606 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:00:24,607 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-21 22:00:24,607 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:00:24,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:00:24,607 INFO L82 PathProgramCache]: Analyzing trace with hash -1881630110, now seen corresponding path program 1 times [2020-10-21 22:00:24,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:00:24,608 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333042081] [2020-10-21 22:00:24,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:00:24,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:00:24,698 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 22:00:24,701 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333042081] [2020-10-21 22:00:24,701 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:00:24,701 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:00:24,702 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087280928] [2020-10-21 22:00:24,702 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 22:00:24,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:00:24,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 22:00:24,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 22:00:24,703 INFO L87 Difference]: Start difference. First operand 72 states and 154 transitions. Second operand 4 states. [2020-10-21 22:00:24,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:00:24,754 INFO L93 Difference]: Finished difference Result 85 states and 167 transitions. [2020-10-21 22:00:24,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 22:00:24,754 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-21 22:00:24,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:00:24,755 INFO L225 Difference]: With dead ends: 85 [2020-10-21 22:00:24,755 INFO L226 Difference]: Without dead ends: 61 [2020-10-21 22:00:24,756 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 22:00:24,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-10-21 22:00:24,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2020-10-21 22:00:24,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-10-21 22:00:24,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 118 transitions. [2020-10-21 22:00:24,767 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 118 transitions. Word has length 13 [2020-10-21 22:00:24,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:00:24,768 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 118 transitions. [2020-10-21 22:00:24,768 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 22:00:24,768 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 118 transitions. [2020-10-21 22:00:24,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-21 22:00:24,769 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:00:24,769 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:00:24,769 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-21 22:00:24,769 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:00:24,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:00:24,770 INFO L82 PathProgramCache]: Analyzing trace with hash 1813720345, now seen corresponding path program 1 times [2020-10-21 22:00:24,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:00:24,770 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846180683] [2020-10-21 22:00:24,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:00:24,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:00:24,872 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 22:00:24,873 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846180683] [2020-10-21 22:00:24,873 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:00:24,873 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 22:00:24,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432066807] [2020-10-21 22:00:24,874 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 22:00:24,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:00:24,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 22:00:24,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:00:24,875 INFO L87 Difference]: Start difference. First operand 61 states and 118 transitions. Second operand 5 states. [2020-10-21 22:00:24,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:00:24,925 INFO L93 Difference]: Finished difference Result 62 states and 108 transitions. [2020-10-21 22:00:24,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-21 22:00:24,925 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-21 22:00:24,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:00:24,927 INFO L225 Difference]: With dead ends: 62 [2020-10-21 22:00:24,927 INFO L226 Difference]: Without dead ends: 47 [2020-10-21 22:00:24,927 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 [2020-10-21 22:00:24,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-10-21 22:00:24,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-10-21 22:00:24,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-21 22:00:24,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 78 transitions. [2020-10-21 22:00:24,931 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 78 transitions. Word has length 14 [2020-10-21 22:00:24,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:00:24,931 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 78 transitions. [2020-10-21 22:00:24,932 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 22:00:24,932 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 78 transitions. [2020-10-21 22:00:24,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-21 22:00:24,933 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:00:24,933 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:00:24,933 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-21 22:00:24,933 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:00:24,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:00:24,934 INFO L82 PathProgramCache]: Analyzing trace with hash 391097630, now seen corresponding path program 1 times [2020-10-21 22:00:24,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:00:24,934 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108867509] [2020-10-21 22:00:24,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:00:24,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:00:24,990 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 22:00:24,991 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108867509] [2020-10-21 22:00:24,992 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:00:24,992 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-21 22:00:24,992 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204606780] [2020-10-21 22:00:24,993 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-21 22:00:24,993 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:00:24,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-21 22:00:24,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-21 22:00:24,994 INFO L87 Difference]: Start difference. First operand 47 states and 78 transitions. Second operand 6 states. [2020-10-21 22:00:25,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:00:25,075 INFO L93 Difference]: Finished difference Result 44 states and 70 transitions. [2020-10-21 22:00:25,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-21 22:00:25,078 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-21 22:00:25,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:00:25,079 INFO L225 Difference]: With dead ends: 44 [2020-10-21 22:00:25,079 INFO L226 Difference]: Without dead ends: 38 [2020-10-21 22:00:25,079 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 [2020-10-21 22:00:25,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-21 22:00:25,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-10-21 22:00:25,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-21 22:00:25,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 60 transitions. [2020-10-21 22:00:25,082 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 60 transitions. Word has length 15 [2020-10-21 22:00:25,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:00:25,082 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 60 transitions. [2020-10-21 22:00:25,082 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-21 22:00:25,082 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 60 transitions. [2020-10-21 22:00:25,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-21 22:00:25,083 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:00:25,083 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 22:00:25,083 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-21 22:00:25,084 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:00:25,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:00:25,084 INFO L82 PathProgramCache]: Analyzing trace with hash -2114303388, now seen corresponding path program 1 times [2020-10-21 22:00:25,084 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:00:25,084 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247785414] [2020-10-21 22:00:25,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:00:25,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:00:25,125 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 22:00:25,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247785414] [2020-10-21 22:00:25,126 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:00:25,126 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 22:00:25,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038363427] [2020-10-21 22:00:25,126 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 22:00:25,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:00:25,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 22:00:25,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 22:00:25,127 INFO L87 Difference]: Start difference. First operand 38 states and 60 transitions. Second operand 4 states. [2020-10-21 22:00:25,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:00:25,138 INFO L93 Difference]: Finished difference Result 37 states and 59 transitions. [2020-10-21 22:00:25,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 22:00:25,138 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-21 22:00:25,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:00:25,139 INFO L225 Difference]: With dead ends: 37 [2020-10-21 22:00:25,139 INFO L226 Difference]: Without dead ends: 0 [2020-10-21 22:00:25,139 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:00:25,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-21 22:00:25,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-21 22:00:25,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-21 22:00:25,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-21 22:00:25,140 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-21 22:00:25,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:00:25,140 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-21 22:00:25,140 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 22:00:25,141 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-21 22:00:25,141 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-21 22:00:25,141 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-21 22:00:25,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 10:00:25 BasicIcfg [2020-10-21 22:00:25,145 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-21 22:00:25,147 INFO L168 Benchmark]: Toolchain (without parser) took 5248.81 ms. Allocated memory was 140.0 MB in the beginning and 284.7 MB in the end (delta: 144.7 MB). Free memory was 101.9 MB in the beginning and 239.6 MB in the end (delta: -137.7 MB). Peak memory consumption was 7.0 MB. Max. memory is 7.1 GB. [2020-10-21 22:00:25,148 INFO L168 Benchmark]: CDTParser took 4.28 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.1 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-10-21 22:00:25,149 INFO L168 Benchmark]: CACSL2BoogieTranslator took 697.10 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 100.7 MB in the beginning and 159.0 MB in the end (delta: -58.3 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. [2020-10-21 22:00:25,150 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.34 ms. Allocated memory is still 203.4 MB. Free memory was 159.0 MB in the beginning and 157.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-21 22:00:25,151 INFO L168 Benchmark]: Boogie Preprocessor took 29.90 ms. Allocated memory is still 203.4 MB. Free memory was 157.1 MB in the beginning and 155.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-21 22:00:25,151 INFO L168 Benchmark]: RCFGBuilder took 515.57 ms. Allocated memory is still 203.4 MB. Free memory was 155.0 MB in the beginning and 131.0 MB in the end (delta: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. [2020-10-21 22:00:25,152 INFO L168 Benchmark]: TraceAbstraction took 3941.62 ms. Allocated memory was 203.4 MB in the beginning and 284.7 MB in the end (delta: 81.3 MB). Free memory was 131.0 MB in the beginning and 239.6 MB in the end (delta: -108.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-21 22:00:25,156 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 4.28 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.1 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 697.10 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 100.7 MB in the beginning and 159.0 MB in the end (delta: -58.3 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 52.34 ms. Allocated memory is still 203.4 MB. Free memory was 159.0 MB in the beginning and 157.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.90 ms. Allocated memory is still 203.4 MB. Free memory was 157.1 MB in the beginning and 155.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 515.57 ms. Allocated memory is still 203.4 MB. Free memory was 155.0 MB in the beginning and 131.0 MB in the end (delta: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3941.62 ms. Allocated memory was 203.4 MB in the beginning and 284.7 MB in the end (delta: 81.3 MB). Free memory was 131.0 MB in the beginning and 239.6 MB in the end (delta: -108.6 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 1009 VarBasedMoverChecksPositive, 52 VarBasedMoverChecksNegative, 13 SemBasedMoverChecksPositive, 39 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 75 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.2s, 86 PlacesBefore, 31 PlacesAfterwards, 79 TransitionsBefore, 22 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 72 TotalNumberOfCompositions, 2926 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.8s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, HoareTripleCheckerStatistics: 156 SDtfs, 122 SDslu, 177 SDs, 0 SdLazy, 115 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 24 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 100 NumberOfCodeBlocks, 100 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 92 ConstructedInterpolants, 0 QuantifiedInterpolants, 3166 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...