/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe024_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 12:50:30,589 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 12:50:30,594 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 12:50:30,660 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 12:50:30,660 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 12:50:30,665 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 12:50:30,669 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 12:50:30,678 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 12:50:30,682 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 12:50:30,690 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 12:50:30,700 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 12:50:30,702 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 12:50:30,703 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 12:50:30,707 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 12:50:30,709 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 12:50:30,712 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 12:50:30,713 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 12:50:30,718 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 12:50:30,726 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 12:50:30,729 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 12:50:30,734 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 12:50:30,737 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 12:50:30,738 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 12:50:30,742 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 12:50:30,752 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-09 12:50:30,763 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 12:50:30,764 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 12:50:30,766 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 12:50:30,768 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 12:50:30,769 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 12:50:30,769 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 12:50:30,770 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 12:50:30,770 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 12:50:30,770 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 12:50:30,771 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 12:50:30,772 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 12:50:30,773 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 [2020-11-09 12:50:30,829 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 12:50:30,830 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 12:50:30,835 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 12:50:30,835 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 12:50:30,835 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 12:50:30,836 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 12:50:30,836 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 12:50:30,836 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 12:50:30,836 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 12:50:30,837 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 12:50:30,838 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 12:50:30,838 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 12:50:30,838 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 12:50:30,839 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 12:50:30,839 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 12:50:30,839 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 12:50:30,839 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 12:50:30,840 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 12:50:30,840 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 12:50:30,840 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 12:50:30,840 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 12:50:30,841 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 12:50:30,841 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 12:50:30,841 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-09 12:50:30,841 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 12:50:30,842 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 12:50:30,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 12:50:30,842 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 12:50:30,842 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-09 12:50:30,842 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 12:50:31,306 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 12:50:31,345 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 12:50:31,349 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 12:50:31,350 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 12:50:31,351 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 12:50:31,352 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe024_tso.opt.i [2020-11-09 12:50:31,426 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f95a1530/0387d59a4a1848bd9ec30e04d9d5075f/FLAGf5a626ca4 [2020-11-09 12:50:32,336 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 12:50:32,336 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe024_tso.opt.i [2020-11-09 12:50:32,360 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f95a1530/0387d59a4a1848bd9ec30e04d9d5075f/FLAGf5a626ca4 [2020-11-09 12:50:32,503 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f95a1530/0387d59a4a1848bd9ec30e04d9d5075f [2020-11-09 12:50:32,508 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 12:50:32,516 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 12:50:32,519 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 12:50:32,520 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 12:50:32,524 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 12:50:32,525 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:50:32" (1/1) ... [2020-11-09 12:50:32,530 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dc85fdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:50:32, skipping insertion in model container [2020-11-09 12:50:32,530 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:50:32" (1/1) ... [2020-11-09 12:50:32,539 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 12:50:32,604 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 12:50:33,029 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 12:50:33,049 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 12:50:33,161 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 12:50:33,315 INFO L208 MainTranslator]: Completed translation [2020-11-09 12:50:33,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:50:33 WrapperNode [2020-11-09 12:50:33,317 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 12:50:33,319 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 12:50:33,320 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 12:50:33,320 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 12:50:33,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:50:33" (1/1) ... [2020-11-09 12:50:33,380 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:50:33" (1/1) ... [2020-11-09 12:50:33,418 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 12:50:33,420 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 12:50:33,421 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 12:50:33,422 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 12:50:33,433 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:50:33" (1/1) ... [2020-11-09 12:50:33,433 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:50:33" (1/1) ... [2020-11-09 12:50:33,448 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:50:33" (1/1) ... [2020-11-09 12:50:33,448 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:50:33" (1/1) ... [2020-11-09 12:50:33,469 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:50:33" (1/1) ... [2020-11-09 12:50:33,473 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:50:33" (1/1) ... [2020-11-09 12:50:33,475 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:50:33" (1/1) ... [2020-11-09 12:50:33,486 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 12:50:33,490 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 12:50:33,490 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 12:50:33,490 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 12:50:33,492 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:50:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 12:50:33,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 12:50:33,595 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 12:50:33,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 12:50:33,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 12:50:33,596 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 12:50:33,596 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 12:50:33,597 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 12:50:33,597 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 12:50:33,598 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-09 12:50:33,599 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-09 12:50:33,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 12:50:33,599 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 12:50:33,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 12:50:33,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 12:50:33,602 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-09 12:50:34,201 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 12:50:34,202 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 12:50:34,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:50:34 BoogieIcfgContainer [2020-11-09 12:50:34,204 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 12:50:34,206 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 12:50:34,206 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 12:50:34,210 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 12:50:34,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 12:50:32" (1/3) ... [2020-11-09 12:50:34,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f00e112 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 12:50:34, skipping insertion in model container [2020-11-09 12:50:34,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:50:33" (2/3) ... [2020-11-09 12:50:34,212 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f00e112 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 12:50:34, skipping insertion in model container [2020-11-09 12:50:34,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:50:34" (3/3) ... [2020-11-09 12:50:34,214 INFO L111 eAbstractionObserver]: Analyzing ICFG safe024_tso.opt.i [2020-11-09 12:50:34,231 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 12:50:34,232 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-09 12:50:34,236 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 12:50:34,238 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 12:50:34,285 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:50:34,285 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:50:34,285 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:50:34,285 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:50:34,286 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:50:34,286 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:50:34,286 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:50:34,286 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:50:34,287 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:50:34,287 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:50:34,287 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:50:34,287 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:50:34,288 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:50:34,288 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:50:34,289 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:50:34,289 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:50:34,289 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:50:34,289 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:50:34,289 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:50:34,290 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:50:34,290 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:50:34,290 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:50:34,290 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:50:34,291 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:50:34,293 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:50:34,294 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:50:34,294 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:50:34,294 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:50:34,295 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:50:34,295 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:50:34,299 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:50:34,299 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:50:34,303 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:50:34,304 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:50:34,304 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:50:34,304 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:50:34,307 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:50:34,308 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:50:34,308 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:50:34,308 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:50:34,315 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:50:34,315 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:50:34,315 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:50:34,316 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:50:34,319 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:50:34,319 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:50:34,319 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:50:34,319 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:50:34,322 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 12:50:34,335 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-09 12:50:34,359 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 12:50:34,360 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 12:50:34,360 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-09 12:50:34,360 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-09 12:50:34,360 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 12:50:34,360 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 12:50:34,360 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 12:50:34,361 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 12:50:34,374 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-09 12:50:34,377 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 80 transitions, 175 flow [2020-11-09 12:50:34,380 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 80 transitions, 175 flow [2020-11-09 12:50:34,383 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 87 places, 80 transitions, 175 flow [2020-11-09 12:50:34,431 INFO L129 PetriNetUnfolder]: 3/77 cut-off events. [2020-11-09 12:50:34,432 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 12:50:34,436 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 77 events. 3/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 63 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-11-09 12:50:34,440 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-11-09 12:50:36,064 WARN L194 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-11-09 12:50:36,922 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-11-09 12:50:37,101 WARN L194 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-11-09 12:50:38,127 WARN L194 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2020-11-09 12:50:38,830 WARN L194 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-11-09 12:50:38,943 WARN L194 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-11-09 12:50:39,239 WARN L194 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-11-09 12:50:39,358 WARN L194 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-11-09 12:50:39,505 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2020-11-09 12:50:39,675 WARN L194 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 42 [2020-11-09 12:50:39,774 INFO L131 LiptonReduction]: Checked pairs total: 3412 [2020-11-09 12:50:39,774 INFO L133 LiptonReduction]: Total number of compositions: 77 [2020-11-09 12:50:39,785 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-11-09 12:50:39,812 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-11-09 12:50:39,814 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-11-09 12:50:39,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-09 12:50:39,821 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:50:39,822 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:50:39,823 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:50:39,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:50:39,829 INFO L82 PathProgramCache]: Analyzing trace with hash 1698580066, now seen corresponding path program 1 times [2020-11-09 12:50:39,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:50:39,840 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555562865] [2020-11-09 12:50:39,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:50:39,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:50:40,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:50:40,122 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555562865] [2020-11-09 12:50:40,122 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:50:40,123 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 12:50:40,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609243586] [2020-11-09 12:50:40,130 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 12:50:40,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:50:40,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 12:50:40,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 12:50:40,157 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-11-09 12:50:40,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:50:40,235 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-11-09 12:50:40,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 12:50:40,237 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-11-09 12:50:40,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:50:40,253 INFO L225 Difference]: With dead ends: 282 [2020-11-09 12:50:40,254 INFO L226 Difference]: Without dead ends: 218 [2020-11-09 12:50:40,255 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 [2020-11-09 12:50:40,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-11-09 12:50:40,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-11-09 12:50:40,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-11-09 12:50:40,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-11-09 12:50:40,327 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-11-09 12:50:40,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:50:40,329 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-11-09 12:50:40,329 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 12:50:40,329 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-11-09 12:50:40,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-09 12:50:40,331 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:50:40,331 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:50:40,331 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 12:50:40,331 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:50:40,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:50:40,332 INFO L82 PathProgramCache]: Analyzing trace with hash 1116373545, now seen corresponding path program 1 times [2020-11-09 12:50:40,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:50:40,333 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700974900] [2020-11-09 12:50:40,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:50:40,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:50:40,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:50:40,418 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700974900] [2020-11-09 12:50:40,418 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:50:40,418 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 12:50:40,418 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061602009] [2020-11-09 12:50:40,420 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 12:50:40,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:50:40,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 12:50:40,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 12:50:40,421 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 4 states. [2020-11-09 12:50:40,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:50:40,452 INFO L93 Difference]: Finished difference Result 242 states and 634 transitions. [2020-11-09 12:50:40,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 12:50:40,452 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-11-09 12:50:40,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:50:40,455 INFO L225 Difference]: With dead ends: 242 [2020-11-09 12:50:40,455 INFO L226 Difference]: Without dead ends: 146 [2020-11-09 12:50:40,456 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:50:40,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-11-09 12:50:40,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-11-09 12:50:40,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-11-09 12:50:40,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 362 transitions. [2020-11-09 12:50:40,484 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 362 transitions. Word has length 9 [2020-11-09 12:50:40,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:50:40,485 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 362 transitions. [2020-11-09 12:50:40,485 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 12:50:40,485 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 362 transitions. [2020-11-09 12:50:40,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-09 12:50:40,486 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:50:40,486 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:50:40,487 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 12:50:40,487 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:50:40,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:50:40,489 INFO L82 PathProgramCache]: Analyzing trace with hash -906978528, now seen corresponding path program 1 times [2020-11-09 12:50:40,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:50:40,490 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303598346] [2020-11-09 12:50:40,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:50:40,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:50:40,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:50:40,601 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303598346] [2020-11-09 12:50:40,601 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:50:40,601 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 12:50:40,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610874468] [2020-11-09 12:50:40,602 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 12:50:40,602 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:50:40,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 12:50:40,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 12:50:40,604 INFO L87 Difference]: Start difference. First operand 146 states and 362 transitions. Second operand 4 states. [2020-11-09 12:50:40,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:50:40,649 INFO L93 Difference]: Finished difference Result 165 states and 377 transitions. [2020-11-09 12:50:40,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 12:50:40,649 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-09 12:50:40,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:50:40,651 INFO L225 Difference]: With dead ends: 165 [2020-11-09 12:50:40,651 INFO L226 Difference]: Without dead ends: 125 [2020-11-09 12:50:40,652 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:50:40,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-11-09 12:50:40,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2020-11-09 12:50:40,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-11-09 12:50:40,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 284 transitions. [2020-11-09 12:50:40,668 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 284 transitions. Word has length 11 [2020-11-09 12:50:40,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:50:40,668 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 284 transitions. [2020-11-09 12:50:40,668 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 12:50:40,668 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 284 transitions. [2020-11-09 12:50:40,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-09 12:50:40,670 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:50:40,671 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:50:40,671 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 12:50:40,671 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:50:40,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:50:40,674 INFO L82 PathProgramCache]: Analyzing trace with hash 1053183531, now seen corresponding path program 1 times [2020-11-09 12:50:40,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:50:40,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459133131] [2020-11-09 12:50:40,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:50:40,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:50:40,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:50:40,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459133131] [2020-11-09 12:50:40,813 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:50:40,813 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 12:50:40,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597096575] [2020-11-09 12:50:40,817 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 12:50:40,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:50:40,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 12:50:40,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:50:40,818 INFO L87 Difference]: Start difference. First operand 125 states and 284 transitions. Second operand 5 states. [2020-11-09 12:50:40,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:50:40,903 INFO L93 Difference]: Finished difference Result 122 states and 258 transitions. [2020-11-09 12:50:40,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 12:50:40,904 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-11-09 12:50:40,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:50:40,906 INFO L225 Difference]: With dead ends: 122 [2020-11-09 12:50:40,906 INFO L226 Difference]: Without dead ends: 97 [2020-11-09 12:50:40,907 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 [2020-11-09 12:50:40,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-11-09 12:50:40,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2020-11-09 12:50:40,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-11-09 12:50:40,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 202 transitions. [2020-11-09 12:50:40,928 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 202 transitions. Word has length 12 [2020-11-09 12:50:40,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:50:40,928 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 202 transitions. [2020-11-09 12:50:40,929 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 12:50:40,929 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 202 transitions. [2020-11-09 12:50:40,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-09 12:50:40,932 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:50:40,932 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:50:40,933 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 12:50:40,933 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:50:40,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:50:40,934 INFO L82 PathProgramCache]: Analyzing trace with hash -1529886427, now seen corresponding path program 1 times [2020-11-09 12:50:40,936 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:50:40,936 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709842434] [2020-11-09 12:50:40,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:50:40,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:50:41,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:50:41,026 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709842434] [2020-11-09 12:50:41,026 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:50:41,026 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 12:50:41,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707576591] [2020-11-09 12:50:41,027 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-09 12:50:41,027 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:50:41,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-09 12:50:41,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-09 12:50:41,028 INFO L87 Difference]: Start difference. First operand 97 states and 202 transitions. Second operand 6 states. [2020-11-09 12:50:41,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:50:41,094 INFO L93 Difference]: Finished difference Result 92 states and 190 transitions. [2020-11-09 12:50:41,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 12:50:41,094 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-11-09 12:50:41,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:50:41,095 INFO L225 Difference]: With dead ends: 92 [2020-11-09 12:50:41,095 INFO L226 Difference]: Without dead ends: 84 [2020-11-09 12:50:41,096 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 [2020-11-09 12:50:41,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-11-09 12:50:41,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2020-11-09 12:50:41,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-11-09 12:50:41,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 176 transitions. [2020-11-09 12:50:41,101 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 176 transitions. Word has length 14 [2020-11-09 12:50:41,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:50:41,102 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 176 transitions. [2020-11-09 12:50:41,102 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-09 12:50:41,102 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 176 transitions. [2020-11-09 12:50:41,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-09 12:50:41,103 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:50:41,103 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:50:41,103 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 12:50:41,103 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:50:41,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:50:41,104 INFO L82 PathProgramCache]: Analyzing trace with hash 212367058, now seen corresponding path program 1 times [2020-11-09 12:50:41,104 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:50:41,104 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300034386] [2020-11-09 12:50:41,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:50:41,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:50:41,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:50:41,175 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300034386] [2020-11-09 12:50:41,176 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:50:41,176 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 12:50:41,176 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11545747] [2020-11-09 12:50:41,176 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 12:50:41,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:50:41,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 12:50:41,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 12:50:41,179 INFO L87 Difference]: Start difference. First operand 84 states and 176 transitions. Second operand 4 states. [2020-11-09 12:50:41,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:50:41,200 INFO L93 Difference]: Finished difference Result 97 states and 197 transitions. [2020-11-09 12:50:41,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 12:50:41,201 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-09 12:50:41,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:50:41,202 INFO L225 Difference]: With dead ends: 97 [2020-11-09 12:50:41,202 INFO L226 Difference]: Without dead ends: 36 [2020-11-09 12:50:41,202 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 [2020-11-09 12:50:41,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-11-09 12:50:41,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-11-09 12:50:41,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-11-09 12:50:41,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 56 transitions. [2020-11-09 12:50:41,206 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 56 transitions. Word has length 17 [2020-11-09 12:50:41,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:50:41,206 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 56 transitions. [2020-11-09 12:50:41,207 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 12:50:41,207 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 56 transitions. [2020-11-09 12:50:41,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-09 12:50:41,208 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:50:41,208 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:50:41,209 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 12:50:41,209 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:50:41,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:50:41,210 INFO L82 PathProgramCache]: Analyzing trace with hash 671694040, now seen corresponding path program 2 times [2020-11-09 12:50:41,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:50:41,212 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336610877] [2020-11-09 12:50:41,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:50:41,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:50:41,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:50:41,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336610877] [2020-11-09 12:50:41,273 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:50:41,274 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 12:50:41,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809725715] [2020-11-09 12:50:41,274 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 12:50:41,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:50:41,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 12:50:41,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 12:50:41,276 INFO L87 Difference]: Start difference. First operand 36 states and 56 transitions. Second operand 4 states. [2020-11-09 12:50:41,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:50:41,295 INFO L93 Difference]: Finished difference Result 35 states and 55 transitions. [2020-11-09 12:50:41,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 12:50:41,295 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-09 12:50:41,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:50:41,296 INFO L225 Difference]: With dead ends: 35 [2020-11-09 12:50:41,296 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 12:50:41,296 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 [2020-11-09 12:50:41,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 12:50:41,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 12:50:41,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 12:50:41,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 12:50:41,298 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-11-09 12:50:41,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:50:41,298 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 12:50:41,298 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 12:50:41,298 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 12:50:41,298 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 12:50:41,299 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-09 12:50:41,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 12:50:41 BasicIcfg [2020-11-09 12:50:41,305 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 12:50:41,310 INFO L168 Benchmark]: Toolchain (without parser) took 8796.24 ms. Allocated memory was 151.0 MB in the beginning and 231.7 MB in the end (delta: 80.7 MB). Free memory was 124.6 MB in the beginning and 168.7 MB in the end (delta: -44.1 MB). Peak memory consumption was 37.4 MB. Max. memory is 8.0 GB. [2020-11-09 12:50:41,312 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory is still 122.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 12:50:41,313 INFO L168 Benchmark]: CACSL2BoogieTranslator took 798.31 ms. Allocated memory is still 151.0 MB. Free memory was 123.9 MB in the beginning and 129.5 MB in the end (delta: -5.6 MB). Peak memory consumption was 32.4 MB. Max. memory is 8.0 GB. [2020-11-09 12:50:41,314 INFO L168 Benchmark]: Boogie Procedure Inliner took 99.17 ms. Allocated memory is still 151.0 MB. Free memory was 129.5 MB in the beginning and 127.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 12:50:41,315 INFO L168 Benchmark]: Boogie Preprocessor took 68.48 ms. Allocated memory is still 151.0 MB. Free memory was 127.5 MB in the beginning and 125.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 12:50:41,316 INFO L168 Benchmark]: RCFGBuilder took 714.39 ms. Allocated memory is still 151.0 MB. Free memory was 125.9 MB in the beginning and 103.9 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-11-09 12:50:41,319 INFO L168 Benchmark]: TraceAbstraction took 7099.17 ms. Allocated memory was 151.0 MB in the beginning and 231.7 MB in the end (delta: 80.7 MB). Free memory was 103.3 MB in the beginning and 168.7 MB in the end (delta: -65.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 8.0 GB. [2020-11-09 12:50:41,325 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory is still 122.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 798.31 ms. Allocated memory is still 151.0 MB. Free memory was 123.9 MB in the beginning and 129.5 MB in the end (delta: -5.6 MB). Peak memory consumption was 32.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 99.17 ms. Allocated memory is still 151.0 MB. Free memory was 129.5 MB in the beginning and 127.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 68.48 ms. Allocated memory is still 151.0 MB. Free memory was 127.5 MB in the beginning and 125.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 714.39 ms. Allocated memory is still 151.0 MB. Free memory was 125.9 MB in the beginning and 103.9 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 7099.17 ms. Allocated memory was 151.0 MB in the beginning and 231.7 MB in the end (delta: 80.7 MB). Free memory was 103.3 MB in the beginning and 168.7 MB in the end (delta: -65.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1073 VarBasedMoverChecksPositive, 54 VarBasedMoverChecksNegative, 9 SemBasedMoverChecksPositive, 45 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 105 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 5.3s, 87 PlacesBefore, 31 PlacesAfterwards, 80 TransitionsBefore, 22 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 7 FixpointIterations, 19 TrivialSequentialCompositions, 46 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 2 ChoiceCompositions, 77 TotalNumberOfCompositions, 3412 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 78 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.9s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.4s, HoareTripleCheckerStatistics: 136 SDtfs, 132 SDslu, 188 SDs, 0 SdLazy, 96 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 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, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 88 NumberOfCodeBlocks, 88 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 81 ConstructedInterpolants, 0 QuantifiedInterpolants, 2789 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...