/usr/bin/java -Xmx16000000000 -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/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe037_power.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-12 06:26:36,420 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-12 06:26:36,425 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-12 06:26:36,484 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-12 06:26:36,484 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-12 06:26:36,490 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-12 06:26:36,494 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-12 06:26:36,503 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-12 06:26:36,506 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-12 06:26:36,511 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-12 06:26:36,512 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-12 06:26:36,516 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-12 06:26:36,517 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-12 06:26:36,520 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-12 06:26:36,521 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-12 06:26:36,525 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-12 06:26:36,526 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-12 06:26:36,527 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-12 06:26:36,532 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-12 06:26:36,539 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-12 06:26:36,542 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-12 06:26:36,543 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-12 06:26:36,545 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-12 06:26:36,546 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-12 06:26:36,552 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-12 06:26:36,552 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-12 06:26:36,552 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-12 06:26:36,555 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-12 06:26:36,556 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-12 06:26:36,557 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-12 06:26:36,557 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-12 06:26:36,558 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-12 06:26:36,560 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-12 06:26:36,561 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-12 06:26:36,562 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-12 06:26:36,562 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-12 06:26:36,563 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-12 06:26:36,563 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-12 06:26:36,563 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-12 06:26:36,564 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-12 06:26:36,565 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-12 06:26:36,566 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf [2020-11-12 06:26:36,622 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-12 06:26:36,623 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-12 06:26:36,627 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-12 06:26:36,627 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-12 06:26:36,628 INFO L138 SettingsManager]: * Use SBE=true [2020-11-12 06:26:36,628 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-12 06:26:36,629 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-12 06:26:36,629 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-12 06:26:36,629 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-12 06:26:36,629 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-12 06:26:36,630 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-12 06:26:36,631 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-12 06:26:36,631 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-12 06:26:36,631 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-12 06:26:36,631 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-12 06:26:36,631 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-12 06:26:36,632 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-12 06:26:36,632 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-12 06:26:36,632 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-12 06:26:36,632 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-12 06:26:36,633 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-12 06:26:36,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 06:26:36,633 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-12 06:26:36,633 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-12 06:26:36,633 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-12 06:26:36,634 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-12 06:26:36,634 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-12 06:26:36,634 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-12 06:26:36,634 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-12 06:26:36,634 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-12 06:26:36,635 INFO L138 SettingsManager]: * Sleep set reduction in concurrent analysis=DELAY_SET 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-12 06:26:37,011 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-12 06:26:37,043 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-12 06:26:37,046 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-12 06:26:37,047 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-12 06:26:37,048 INFO L275 PluginConnector]: CDTParser initialized [2020-11-12 06:26:37,049 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe037_power.opt.i [2020-11-12 06:26:37,141 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49deb8c62/22473aca2cf94d769f31a04d02efd10e/FLAG70050bb11 [2020-11-12 06:26:37,894 INFO L306 CDTParser]: Found 1 translation units. [2020-11-12 06:26:37,895 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe037_power.opt.i [2020-11-12 06:26:37,920 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49deb8c62/22473aca2cf94d769f31a04d02efd10e/FLAG70050bb11 [2020-11-12 06:26:38,143 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49deb8c62/22473aca2cf94d769f31a04d02efd10e [2020-11-12 06:26:38,156 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-12 06:26:38,167 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-12 06:26:38,169 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-12 06:26:38,170 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-12 06:26:38,173 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-12 06:26:38,175 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 06:26:38" (1/1) ... [2020-11-12 06:26:38,181 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@664324f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:26:38, skipping insertion in model container [2020-11-12 06:26:38,181 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 06:26:38" (1/1) ... [2020-11-12 06:26:38,190 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-12 06:26:38,252 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-12 06:26:38,676 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 06:26:38,690 INFO L203 MainTranslator]: Completed pre-run [2020-11-12 06:26:38,778 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 06:26:38,897 INFO L208 MainTranslator]: Completed translation [2020-11-12 06:26:38,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:26:38 WrapperNode [2020-11-12 06:26:38,898 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-12 06:26:38,900 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-12 06:26:38,900 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-12 06:26:38,901 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-12 06:26:38,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:26:38" (1/1) ... [2020-11-12 06:26:38,954 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:26:38" (1/1) ... [2020-11-12 06:26:39,015 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-12 06:26:39,016 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-12 06:26:39,016 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-12 06:26:39,016 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-12 06:26:39,025 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:26:38" (1/1) ... [2020-11-12 06:26:39,025 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:26:38" (1/1) ... [2020-11-12 06:26:39,028 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:26:38" (1/1) ... [2020-11-12 06:26:39,029 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:26:38" (1/1) ... [2020-11-12 06:26:39,036 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:26:38" (1/1) ... [2020-11-12 06:26:39,038 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:26:38" (1/1) ... [2020-11-12 06:26:39,040 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:26:38" (1/1) ... [2020-11-12 06:26:39,044 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-12 06:26:39,045 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-12 06:26:39,045 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-12 06:26:39,045 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-12 06:26:39,046 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:26:38" (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 [2020-11-12 06:26:39,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-12 06:26:39,136 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-12 06:26:39,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-12 06:26:39,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-12 06:26:39,138 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-12 06:26:39,138 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-12 06:26:39,139 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-12 06:26:39,139 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-12 06:26:39,140 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-12 06:26:39,140 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-12 06:26:39,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-12 06:26:39,140 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-12 06:26:39,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-12 06:26:39,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-12 06:26:39,142 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-12 06:26:39,689 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-12 06:26:39,689 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-12 06:26:39,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:26:39 BoogieIcfgContainer [2020-11-12 06:26:39,693 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-12 06:26:39,694 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-12 06:26:39,694 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-12 06:26:39,698 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-12 06:26:39,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 06:26:38" (1/3) ... [2020-11-12 06:26:39,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30f35e22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 06:26:39, skipping insertion in model container [2020-11-12 06:26:39,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:26:38" (2/3) ... [2020-11-12 06:26:39,700 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30f35e22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 06:26:39, skipping insertion in model container [2020-11-12 06:26:39,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:26:39" (3/3) ... [2020-11-12 06:26:39,701 INFO L111 eAbstractionObserver]: Analyzing ICFG safe037_power.opt.i [2020-11-12 06:26:39,723 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-12 06:26:39,724 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-12 06:26:39,728 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-12 06:26:39,729 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-12 06:26:39,777 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:39,777 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:39,778 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:39,778 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:39,778 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:39,778 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:39,778 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:39,779 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:39,779 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:39,779 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:39,780 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:39,780 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:39,781 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:39,781 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:39,781 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:39,781 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:39,781 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:39,782 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:39,782 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:39,782 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:39,782 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:39,783 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:39,783 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:39,783 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:39,789 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:39,791 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:39,791 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:39,791 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:39,792 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:39,793 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:39,793 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:39,793 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:39,798 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:39,798 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:39,799 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:39,799 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:39,804 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:39,805 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:39,805 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:39,805 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:39,812 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:39,813 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:39,813 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:39,813 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:39,817 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:39,818 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:39,818 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:39,818 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:39,821 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-12 06:26:39,834 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-12 06:26:39,874 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-12 06:26:39,874 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-12 06:26:39,874 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-12 06:26:39,874 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-12 06:26:39,875 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-12 06:26:39,875 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-12 06:26:39,875 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-12 06:26:39,875 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-12 06:26:39,893 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 87 places, 80 transitions, 175 flow [2020-11-12 06:26:40,745 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9849 states, 9847 states have (on average 3.6144003249720726) internal successors, (35591), 9848 states have internal predecessors, (35591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:41,428 WARN L455 BasicCegarLoop]: Sleep Set Reduction Time: 678ms [2020-11-12 06:26:41,463 WARN L456 BasicCegarLoop]: Sleep set: input automaton has 9849 states, 9847 states have (on average 3.6144003249720726) internal successors, (35591), 9848 states have internal predecessors, (35591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:41,534 WARN L457 BasicCegarLoop]: Sleep set: output automaton has 9849 states, 8911 states have (on average 1.4191448771181685) internal successors, (12646), 9848 states have internal predecessors, (12646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:41,561 INFO L276 IsEmpty]: Start isEmpty. Operand has 9849 states, 8911 states have (on average 1.4191448771181685) internal successors, (12646), 9848 states have internal predecessors, (12646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:41,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-11-12 06:26:41,580 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:26:41,581 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 06:26:41,582 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:26:41,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:26:41,588 INFO L82 PathProgramCache]: Analyzing trace with hash -1869165386, now seen corresponding path program 1 times [2020-11-12 06:26:41,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:26:41,599 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032332576] [2020-11-12 06:26:41,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:26:41,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:26:42,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:26:42,009 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032332576] [2020-11-12 06:26:42,010 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:26:42,010 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 06:26:42,011 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969481892] [2020-11-12 06:26:42,014 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 06:26:42,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:26:42,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 06:26:42,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 06:26:42,043 INFO L87 Difference]: Start difference. First operand has 9849 states, 8911 states have (on average 1.4191448771181685) internal successors, (12646), 9848 states have internal predecessors, (12646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:42,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:26:42,369 INFO L93 Difference]: Finished difference Result 9342 states and 11659 transitions. [2020-11-12 06:26:42,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 06:26:42,371 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2020-11-12 06:26:42,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:26:42,421 INFO L225 Difference]: With dead ends: 9342 [2020-11-12 06:26:42,421 INFO L226 Difference]: Without dead ends: 3830 [2020-11-12 06:26:42,424 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 06:26:42,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3830 states. [2020-11-12 06:26:42,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3830 to 3830. [2020-11-12 06:26:42,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3830 states, 3551 states have (on average 1.4686003942551393) internal successors, (5215), 3829 states have internal predecessors, (5215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:42,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3830 states to 3830 states and 5215 transitions. [2020-11-12 06:26:42,674 INFO L78 Accepts]: Start accepts. Automaton has 3830 states and 5215 transitions. Word has length 43 [2020-11-12 06:26:42,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:26:42,675 INFO L481 AbstractCegarLoop]: Abstraction has 3830 states and 5215 transitions. [2020-11-12 06:26:42,676 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:42,680 INFO L276 IsEmpty]: Start isEmpty. Operand 3830 states and 5215 transitions. [2020-11-12 06:26:42,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-11-12 06:26:42,688 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:26:42,688 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 06:26:42,695 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-12 06:26:42,695 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:26:42,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:26:42,698 INFO L82 PathProgramCache]: Analyzing trace with hash -1028386504, now seen corresponding path program 1 times [2020-11-12 06:26:42,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:26:42,699 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097985278] [2020-11-12 06:26:42,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:26:42,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:26:42,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:26:42,975 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097985278] [2020-11-12 06:26:42,976 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:26:42,976 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:26:42,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815386549] [2020-11-12 06:26:42,978 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:26:42,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:26:42,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:26:42,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:26:42,979 INFO L87 Difference]: Start difference. First operand 3830 states and 5215 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:43,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:26:43,209 INFO L93 Difference]: Finished difference Result 2876 states and 4270 transitions. [2020-11-12 06:26:43,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 06:26:43,210 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2020-11-12 06:26:43,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:26:43,221 INFO L225 Difference]: With dead ends: 2876 [2020-11-12 06:26:43,221 INFO L226 Difference]: Without dead ends: 2022 [2020-11-12 06:26:43,222 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-11-12 06:26:43,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2022 states. [2020-11-12 06:26:43,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2022 to 2022. [2020-11-12 06:26:43,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2022 states, 1887 states have (on average 1.4361420243773184) internal successors, (2710), 2021 states have internal predecessors, (2710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:43,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2022 states to 2022 states and 2710 transitions. [2020-11-12 06:26:43,281 INFO L78 Accepts]: Start accepts. Automaton has 2022 states and 2710 transitions. Word has length 47 [2020-11-12 06:26:43,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:26:43,281 INFO L481 AbstractCegarLoop]: Abstraction has 2022 states and 2710 transitions. [2020-11-12 06:26:43,281 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:43,282 INFO L276 IsEmpty]: Start isEmpty. Operand 2022 states and 2710 transitions. [2020-11-12 06:26:43,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-12 06:26:43,286 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:26:43,287 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 06:26:43,287 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-12 06:26:43,287 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:26:43,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:26:43,288 INFO L82 PathProgramCache]: Analyzing trace with hash 1357778806, now seen corresponding path program 1 times [2020-11-12 06:26:43,288 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:26:43,288 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136254035] [2020-11-12 06:26:43,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:26:43,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:26:43,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:26:43,449 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136254035] [2020-11-12 06:26:43,450 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:26:43,450 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-12 06:26:43,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638676651] [2020-11-12 06:26:43,450 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-12 06:26:43,451 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:26:43,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-12 06:26:43,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-12 06:26:43,452 INFO L87 Difference]: Start difference. First operand 2022 states and 2710 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:43,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:26:43,652 INFO L93 Difference]: Finished difference Result 1104 states and 1615 transitions. [2020-11-12 06:26:43,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-12 06:26:43,652 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2020-11-12 06:26:43,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:26:43,656 INFO L225 Difference]: With dead ends: 1104 [2020-11-12 06:26:43,657 INFO L226 Difference]: Without dead ends: 652 [2020-11-12 06:26:43,657 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-11-12 06:26:43,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2020-11-12 06:26:43,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 652. [2020-11-12 06:26:43,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 652 states, 625 states have (on average 1.3296) internal successors, (831), 651 states have internal predecessors, (831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:43,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 831 transitions. [2020-11-12 06:26:43,675 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 831 transitions. Word has length 51 [2020-11-12 06:26:43,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:26:43,676 INFO L481 AbstractCegarLoop]: Abstraction has 652 states and 831 transitions. [2020-11-12 06:26:43,676 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:43,676 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 831 transitions. [2020-11-12 06:26:43,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-11-12 06:26:43,678 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:26:43,679 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 06:26:43,679 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-12 06:26:43,679 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:26:43,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:26:43,680 INFO L82 PathProgramCache]: Analyzing trace with hash -288612556, now seen corresponding path program 1 times [2020-11-12 06:26:43,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:26:43,680 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320798696] [2020-11-12 06:26:43,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:26:43,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:26:43,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:26:43,807 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320798696] [2020-11-12 06:26:43,807 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:26:43,808 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:26:43,808 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845808053] [2020-11-12 06:26:43,808 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:26:43,808 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:26:43,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:26:43,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:26:43,811 INFO L87 Difference]: Start difference. First operand 652 states and 831 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:43,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:26:43,933 INFO L93 Difference]: Finished difference Result 880 states and 1175 transitions. [2020-11-12 06:26:43,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-12 06:26:43,934 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2020-11-12 06:26:43,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:26:43,937 INFO L225 Difference]: With dead ends: 880 [2020-11-12 06:26:43,937 INFO L226 Difference]: Without dead ends: 412 [2020-11-12 06:26:43,937 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-11-12 06:26:43,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2020-11-12 06:26:43,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 412. [2020-11-12 06:26:43,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 385 states have (on average 1.3948051948051947) internal successors, (537), 411 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:43,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 537 transitions. [2020-11-12 06:26:43,949 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 537 transitions. Word has length 55 [2020-11-12 06:26:43,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:26:43,950 INFO L481 AbstractCegarLoop]: Abstraction has 412 states and 537 transitions. [2020-11-12 06:26:43,950 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:43,950 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 537 transitions. [2020-11-12 06:26:43,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-11-12 06:26:43,951 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:26:43,952 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 06:26:43,952 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-12 06:26:43,952 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:26:43,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:26:43,953 INFO L82 PathProgramCache]: Analyzing trace with hash 1953173588, now seen corresponding path program 2 times [2020-11-12 06:26:43,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:26:43,953 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853860054] [2020-11-12 06:26:43,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:26:43,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:26:44,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:26:44,080 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853860054] [2020-11-12 06:26:44,080 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:26:44,080 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:26:44,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203825739] [2020-11-12 06:26:44,086 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:26:44,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:26:44,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:26:44,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:26:44,089 INFO L87 Difference]: Start difference. First operand 412 states and 537 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:44,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:26:44,192 INFO L93 Difference]: Finished difference Result 630 states and 868 transitions. [2020-11-12 06:26:44,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-12 06:26:44,193 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2020-11-12 06:26:44,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:26:44,195 INFO L225 Difference]: With dead ends: 630 [2020-11-12 06:26:44,196 INFO L226 Difference]: Without dead ends: 367 [2020-11-12 06:26:44,196 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-11-12 06:26:44,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2020-11-12 06:26:44,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 367. [2020-11-12 06:26:44,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 340 states have (on average 1.4205882352941177) internal successors, (483), 366 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:44,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 483 transitions. [2020-11-12 06:26:44,207 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 483 transitions. Word has length 55 [2020-11-12 06:26:44,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:26:44,208 INFO L481 AbstractCegarLoop]: Abstraction has 367 states and 483 transitions. [2020-11-12 06:26:44,208 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:44,208 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 483 transitions. [2020-11-12 06:26:44,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-11-12 06:26:44,210 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:26:44,210 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 06:26:44,210 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-12 06:26:44,210 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:26:44,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:26:44,211 INFO L82 PathProgramCache]: Analyzing trace with hash 1468190164, now seen corresponding path program 3 times [2020-11-12 06:26:44,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:26:44,211 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564284329] [2020-11-12 06:26:44,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:26:44,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:26:44,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:26:44,327 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564284329] [2020-11-12 06:26:44,327 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:26:44,328 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:26:44,328 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118652807] [2020-11-12 06:26:44,328 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:26:44,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:26:44,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:26:44,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:26:44,330 INFO L87 Difference]: Start difference. First operand 367 states and 483 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:44,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:26:44,412 INFO L93 Difference]: Finished difference Result 259 states and 375 transitions. [2020-11-12 06:26:44,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-12 06:26:44,412 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2020-11-12 06:26:44,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:26:44,413 INFO L225 Difference]: With dead ends: 259 [2020-11-12 06:26:44,413 INFO L226 Difference]: Without dead ends: 0 [2020-11-12 06:26:44,413 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-11-12 06:26:44,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-12 06:26:44,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-12 06:26:44,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:44,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-12 06:26:44,415 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 55 [2020-11-12 06:26:44,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:26:44,415 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-12 06:26:44,415 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:44,415 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-12 06:26:44,416 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-12 06:26:44,416 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-12 06:26:44,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 06:26:44 BasicIcfg [2020-11-12 06:26:44,421 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-12 06:26:44,424 INFO L168 Benchmark]: Toolchain (without parser) took 6261.76 ms. Allocated memory was 302.0 MB in the beginning and 570.4 MB in the end (delta: 268.4 MB). Free memory was 277.3 MB in the beginning and 448.3 MB in the end (delta: -171.0 MB). Peak memory consumption was 98.8 MB. Max. memory is 16.0 GB. [2020-11-12 06:26:44,425 INFO L168 Benchmark]: CDTParser took 0.64 ms. Allocated memory is still 302.0 MB. Free memory is still 272.3 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 06:26:44,425 INFO L168 Benchmark]: CACSL2BoogieTranslator took 728.80 ms. Allocated memory is still 302.0 MB. Free memory was 276.7 MB in the beginning and 246.1 MB in the end (delta: 30.6 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2020-11-12 06:26:44,426 INFO L168 Benchmark]: Boogie Procedure Inliner took 114.73 ms. Allocated memory is still 302.0 MB. Free memory was 245.8 MB in the beginning and 284.9 MB in the end (delta: -39.1 MB). Peak memory consumption was 4.6 MB. Max. memory is 16.0 GB. [2020-11-12 06:26:44,427 INFO L168 Benchmark]: Boogie Preprocessor took 28.61 ms. Allocated memory is still 302.0 MB. Free memory was 284.9 MB in the beginning and 283.3 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 06:26:44,428 INFO L168 Benchmark]: RCFGBuilder took 647.75 ms. Allocated memory is still 302.0 MB. Free memory was 282.5 MB in the beginning and 260.5 MB in the end (delta: 22.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2020-11-12 06:26:44,429 INFO L168 Benchmark]: TraceAbstraction took 4727.07 ms. Allocated memory was 302.0 MB in the beginning and 570.4 MB in the end (delta: 268.4 MB). Free memory was 259.4 MB in the beginning and 448.3 MB in the end (delta: -188.9 MB). Peak memory consumption was 81.7 MB. Max. memory is 16.0 GB. [2020-11-12 06:26:44,433 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.64 ms. Allocated memory is still 302.0 MB. Free memory is still 272.3 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 728.80 ms. Allocated memory is still 302.0 MB. Free memory was 276.7 MB in the beginning and 246.1 MB in the end (delta: 30.6 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 114.73 ms. Allocated memory is still 302.0 MB. Free memory was 245.8 MB in the beginning and 284.9 MB in the end (delta: -39.1 MB). Peak memory consumption was 4.6 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 28.61 ms. Allocated memory is still 302.0 MB. Free memory was 284.9 MB in the beginning and 283.3 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 647.75 ms. Allocated memory is still 302.0 MB. Free memory was 282.5 MB in the beginning and 260.5 MB in the end (delta: 22.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4727.07 ms. Allocated memory was 302.0 MB in the beginning and 570.4 MB in the end (delta: 268.4 MB). Free memory was 259.4 MB in the beginning and 448.3 MB in the end (delta: -188.9 MB). Peak memory consumption was 81.7 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 4.5s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 468 SDtfs, 622 SDslu, 1772 SDs, 0 SdLazy, 227 SolverSat, 50 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9849occurred 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: 0.3s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 306 NumberOfCodeBlocks, 306 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 300 ConstructedInterpolants, 0 QuantifiedInterpolants, 37956 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...