/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/thin002_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 12:56:23,068 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 12:56:23,070 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 12:56:23,123 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 12:56:23,124 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 12:56:23,126 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 12:56:23,127 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 12:56:23,130 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 12:56:23,132 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 12:56:23,133 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 12:56:23,135 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 12:56:23,136 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 12:56:23,136 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 12:56:23,138 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 12:56:23,139 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 12:56:23,141 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 12:56:23,142 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 12:56:23,143 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 12:56:23,145 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 12:56:23,147 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 12:56:23,149 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 12:56:23,151 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 12:56:23,152 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 12:56:23,153 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 12:56:23,175 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-09 12:56:23,185 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 12:56:23,185 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 12:56:23,186 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 12:56:23,187 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 12:56:23,189 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 12:56:23,189 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 12:56:23,190 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 12:56:23,190 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 12:56:23,190 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 12:56:23,191 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 12:56:23,192 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 12:56:23,193 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 12:56:23,220 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 12:56:23,221 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 12:56:23,222 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 12:56:23,223 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 12:56:23,223 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 12:56:23,223 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 12:56:23,223 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 12:56:23,224 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 12:56:23,224 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 12:56:23,224 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 12:56:23,224 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 12:56:23,225 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 12:56:23,225 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 12:56:23,225 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 12:56:23,225 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 12:56:23,225 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 12:56:23,226 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 12:56:23,226 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 12:56:23,226 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 12:56:23,226 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 12:56:23,227 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 12:56:23,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 12:56:23,227 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 12:56:23,227 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-09 12:56:23,227 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 12:56:23,228 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 12:56:23,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 12:56:23,228 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 12:56:23,228 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-09 12:56:23,229 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 12:56:23,614 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 12:56:23,644 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 12:56:23,647 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 12:56:23,648 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 12:56:23,649 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 12:56:23,650 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.oepc.i [2020-11-09 12:56:23,746 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08e5045e7/7d3db07ae5e64c9a8328983c4d276253/FLAG85476f882 [2020-11-09 12:56:24,513 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 12:56:24,514 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_tso.oepc.i [2020-11-09 12:56:24,537 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08e5045e7/7d3db07ae5e64c9a8328983c4d276253/FLAG85476f882 [2020-11-09 12:56:24,744 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08e5045e7/7d3db07ae5e64c9a8328983c4d276253 [2020-11-09 12:56:24,749 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 12:56:24,757 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 12:56:24,761 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 12:56:24,761 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 12:56:24,765 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 12:56:24,766 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:56:24" (1/1) ... [2020-11-09 12:56:24,775 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@127abd90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:56:24, skipping insertion in model container [2020-11-09 12:56:24,776 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:56:24" (1/1) ... [2020-11-09 12:56:24,786 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 12:56:24,864 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 12:56:25,274 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 12:56:25,296 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 12:56:25,348 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 12:56:25,471 INFO L208 MainTranslator]: Completed translation [2020-11-09 12:56:25,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:56:25 WrapperNode [2020-11-09 12:56:25,472 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 12:56:25,473 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 12:56:25,474 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 12:56:25,474 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 12:56:25,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:56:25" (1/1) ... [2020-11-09 12:56:25,499 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:56:25" (1/1) ... [2020-11-09 12:56:25,523 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 12:56:25,524 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 12:56:25,525 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 12:56:25,525 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 12:56:25,534 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:56:25" (1/1) ... [2020-11-09 12:56:25,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:56:25" (1/1) ... [2020-11-09 12:56:25,538 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:56:25" (1/1) ... [2020-11-09 12:56:25,538 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:56:25" (1/1) ... [2020-11-09 12:56:25,545 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:56:25" (1/1) ... [2020-11-09 12:56:25,548 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:56:25" (1/1) ... [2020-11-09 12:56:25,550 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:56:25" (1/1) ... [2020-11-09 12:56:25,554 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 12:56:25,555 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 12:56:25,555 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 12:56:25,555 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 12:56:25,556 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:56:25" (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 12:56:25,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 12:56:25,640 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 12:56:25,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 12:56:25,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 12:56:25,640 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 12:56:25,640 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 12:56:25,640 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 12:56:25,641 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 12:56:25,641 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-09 12:56:25,641 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-09 12:56:25,641 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-11-09 12:56:25,641 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-11-09 12:56:25,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 12:56:25,642 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 12:56:25,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 12:56:25,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 12:56:25,644 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 12:56:26,126 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 12:56:26,127 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 12:56:26,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:56:26 BoogieIcfgContainer [2020-11-09 12:56:26,129 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 12:56:26,131 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 12:56:26,131 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 12:56:26,135 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 12:56:26,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 12:56:24" (1/3) ... [2020-11-09 12:56:26,136 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c95d442 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 12:56:26, skipping insertion in model container [2020-11-09 12:56:26,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:56:25" (2/3) ... [2020-11-09 12:56:26,137 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c95d442 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 12:56:26, skipping insertion in model container [2020-11-09 12:56:26,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:56:26" (3/3) ... [2020-11-09 12:56:26,139 INFO L111 eAbstractionObserver]: Analyzing ICFG thin002_tso.oepc.i [2020-11-09 12:56:26,155 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 12:56:26,155 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-09 12:56:26,159 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 12:56:26,161 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 12:56:26,201 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,202 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,202 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,202 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,203 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,203 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,203 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,203 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,204 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,204 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,205 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,205 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,206 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,206 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,206 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,206 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,206 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,207 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,207 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,207 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,208 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,208 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,208 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,208 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,209 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,209 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,209 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,209 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,210 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,210 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,210 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,210 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,211 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,211 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,211 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,211 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,212 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,212 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,212 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,212 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,213 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,213 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,213 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,213 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,214 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,214 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,214 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,214 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,217 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,217 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,217 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,217 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,225 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,226 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,226 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,226 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,231 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,231 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,232 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,232 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,234 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,235 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,235 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,235 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:26,238 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 12:56:26,250 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-09 12:56:26,271 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 12:56:26,271 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 12:56:26,272 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-09 12:56:26,272 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-09 12:56:26,272 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 12:56:26,272 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 12:56:26,272 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 12:56:26,272 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 12:56:26,285 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-09 12:56:26,288 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 105 places, 95 transitions, 210 flow [2020-11-09 12:56:26,291 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 105 places, 95 transitions, 210 flow [2020-11-09 12:56:26,293 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 105 places, 95 transitions, 210 flow [2020-11-09 12:56:26,349 INFO L129 PetriNetUnfolder]: 3/91 cut-off events. [2020-11-09 12:56:26,349 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 12:56:26,355 INFO L84 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 91 events. 3/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 74 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2020-11-09 12:56:26,359 INFO L116 LiptonReduction]: Number of co-enabled transitions 2256 [2020-11-09 12:56:26,881 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-11-09 12:56:30,415 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2020-11-09 12:56:30,561 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2020-11-09 12:56:31,412 WARN L194 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2020-11-09 12:56:31,543 WARN L194 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-11-09 12:56:31,826 WARN L194 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2020-11-09 12:56:31,981 WARN L194 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-11-09 12:56:32,066 INFO L131 LiptonReduction]: Checked pairs total: 4418 [2020-11-09 12:56:32,066 INFO L133 LiptonReduction]: Total number of compositions: 80 [2020-11-09 12:56:32,075 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 29 transitions, 78 flow [2020-11-09 12:56:32,199 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1450 states. [2020-11-09 12:56:32,201 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states. [2020-11-09 12:56:32,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-09 12:56:32,215 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:56:32,216 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:56:32,217 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:56:32,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:56:32,231 INFO L82 PathProgramCache]: Analyzing trace with hash 481695671, now seen corresponding path program 1 times [2020-11-09 12:56:32,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:56:32,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021672421] [2020-11-09 12:56:32,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:56:32,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:56:32,457 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 12:56:32,457 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021672421] [2020-11-09 12:56:32,458 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:56:32,459 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 12:56:32,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305211906] [2020-11-09 12:56:32,466 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-09 12:56:32,466 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:56:32,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-09 12:56:32,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-09 12:56:32,490 INFO L87 Difference]: Start difference. First operand 1450 states. Second operand 2 states. [2020-11-09 12:56:32,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:56:32,589 INFO L93 Difference]: Finished difference Result 1450 states and 5376 transitions. [2020-11-09 12:56:32,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-09 12:56:32,591 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-09 12:56:32,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:56:32,644 INFO L225 Difference]: With dead ends: 1450 [2020-11-09 12:56:32,644 INFO L226 Difference]: Without dead ends: 1194 [2020-11-09 12:56:32,645 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-09 12:56:32,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1194 states. [2020-11-09 12:56:32,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1194 to 1194. [2020-11-09 12:56:32,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1194 states. [2020-11-09 12:56:32,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1194 states to 1194 states and 4352 transitions. [2020-11-09 12:56:32,808 INFO L78 Accepts]: Start accepts. Automaton has 1194 states and 4352 transitions. Word has length 10 [2020-11-09 12:56:32,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:56:32,809 INFO L481 AbstractCegarLoop]: Abstraction has 1194 states and 4352 transitions. [2020-11-09 12:56:32,809 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-09 12:56:32,809 INFO L276 IsEmpty]: Start isEmpty. Operand 1194 states and 4352 transitions. [2020-11-09 12:56:32,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-09 12:56:32,818 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:56:32,818 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:56:32,819 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 12:56:32,819 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:56:32,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:56:32,824 INFO L82 PathProgramCache]: Analyzing trace with hash 2047662136, now seen corresponding path program 1 times [2020-11-09 12:56:32,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:56:32,825 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421654903] [2020-11-09 12:56:32,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:56:32,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:56:33,063 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 12:56:33,064 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421654903] [2020-11-09 12:56:33,064 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:56:33,064 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 12:56:33,064 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363836285] [2020-11-09 12:56:33,066 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 12:56:33,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:56:33,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 12:56:33,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:56:33,067 INFO L87 Difference]: Start difference. First operand 1194 states and 4352 transitions. Second operand 5 states. [2020-11-09 12:56:33,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:56:33,209 INFO L93 Difference]: Finished difference Result 1322 states and 4640 transitions. [2020-11-09 12:56:33,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 12:56:33,210 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-11-09 12:56:33,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:56:33,220 INFO L225 Difference]: With dead ends: 1322 [2020-11-09 12:56:33,220 INFO L226 Difference]: Without dead ends: 1066 [2020-11-09 12:56:33,221 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-09 12:56:33,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2020-11-09 12:56:33,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1066. [2020-11-09 12:56:33,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1066 states. [2020-11-09 12:56:33,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 3808 transitions. [2020-11-09 12:56:33,267 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 3808 transitions. Word has length 11 [2020-11-09 12:56:33,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:56:33,268 INFO L481 AbstractCegarLoop]: Abstraction has 1066 states and 3808 transitions. [2020-11-09 12:56:33,268 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 12:56:33,270 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 3808 transitions. [2020-11-09 12:56:33,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-09 12:56:33,271 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:56:33,272 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:56:33,272 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 12:56:33,272 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:56:33,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:56:33,273 INFO L82 PathProgramCache]: Analyzing trace with hash -1638119967, now seen corresponding path program 1 times [2020-11-09 12:56:33,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:56:33,273 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685713620] [2020-11-09 12:56:33,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:56:33,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:56:33,430 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 12:56:33,431 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685713620] [2020-11-09 12:56:33,431 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:56:33,431 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 12:56:33,431 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397246306] [2020-11-09 12:56:33,432 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 12:56:33,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:56:33,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 12:56:33,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 12:56:33,433 INFO L87 Difference]: Start difference. First operand 1066 states and 3808 transitions. Second operand 4 states. [2020-11-09 12:56:33,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:56:33,509 INFO L93 Difference]: Finished difference Result 1162 states and 4016 transitions. [2020-11-09 12:56:33,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 12:56:33,510 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-11-09 12:56:33,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:56:33,519 INFO L225 Difference]: With dead ends: 1162 [2020-11-09 12:56:33,519 INFO L226 Difference]: Without dead ends: 970 [2020-11-09 12:56:33,520 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:56:33,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2020-11-09 12:56:33,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 970. [2020-11-09 12:56:33,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 970 states. [2020-11-09 12:56:33,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 3408 transitions. [2020-11-09 12:56:33,561 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 3408 transitions. Word has length 12 [2020-11-09 12:56:33,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:56:33,562 INFO L481 AbstractCegarLoop]: Abstraction has 970 states and 3408 transitions. [2020-11-09 12:56:33,562 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 12:56:33,562 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 3408 transitions. [2020-11-09 12:56:33,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-09 12:56:33,564 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:56:33,564 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:56:33,565 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 12:56:33,565 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:56:33,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:56:33,568 INFO L82 PathProgramCache]: Analyzing trace with hash 757850280, now seen corresponding path program 1 times [2020-11-09 12:56:33,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:56:33,569 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447890867] [2020-11-09 12:56:33,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:56:33,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:56:33,694 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 12:56:33,695 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447890867] [2020-11-09 12:56:33,695 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:56:33,695 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 12:56:33,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506866623] [2020-11-09 12:56:33,696 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-09 12:56:33,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:56:33,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-09 12:56:33,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-09 12:56:33,700 INFO L87 Difference]: Start difference. First operand 970 states and 3408 transitions. Second operand 6 states. [2020-11-09 12:56:33,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:56:33,938 INFO L93 Difference]: Finished difference Result 1408 states and 4768 transitions. [2020-11-09 12:56:33,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-09 12:56:33,938 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-11-09 12:56:33,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:56:33,946 INFO L225 Difference]: With dead ends: 1408 [2020-11-09 12:56:33,946 INFO L226 Difference]: Without dead ends: 760 [2020-11-09 12:56:33,947 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-11-09 12:56:33,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states. [2020-11-09 12:56:33,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 760. [2020-11-09 12:56:33,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 760 states. [2020-11-09 12:56:33,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 760 states to 760 states and 2490 transitions. [2020-11-09 12:56:33,982 INFO L78 Accepts]: Start accepts. Automaton has 760 states and 2490 transitions. Word has length 13 [2020-11-09 12:56:33,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:56:33,983 INFO L481 AbstractCegarLoop]: Abstraction has 760 states and 2490 transitions. [2020-11-09 12:56:33,983 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-09 12:56:33,983 INFO L276 IsEmpty]: Start isEmpty. Operand 760 states and 2490 transitions. [2020-11-09 12:56:33,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-09 12:56:33,985 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:56:33,985 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:56:33,985 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 12:56:33,985 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:56:33,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:56:33,986 INFO L82 PathProgramCache]: Analyzing trace with hash 442521126, now seen corresponding path program 1 times [2020-11-09 12:56:33,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:56:33,987 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847972663] [2020-11-09 12:56:33,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:56:34,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:56:34,110 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 12:56:34,110 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847972663] [2020-11-09 12:56:34,111 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:56:34,111 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 12:56:34,112 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376870857] [2020-11-09 12:56:34,112 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 12:56:34,112 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:56:34,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 12:56:34,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 12:56:34,113 INFO L87 Difference]: Start difference. First operand 760 states and 2490 transitions. Second operand 4 states. [2020-11-09 12:56:34,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:56:34,153 INFO L93 Difference]: Finished difference Result 814 states and 2592 transitions. [2020-11-09 12:56:34,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 12:56:34,154 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-11-09 12:56:34,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:56:34,162 INFO L225 Difference]: With dead ends: 814 [2020-11-09 12:56:34,163 INFO L226 Difference]: Without dead ends: 706 [2020-11-09 12:56:34,163 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 12:56:34,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2020-11-09 12:56:34,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2020-11-09 12:56:34,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2020-11-09 12:56:34,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 2280 transitions. [2020-11-09 12:56:34,198 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 2280 transitions. Word has length 14 [2020-11-09 12:56:34,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:56:34,198 INFO L481 AbstractCegarLoop]: Abstraction has 706 states and 2280 transitions. [2020-11-09 12:56:34,198 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 12:56:34,199 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 2280 transitions. [2020-11-09 12:56:34,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-09 12:56:34,200 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:56:34,200 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:56:34,201 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 12:56:34,201 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:56:34,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:56:34,203 INFO L82 PathProgramCache]: Analyzing trace with hash 370381435, now seen corresponding path program 1 times [2020-11-09 12:56:34,203 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:56:34,203 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170673879] [2020-11-09 12:56:34,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:56:34,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:56:34,300 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 12:56:34,300 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170673879] [2020-11-09 12:56:34,301 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:56:34,302 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 12:56:34,303 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707925474] [2020-11-09 12:56:34,303 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 12:56:34,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:56:34,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 12:56:34,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:56:34,305 INFO L87 Difference]: Start difference. First operand 706 states and 2280 transitions. Second operand 5 states. [2020-11-09 12:56:34,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:56:34,398 INFO L93 Difference]: Finished difference Result 748 states and 2356 transitions. [2020-11-09 12:56:34,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 12:56:34,399 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-11-09 12:56:34,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:56:34,405 INFO L225 Difference]: With dead ends: 748 [2020-11-09 12:56:34,406 INFO L226 Difference]: Without dead ends: 664 [2020-11-09 12:56:34,406 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-09 12:56:34,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2020-11-09 12:56:34,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 664. [2020-11-09 12:56:34,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 664 states. [2020-11-09 12:56:34,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 2120 transitions. [2020-11-09 12:56:34,439 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 2120 transitions. Word has length 15 [2020-11-09 12:56:34,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:56:34,440 INFO L481 AbstractCegarLoop]: Abstraction has 664 states and 2120 transitions. [2020-11-09 12:56:34,440 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 12:56:34,440 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 2120 transitions. [2020-11-09 12:56:34,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-09 12:56:34,443 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:56:34,443 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:56:34,443 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 12:56:34,443 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:56:34,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:56:34,444 INFO L82 PathProgramCache]: Analyzing trace with hash -1067611378, now seen corresponding path program 1 times [2020-11-09 12:56:34,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:56:34,444 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675359472] [2020-11-09 12:56:34,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:56:34,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:56:34,565 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 12:56:34,565 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675359472] [2020-11-09 12:56:34,565 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:56:34,565 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 12:56:34,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757441857] [2020-11-09 12:56:34,566 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-09 12:56:34,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:56:34,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-09 12:56:34,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-09 12:56:34,571 INFO L87 Difference]: Start difference. First operand 664 states and 2120 transitions. Second operand 6 states. [2020-11-09 12:56:34,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:56:34,700 INFO L93 Difference]: Finished difference Result 865 states and 2728 transitions. [2020-11-09 12:56:34,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-09 12:56:34,701 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-11-09 12:56:34,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:56:34,704 INFO L225 Difference]: With dead ends: 865 [2020-11-09 12:56:34,704 INFO L226 Difference]: Without dead ends: 364 [2020-11-09 12:56:34,706 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-11-09 12:56:34,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2020-11-09 12:56:34,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 364. [2020-11-09 12:56:34,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 364 states. [2020-11-09 12:56:34,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 1090 transitions. [2020-11-09 12:56:34,721 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 1090 transitions. Word has length 16 [2020-11-09 12:56:34,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:56:34,722 INFO L481 AbstractCegarLoop]: Abstraction has 364 states and 1090 transitions. [2020-11-09 12:56:34,722 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-09 12:56:34,722 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 1090 transitions. [2020-11-09 12:56:34,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-09 12:56:34,723 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:56:34,723 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 12:56:34,724 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-09 12:56:34,724 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:56:34,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:56:34,724 INFO L82 PathProgramCache]: Analyzing trace with hash 278350448, now seen corresponding path program 1 times [2020-11-09 12:56:34,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:56:34,725 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376673592] [2020-11-09 12:56:34,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:56:34,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:56:34,833 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 12:56:34,834 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376673592] [2020-11-09 12:56:34,834 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:56:34,834 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 12:56:34,835 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021635887] [2020-11-09 12:56:34,835 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-09 12:56:34,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:56:34,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-09 12:56:34,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-09 12:56:34,836 INFO L87 Difference]: Start difference. First operand 364 states and 1090 transitions. Second operand 6 states. [2020-11-09 12:56:34,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:56:34,940 INFO L93 Difference]: Finished difference Result 436 states and 1267 transitions. [2020-11-09 12:56:34,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 12:56:34,940 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-11-09 12:56:34,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:56:34,943 INFO L225 Difference]: With dead ends: 436 [2020-11-09 12:56:34,944 INFO L226 Difference]: Without dead ends: 262 [2020-11-09 12:56:34,944 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-11-09 12:56:34,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-11-09 12:56:34,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2020-11-09 12:56:34,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-11-09 12:56:34,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 768 transitions. [2020-11-09 12:56:34,956 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 768 transitions. Word has length 17 [2020-11-09 12:56:34,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:56:34,957 INFO L481 AbstractCegarLoop]: Abstraction has 262 states and 768 transitions. [2020-11-09 12:56:34,957 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-09 12:56:34,957 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 768 transitions. [2020-11-09 12:56:34,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-09 12:56:34,958 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:56:34,958 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 12:56:34,958 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-09 12:56:34,959 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:56:34,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:56:34,959 INFO L82 PathProgramCache]: Analyzing trace with hash 253681578, now seen corresponding path program 1 times [2020-11-09 12:56:34,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:56:34,965 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720706718] [2020-11-09 12:56:34,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:56:34,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:56:35,057 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 12:56:35,057 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720706718] [2020-11-09 12:56:35,057 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:56:35,057 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 12:56:35,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005716507] [2020-11-09 12:56:35,058 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-09 12:56:35,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:56:35,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-09 12:56:35,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-09 12:56:35,060 INFO L87 Difference]: Start difference. First operand 262 states and 768 transitions. Second operand 6 states. [2020-11-09 12:56:35,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:56:35,183 INFO L93 Difference]: Finished difference Result 388 states and 1116 transitions. [2020-11-09 12:56:35,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-09 12:56:35,184 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-11-09 12:56:35,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:56:35,186 INFO L225 Difference]: With dead ends: 388 [2020-11-09 12:56:35,186 INFO L226 Difference]: Without dead ends: 214 [2020-11-09 12:56:35,186 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-11-09 12:56:35,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2020-11-09 12:56:35,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2020-11-09 12:56:35,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-11-09 12:56:35,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 602 transitions. [2020-11-09 12:56:35,196 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 602 transitions. Word has length 17 [2020-11-09 12:56:35,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:56:35,196 INFO L481 AbstractCegarLoop]: Abstraction has 214 states and 602 transitions. [2020-11-09 12:56:35,196 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-09 12:56:35,196 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 602 transitions. [2020-11-09 12:56:35,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-09 12:56:35,197 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:56:35,197 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:56:35,197 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-09 12:56:35,197 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:56:35,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:56:35,198 INFO L82 PathProgramCache]: Analyzing trace with hash 305335372, now seen corresponding path program 1 times [2020-11-09 12:56:35,198 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:56:35,198 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626217469] [2020-11-09 12:56:35,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:56:35,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:56:35,276 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 12:56:35,277 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626217469] [2020-11-09 12:56:35,277 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:56:35,277 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 12:56:35,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76526564] [2020-11-09 12:56:35,278 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-09 12:56:35,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:56:35,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-09 12:56:35,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-09 12:56:35,279 INFO L87 Difference]: Start difference. First operand 214 states and 602 transitions. Second operand 6 states. [2020-11-09 12:56:35,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:56:35,365 INFO L93 Difference]: Finished difference Result 259 states and 707 transitions. [2020-11-09 12:56:35,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 12:56:35,366 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-11-09 12:56:35,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:56:35,369 INFO L225 Difference]: With dead ends: 259 [2020-11-09 12:56:35,370 INFO L226 Difference]: Without dead ends: 148 [2020-11-09 12:56:35,370 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-11-09 12:56:35,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-11-09 12:56:35,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2020-11-09 12:56:35,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-11-09 12:56:35,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 398 transitions. [2020-11-09 12:56:35,375 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 398 transitions. Word has length 18 [2020-11-09 12:56:35,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:56:35,376 INFO L481 AbstractCegarLoop]: Abstraction has 148 states and 398 transitions. [2020-11-09 12:56:35,376 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-09 12:56:35,376 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 398 transitions. [2020-11-09 12:56:35,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-09 12:56:35,377 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:56:35,377 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:56:35,377 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-09 12:56:35,377 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:56:35,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:56:35,378 INFO L82 PathProgramCache]: Analyzing trace with hash -2040946232, now seen corresponding path program 1 times [2020-11-09 12:56:35,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:56:35,378 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245045745] [2020-11-09 12:56:35,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:56:35,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:56:35,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:56:35,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245045745] [2020-11-09 12:56:35,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:56:35,464 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 12:56:35,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816958579] [2020-11-09 12:56:35,464 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-09 12:56:35,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:56:35,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-09 12:56:35,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-09 12:56:35,467 INFO L87 Difference]: Start difference. First operand 148 states and 398 transitions. Second operand 6 states. [2020-11-09 12:56:35,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:56:35,602 INFO L93 Difference]: Finished difference Result 124 states and 322 transitions. [2020-11-09 12:56:35,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-09 12:56:35,603 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-11-09 12:56:35,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:56:35,603 INFO L225 Difference]: With dead ends: 124 [2020-11-09 12:56:35,603 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 12:56:35,604 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-11-09 12:56:35,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 12:56:35,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 12:56:35,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 12:56:35,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 12:56:35,605 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-11-09 12:56:35,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:56:35,605 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 12:56:35,606 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-09 12:56:35,606 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 12:56:35,606 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 12:56:35,606 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-09 12:56:35,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 12:56:35 BasicIcfg [2020-11-09 12:56:35,611 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 12:56:35,613 INFO L168 Benchmark]: Toolchain (without parser) took 10861.32 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 124.6 MB in the beginning and 181.9 MB in the end (delta: -57.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 8.0 GB. [2020-11-09 12:56:35,614 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory is still 124.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 12:56:35,618 INFO L168 Benchmark]: CACSL2BoogieTranslator took 712.04 ms. Allocated memory is still 151.0 MB. Free memory was 124.0 MB in the beginning and 124.8 MB in the end (delta: -801.1 kB). Peak memory consumption was 28.0 MB. Max. memory is 8.0 GB. [2020-11-09 12:56:35,622 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.29 ms. Allocated memory is still 151.0 MB. Free memory was 124.8 MB in the beginning and 123.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 12:56:35,623 INFO L168 Benchmark]: Boogie Preprocessor took 29.41 ms. Allocated memory is still 151.0 MB. Free memory was 123.3 MB in the beginning and 121.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 12:56:35,627 INFO L168 Benchmark]: RCFGBuilder took 574.70 ms. Allocated memory is still 151.0 MB. Free memory was 121.7 MB in the beginning and 97.3 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. [2020-11-09 12:56:35,628 INFO L168 Benchmark]: TraceAbstraction took 9479.94 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 96.5 MB in the beginning and 181.9 MB in the end (delta: -85.3 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 12:56:35,634 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory is still 124.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 712.04 ms. Allocated memory is still 151.0 MB. Free memory was 124.0 MB in the beginning and 124.8 MB in the end (delta: -801.1 kB). Peak memory consumption was 28.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 50.29 ms. Allocated memory is still 151.0 MB. Free memory was 124.8 MB in the beginning and 123.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 29.41 ms. Allocated memory is still 151.0 MB. Free memory was 123.3 MB in the beginning and 121.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 574.70 ms. Allocated memory is still 151.0 MB. Free memory was 121.7 MB in the beginning and 97.3 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 9479.94 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 96.5 MB in the beginning and 181.9 MB in the end (delta: -85.3 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1644 VarBasedMoverChecksPositive, 61 VarBasedMoverChecksNegative, 12 SemBasedMoverChecksPositive, 49 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 172 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 5.7s, 105 PlacesBefore, 41 PlacesAfterwards, 95 TransitionsBefore, 29 TransitionsAfterwards, 2256 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 2 ChoiceCompositions, 80 TotalNumberOfCompositions, 4418 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 93 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 9.3s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.9s, HoareTripleCheckerStatistics: 269 SDtfs, 542 SDslu, 550 SDs, 0 SdLazy, 294 SolverSat, 79 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1450occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 161 NumberOfCodeBlocks, 161 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 150 ConstructedInterpolants, 0 QuantifiedInterpolants, 11727 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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...