/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/safe035_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 12:54:45,977 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 12:54:45,982 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 12:54:46,045 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 12:54:46,045 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 12:54:46,051 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 12:54:46,055 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 12:54:46,064 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 12:54:46,068 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 12:54:46,074 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 12:54:46,076 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 12:54:46,077 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 12:54:46,078 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 12:54:46,081 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 12:54:46,084 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 12:54:46,087 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 12:54:46,089 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 12:54:46,093 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 12:54:46,109 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 12:54:46,114 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 12:54:46,116 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 12:54:46,119 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 12:54:46,120 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 12:54:46,121 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 12:54:46,124 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-09 12:54:46,128 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 12:54:46,129 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 12:54:46,130 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 12:54:46,131 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 12:54:46,132 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 12:54:46,133 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 12:54:46,133 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 12:54:46,134 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 12:54:46,134 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 12:54:46,135 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 12:54:46,136 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 12:54:46,137 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 12:54:46,163 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 12:54:46,163 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 12:54:46,165 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 12:54:46,165 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 12:54:46,165 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 12:54:46,166 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 12:54:46,166 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 12:54:46,166 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 12:54:46,166 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 12:54:46,167 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 12:54:46,167 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 12:54:46,167 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 12:54:46,167 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 12:54:46,167 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 12:54:46,167 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 12:54:46,168 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 12:54:46,168 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 12:54:46,168 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 12:54:46,168 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 12:54:46,168 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 12:54:46,169 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 12:54:46,169 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 12:54:46,169 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 12:54:46,169 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-09 12:54:46,170 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 12:54:46,170 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 12:54:46,170 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 12:54:46,170 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 12:54:46,170 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-09 12:54:46,170 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 12:54:46,552 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 12:54:46,610 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 12:54:46,614 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 12:54:46,616 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 12:54:46,617 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 12:54:46,618 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe035_tso.oepc.i [2020-11-09 12:54:46,694 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/029749a5f/fae739ac5019487bb8a44063ae6bea0f/FLAGefb69866b [2020-11-09 12:54:47,554 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 12:54:47,555 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_tso.oepc.i [2020-11-09 12:54:47,582 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/029749a5f/fae739ac5019487bb8a44063ae6bea0f/FLAGefb69866b [2020-11-09 12:54:47,853 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/029749a5f/fae739ac5019487bb8a44063ae6bea0f [2020-11-09 12:54:47,857 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 12:54:47,866 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 12:54:47,871 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 12:54:47,871 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 12:54:47,876 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 12:54:47,877 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:54:47" (1/1) ... [2020-11-09 12:54:47,883 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c4669e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:54:47, skipping insertion in model container [2020-11-09 12:54:47,883 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:54:47" (1/1) ... [2020-11-09 12:54:47,893 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 12:54:47,968 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 12:54:48,585 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 12:54:48,600 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 12:54:48,695 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 12:54:48,870 INFO L208 MainTranslator]: Completed translation [2020-11-09 12:54:48,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:54:48 WrapperNode [2020-11-09 12:54:48,894 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 12:54:48,895 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 12:54:48,896 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 12:54:48,896 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 12:54:48,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:54:48" (1/1) ... [2020-11-09 12:54:48,953 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:54:48" (1/1) ... [2020-11-09 12:54:48,998 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 12:54:49,000 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 12:54:49,001 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 12:54:49,005 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 12:54:49,017 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:54:48" (1/1) ... [2020-11-09 12:54:49,017 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:54:48" (1/1) ... [2020-11-09 12:54:49,031 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:54:48" (1/1) ... [2020-11-09 12:54:49,033 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:54:48" (1/1) ... [2020-11-09 12:54:49,051 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:54:48" (1/1) ... [2020-11-09 12:54:49,058 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:54:48" (1/1) ... [2020-11-09 12:54:49,063 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:54:48" (1/1) ... [2020-11-09 12:54:49,072 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 12:54:49,074 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 12:54:49,077 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 12:54:49,077 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 12:54:49,079 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:54:48" (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 12:54:49,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 12:54:49,175 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 12:54:49,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 12:54:49,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 12:54:49,175 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 12:54:49,175 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 12:54:49,176 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 12:54:49,176 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 12:54:49,176 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-09 12:54:49,176 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-09 12:54:49,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 12:54:49,176 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 12:54:49,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 12:54:49,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 12:54:49,179 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 12:54:49,632 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 12:54:49,632 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 12:54:49,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:54:49 BoogieIcfgContainer [2020-11-09 12:54:49,635 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 12:54:49,637 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 12:54:49,637 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 12:54:49,641 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 12:54:49,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 12:54:47" (1/3) ... [2020-11-09 12:54:49,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10cbd58a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 12:54:49, skipping insertion in model container [2020-11-09 12:54:49,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:54:48" (2/3) ... [2020-11-09 12:54:49,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10cbd58a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 12:54:49, skipping insertion in model container [2020-11-09 12:54:49,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:54:49" (3/3) ... [2020-11-09 12:54:49,645 INFO L111 eAbstractionObserver]: Analyzing ICFG safe035_tso.oepc.i [2020-11-09 12:54:49,664 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 12:54:49,664 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-09 12:54:49,669 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 12:54:49,670 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 12:54:49,702 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:49,702 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:49,703 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:49,703 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:49,703 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:49,703 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:49,703 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:49,704 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:49,704 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:49,704 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:49,705 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:49,705 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:49,706 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:49,706 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:49,706 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:49,706 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:49,706 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:49,707 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:49,707 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:49,707 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:49,707 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:49,708 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:49,708 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:49,708 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:49,709 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:49,709 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:49,709 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:49,709 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:49,709 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:49,710 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:49,710 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:49,710 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:49,711 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:49,711 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:49,711 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:49,711 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:49,714 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:49,714 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:49,715 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:49,715 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:49,721 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:49,721 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:49,721 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:49,722 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:49,724 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:49,724 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:49,725 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:49,725 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:49,727 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 12:54:49,741 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-09 12:54:49,768 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 12:54:49,768 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 12:54:49,769 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-09 12:54:49,769 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-09 12:54:49,769 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 12:54:49,769 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 12:54:49,769 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 12:54:49,770 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 12:54:49,784 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-09 12:54:49,787 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 79 transitions, 173 flow [2020-11-09 12:54:49,790 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 79 transitions, 173 flow [2020-11-09 12:54:49,793 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 79 transitions, 173 flow [2020-11-09 12:54:49,843 INFO L129 PetriNetUnfolder]: 3/76 cut-off events. [2020-11-09 12:54:49,843 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 12:54:49,848 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 76 events. 3/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 62 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-11-09 12:54:49,852 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-11-09 12:54:52,426 WARN L194 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-11-09 12:54:52,582 WARN L194 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-11-09 12:54:53,628 WARN L194 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-11-09 12:54:53,746 WARN L194 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-11-09 12:54:53,968 WARN L194 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-11-09 12:54:54,209 WARN L194 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 12:54:54,327 WARN L194 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 12:54:54,437 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 12:54:54,545 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 12:54:54,551 INFO L131 LiptonReduction]: Checked pairs total: 2778 [2020-11-09 12:54:54,551 INFO L133 LiptonReduction]: Total number of compositions: 68 [2020-11-09 12:54:54,558 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-11-09 12:54:54,591 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-11-09 12:54:54,593 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-11-09 12:54:54,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-09 12:54:54,601 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:54:54,601 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:54:54,602 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:54:54,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:54:54,608 INFO L82 PathProgramCache]: Analyzing trace with hash -345538935, now seen corresponding path program 1 times [2020-11-09 12:54:54,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:54:54,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678091415] [2020-11-09 12:54:54,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:54:54,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:54:54,803 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 12:54:54,804 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678091415] [2020-11-09 12:54:54,805 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:54:54,805 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 12:54:54,805 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614645142] [2020-11-09 12:54:54,810 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-09 12:54:54,811 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:54:54,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-09 12:54:54,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-09 12:54:54,830 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-11-09 12:54:54,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:54:54,883 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-11-09 12:54:54,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-09 12:54:54,886 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-11-09 12:54:54,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:54:54,922 INFO L225 Difference]: With dead ends: 362 [2020-11-09 12:54:54,923 INFO L226 Difference]: Without dead ends: 298 [2020-11-09 12:54:54,924 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 12:54:54,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-11-09 12:54:55,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-11-09 12:54:55,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-11-09 12:54:55,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-11-09 12:54:55,013 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-11-09 12:54:55,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:54:55,014 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-11-09 12:54:55,015 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-09 12:54:55,015 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-11-09 12:54:55,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-09 12:54:55,017 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:54:55,017 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:54:55,017 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 12:54:55,017 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:54:55,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:54:55,018 INFO L82 PathProgramCache]: Analyzing trace with hash -2121797576, now seen corresponding path program 1 times [2020-11-09 12:54:55,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:54:55,019 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114011743] [2020-11-09 12:54:55,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:54:55,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:54:55,156 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 12:54:55,157 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114011743] [2020-11-09 12:54:55,157 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:54:55,157 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 12:54:55,158 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161180488] [2020-11-09 12:54:55,161 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 12:54:55,161 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:54:55,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 12:54:55,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 12:54:55,163 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-11-09 12:54:55,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:54:55,219 INFO L93 Difference]: Finished difference Result 298 states and 816 transitions. [2020-11-09 12:54:55,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 12:54:55,220 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-11-09 12:54:55,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:54:55,225 INFO L225 Difference]: With dead ends: 298 [2020-11-09 12:54:55,225 INFO L226 Difference]: Without dead ends: 234 [2020-11-09 12:54:55,228 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 12:54:55,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2020-11-09 12:54:55,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2020-11-09 12:54:55,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-11-09 12:54:55,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 640 transitions. [2020-11-09 12:54:55,275 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 640 transitions. Word has length 9 [2020-11-09 12:54:55,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:54:55,276 INFO L481 AbstractCegarLoop]: Abstraction has 234 states and 640 transitions. [2020-11-09 12:54:55,276 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 12:54:55,279 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 640 transitions. [2020-11-09 12:54:55,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-09 12:54:55,282 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:54:55,282 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:54:55,283 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 12:54:55,283 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:54:55,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:54:55,284 INFO L82 PathProgramCache]: Analyzing trace with hash 1060758680, now seen corresponding path program 1 times [2020-11-09 12:54:55,284 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:54:55,285 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098079615] [2020-11-09 12:54:55,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:54:55,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:54:55,427 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 12:54:55,427 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098079615] [2020-11-09 12:54:55,428 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:54:55,428 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 12:54:55,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800231727] [2020-11-09 12:54:55,429 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 12:54:55,429 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:54:55,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 12:54:55,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 12:54:55,430 INFO L87 Difference]: Start difference. First operand 234 states and 640 transitions. Second operand 4 states. [2020-11-09 12:54:55,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:54:55,466 INFO L93 Difference]: Finished difference Result 346 states and 916 transitions. [2020-11-09 12:54:55,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 12:54:55,467 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-09 12:54:55,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:54:55,469 INFO L225 Difference]: With dead ends: 346 [2020-11-09 12:54:55,469 INFO L226 Difference]: Without dead ends: 164 [2020-11-09 12:54:55,469 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:54:55,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2020-11-09 12:54:55,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2020-11-09 12:54:55,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-11-09 12:54:55,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 432 transitions. [2020-11-09 12:54:55,481 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 432 transitions. Word has length 11 [2020-11-09 12:54:55,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:54:55,482 INFO L481 AbstractCegarLoop]: Abstraction has 164 states and 432 transitions. [2020-11-09 12:54:55,482 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 12:54:55,482 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 432 transitions. [2020-11-09 12:54:55,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-09 12:54:55,484 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:54:55,484 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:54:55,484 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 12:54:55,484 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:54:55,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:54:55,487 INFO L82 PathProgramCache]: Analyzing trace with hash -1476250237, now seen corresponding path program 1 times [2020-11-09 12:54:55,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:54:55,488 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563082925] [2020-11-09 12:54:55,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:54:55,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:54:55,663 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 12:54:55,664 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563082925] [2020-11-09 12:54:55,664 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:54:55,665 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 12:54:55,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469591147] [2020-11-09 12:54:55,665 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 12:54:55,666 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:54:55,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 12:54:55,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 12:54:55,667 INFO L87 Difference]: Start difference. First operand 164 states and 432 transitions. Second operand 4 states. [2020-11-09 12:54:55,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:54:55,719 INFO L93 Difference]: Finished difference Result 183 states and 435 transitions. [2020-11-09 12:54:55,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 12:54:55,722 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-11-09 12:54:55,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:54:55,723 INFO L225 Difference]: With dead ends: 183 [2020-11-09 12:54:55,723 INFO L226 Difference]: Without dead ends: 131 [2020-11-09 12:54:55,724 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:54:55,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-11-09 12:54:55,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2020-11-09 12:54:55,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-11-09 12:54:55,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 303 transitions. [2020-11-09 12:54:55,738 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 303 transitions. Word has length 12 [2020-11-09 12:54:55,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:54:55,739 INFO L481 AbstractCegarLoop]: Abstraction has 131 states and 303 transitions. [2020-11-09 12:54:55,740 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 12:54:55,740 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 303 transitions. [2020-11-09 12:54:55,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-09 12:54:55,742 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:54:55,742 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:54:55,747 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 12:54:55,748 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:54:55,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:54:55,748 INFO L82 PathProgramCache]: Analyzing trace with hash 1073724632, now seen corresponding path program 1 times [2020-11-09 12:54:55,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:54:55,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183154132] [2020-11-09 12:54:55,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:54:55,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:54:55,875 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 12:54:55,875 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183154132] [2020-11-09 12:54:55,875 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:54:55,876 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 12:54:55,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275845719] [2020-11-09 12:54:55,876 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 12:54:55,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:54:55,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 12:54:55,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:54:55,878 INFO L87 Difference]: Start difference. First operand 131 states and 303 transitions. Second operand 5 states. [2020-11-09 12:54:55,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:54:55,931 INFO L93 Difference]: Finished difference Result 118 states and 245 transitions. [2020-11-09 12:54:55,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 12:54:55,933 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-11-09 12:54:55,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:54:55,934 INFO L225 Difference]: With dead ends: 118 [2020-11-09 12:54:55,934 INFO L226 Difference]: Without dead ends: 87 [2020-11-09 12:54:55,935 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-09 12:54:55,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-11-09 12:54:55,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2020-11-09 12:54:55,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-11-09 12:54:55,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 172 transitions. [2020-11-09 12:54:55,939 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 172 transitions. Word has length 13 [2020-11-09 12:54:55,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:54:55,939 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 172 transitions. [2020-11-09 12:54:55,939 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 12:54:55,940 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 172 transitions. [2020-11-09 12:54:55,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-09 12:54:55,941 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:54:55,941 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:54:55,941 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 12:54:55,941 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:54:55,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:54:55,942 INFO L82 PathProgramCache]: Analyzing trace with hash 809328863, now seen corresponding path program 1 times [2020-11-09 12:54:55,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:54:55,942 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39362084] [2020-11-09 12:54:55,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:54:55,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:54:56,051 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 12:54:56,052 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39362084] [2020-11-09 12:54:56,052 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:54:56,052 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-09 12:54:56,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721332158] [2020-11-09 12:54:56,053 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-09 12:54:56,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:54:56,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-09 12:54:56,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-09 12:54:56,054 INFO L87 Difference]: Start difference. First operand 87 states and 172 transitions. Second operand 6 states. [2020-11-09 12:54:56,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:54:56,105 INFO L93 Difference]: Finished difference Result 76 states and 148 transitions. [2020-11-09 12:54:56,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 12:54:56,105 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-11-09 12:54:56,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:54:56,106 INFO L225 Difference]: With dead ends: 76 [2020-11-09 12:54:56,106 INFO L226 Difference]: Without dead ends: 67 [2020-11-09 12:54:56,107 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-09 12:54:56,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-11-09 12:54:56,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2020-11-09 12:54:56,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-11-09 12:54:56,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 132 transitions. [2020-11-09 12:54:56,110 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 132 transitions. Word has length 15 [2020-11-09 12:54:56,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:54:56,110 INFO L481 AbstractCegarLoop]: Abstraction has 67 states and 132 transitions. [2020-11-09 12:54:56,110 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-09 12:54:56,110 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 132 transitions. [2020-11-09 12:54:56,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-09 12:54:56,111 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:54:56,112 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 12:54:56,112 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 12:54:56,112 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:54:56,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:54:56,113 INFO L82 PathProgramCache]: Analyzing trace with hash -1097223765, now seen corresponding path program 1 times [2020-11-09 12:54:56,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:54:56,113 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975834650] [2020-11-09 12:54:56,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:54:56,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:54:56,256 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 12:54:56,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975834650] [2020-11-09 12:54:56,259 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:54:56,259 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-09 12:54:56,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901204714] [2020-11-09 12:54:56,260 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-09 12:54:56,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:54:56,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-09 12:54:56,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-11-09 12:54:56,263 INFO L87 Difference]: Start difference. First operand 67 states and 132 transitions. Second operand 10 states. [2020-11-09 12:54:56,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:54:56,505 INFO L93 Difference]: Finished difference Result 108 states and 197 transitions. [2020-11-09 12:54:56,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-09 12:54:56,506 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 18 [2020-11-09 12:54:56,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:54:56,507 INFO L225 Difference]: With dead ends: 108 [2020-11-09 12:54:56,507 INFO L226 Difference]: Without dead ends: 57 [2020-11-09 12:54:56,508 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2020-11-09 12:54:56,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-11-09 12:54:56,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 46. [2020-11-09 12:54:56,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-11-09 12:54:56,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 78 transitions. [2020-11-09 12:54:56,510 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 78 transitions. Word has length 18 [2020-11-09 12:54:56,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:54:56,511 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 78 transitions. [2020-11-09 12:54:56,511 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-09 12:54:56,511 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 78 transitions. [2020-11-09 12:54:56,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-09 12:54:56,512 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:54:56,512 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 12:54:56,512 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-09 12:54:56,512 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:54:56,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:54:56,513 INFO L82 PathProgramCache]: Analyzing trace with hash -30995043, now seen corresponding path program 2 times [2020-11-09 12:54:56,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:54:56,513 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257630928] [2020-11-09 12:54:56,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:54:56,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:54:56,642 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 12:54:56,643 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257630928] [2020-11-09 12:54:56,646 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:54:56,646 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-09 12:54:56,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934554761] [2020-11-09 12:54:56,647 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-09 12:54:56,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:54:56,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-09 12:54:56,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-11-09 12:54:56,651 INFO L87 Difference]: Start difference. First operand 46 states and 78 transitions. Second operand 10 states. [2020-11-09 12:54:56,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:54:56,836 INFO L93 Difference]: Finished difference Result 60 states and 99 transitions. [2020-11-09 12:54:56,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-09 12:54:56,837 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 18 [2020-11-09 12:54:56,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:54:56,837 INFO L225 Difference]: With dead ends: 60 [2020-11-09 12:54:56,837 INFO L226 Difference]: Without dead ends: 52 [2020-11-09 12:54:56,838 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-11-09 12:54:56,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-11-09 12:54:56,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 46. [2020-11-09 12:54:56,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-11-09 12:54:56,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 76 transitions. [2020-11-09 12:54:56,840 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 76 transitions. Word has length 18 [2020-11-09 12:54:56,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:54:56,841 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 76 transitions. [2020-11-09 12:54:56,841 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-09 12:54:56,841 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 76 transitions. [2020-11-09 12:54:56,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-09 12:54:56,842 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:54:56,842 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 12:54:56,842 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-09 12:54:56,842 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:54:56,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:54:56,843 INFO L82 PathProgramCache]: Analyzing trace with hash 1878905967, now seen corresponding path program 3 times [2020-11-09 12:54:56,843 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:54:56,843 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501984620] [2020-11-09 12:54:56,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:54:56,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:54:56,980 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 12:54:56,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501984620] [2020-11-09 12:54:56,981 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:54:56,981 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-09 12:54:56,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144511534] [2020-11-09 12:54:56,982 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-09 12:54:56,982 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:54:56,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-09 12:54:56,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-11-09 12:54:56,983 INFO L87 Difference]: Start difference. First operand 46 states and 76 transitions. Second operand 10 states. [2020-11-09 12:54:57,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:54:57,127 INFO L93 Difference]: Finished difference Result 61 states and 96 transitions. [2020-11-09 12:54:57,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-09 12:54:57,128 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 18 [2020-11-09 12:54:57,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:54:57,128 INFO L225 Difference]: With dead ends: 61 [2020-11-09 12:54:57,128 INFO L226 Difference]: Without dead ends: 51 [2020-11-09 12:54:57,129 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-11-09 12:54:57,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-11-09 12:54:57,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 40. [2020-11-09 12:54:57,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-11-09 12:54:57,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 66 transitions. [2020-11-09 12:54:57,131 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 66 transitions. Word has length 18 [2020-11-09 12:54:57,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:54:57,131 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 66 transitions. [2020-11-09 12:54:57,132 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-09 12:54:57,132 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 66 transitions. [2020-11-09 12:54:57,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-09 12:54:57,132 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:54:57,132 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 12:54:57,132 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-09 12:54:57,133 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:54:57,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:54:57,133 INFO L82 PathProgramCache]: Analyzing trace with hash -1731427213, now seen corresponding path program 4 times [2020-11-09 12:54:57,133 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:54:57,134 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757609431] [2020-11-09 12:54:57,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:54:57,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:54:57,194 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 12:54:57,194 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757609431] [2020-11-09 12:54:57,194 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:54:57,195 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 12:54:57,195 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988244205] [2020-11-09 12:54:57,195 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 12:54:57,195 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:54:57,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 12:54:57,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:54:57,196 INFO L87 Difference]: Start difference. First operand 40 states and 66 transitions. Second operand 5 states. [2020-11-09 12:54:57,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:54:57,232 INFO L93 Difference]: Finished difference Result 39 states and 65 transitions. [2020-11-09 12:54:57,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 12:54:57,233 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-11-09 12:54:57,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:54:57,233 INFO L225 Difference]: With dead ends: 39 [2020-11-09 12:54:57,233 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 12:54:57,233 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-09 12:54:57,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 12:54:57,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 12:54:57,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 12:54:57,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 12:54:57,236 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-11-09 12:54:57,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:54:57,236 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 12:54:57,236 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 12:54:57,236 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 12:54:57,237 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 12:54:57,237 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-09 12:54:57,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 12:54:57 BasicIcfg [2020-11-09 12:54:57,241 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 12:54:57,244 INFO L168 Benchmark]: Toolchain (without parser) took 9383.76 ms. Allocated memory was 155.2 MB in the beginning and 257.9 MB in the end (delta: 102.8 MB). Free memory was 129.0 MB in the beginning and 173.2 MB in the end (delta: -44.2 MB). Peak memory consumption was 58.6 MB. Max. memory is 8.0 GB. [2020-11-09 12:54:57,245 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 155.2 MB. Free memory is still 127.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 12:54:57,246 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1023.68 ms. Allocated memory is still 155.2 MB. Free memory was 128.4 MB in the beginning and 132.9 MB in the end (delta: -4.6 MB). Peak memory consumption was 31.7 MB. Max. memory is 8.0 GB. [2020-11-09 12:54:57,252 INFO L168 Benchmark]: Boogie Procedure Inliner took 102.84 ms. Allocated memory is still 155.2 MB. Free memory was 132.9 MB in the beginning and 130.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 12:54:57,253 INFO L168 Benchmark]: Boogie Preprocessor took 72.54 ms. Allocated memory is still 155.2 MB. Free memory was 130.9 MB in the beginning and 129.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 12:54:57,256 INFO L168 Benchmark]: RCFGBuilder took 561.43 ms. Allocated memory is still 155.2 MB. Free memory was 129.3 MB in the beginning and 107.3 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-11-09 12:54:57,257 INFO L168 Benchmark]: TraceAbstraction took 7604.41 ms. Allocated memory was 155.2 MB in the beginning and 257.9 MB in the end (delta: 102.8 MB). Free memory was 106.7 MB in the beginning and 173.2 MB in the end (delta: -66.4 MB). Peak memory consumption was 37.4 MB. Max. memory is 8.0 GB. [2020-11-09 12:54:57,262 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 155.2 MB. Free memory is still 127.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 1023.68 ms. Allocated memory is still 155.2 MB. Free memory was 128.4 MB in the beginning and 132.9 MB in the end (delta: -4.6 MB). Peak memory consumption was 31.7 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 102.84 ms. Allocated memory is still 155.2 MB. Free memory was 132.9 MB in the beginning and 130.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 72.54 ms. Allocated memory is still 155.2 MB. Free memory was 130.9 MB in the beginning and 129.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 561.43 ms. Allocated memory is still 155.2 MB. Free memory was 129.3 MB in the beginning and 107.3 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 7604.41 ms. Allocated memory was 155.2 MB in the beginning and 257.9 MB in the end (delta: 102.8 MB). Free memory was 106.7 MB in the beginning and 173.2 MB in the end (delta: -66.4 MB). Peak memory consumption was 37.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 999 VarBasedMoverChecksPositive, 33 VarBasedMoverChecksNegative, 6 SemBasedMoverChecksPositive, 27 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 82 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.7s, 86 PlacesBefore, 32 PlacesAfterwards, 79 TransitionsBefore, 23 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 2 ChoiceCompositions, 68 TotalNumberOfCompositions, 2778 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.4s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.8s, HoareTripleCheckerStatistics: 226 SDtfs, 197 SDslu, 636 SDs, 0 SdLazy, 493 SolverSat, 50 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 65 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 28 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 140 NumberOfCodeBlocks, 140 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 130 ConstructedInterpolants, 0 QuantifiedInterpolants, 7989 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...